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- Rice Protect Kits | Biological Pest Control Maufacturer | Indogulf BioAg
Rice protect kits suppliers and manufacturers company in USA. Indogulf BioAg provide the best organic fertilizers for Rice production, protect the crop from insects, pest, and rice disease to achieve better harvest < Crop Kits Rice Protect Kit Rice Protect Kit offers integrated pest and disease management solutions tailored for rice cultivation. It effectively controls a range of insect pests including stem borers and rice hispa, while also addressing common diseases like blast and bacterial blight. Ideal for ensuring crop health and maximizing yield potential. Product Enquiry Rice Protect Kit Disease Management Discover our comprehensive disease management strategies aimed at preventing, controlling, and mitigating plant diseases. Our advanced solutions enhance crop resilience, promote healthy growth, and ensure optimal yields by effectively managing fungal, bacterial, and viral threats in your fields. Bacterial Blight Blast Brown Spot Sheath Blight Udbatta Disease Rice Protect Kit Insect Pest Management Explore our innovative insect pest management solutions designed to effectively control pest populations, protect your crops, and enhance yield quality. Our integrated approaches ensure sustainable and eco-friendly pest control, keeping your fields healthy and productive throughout the growing season. Army Worms Case Worm Gundhi Bug Leaf Folders Plant Hopper Rice Hispa Root Knot Nematodes Stem Borers Resources Read all
- Agri-Input Contract Manufacturing Services | Indogulf BioAg
Indogulf BioAg offers reliable contract manufacturing for nano fertilizers, microbial strains, and biostimulants. Scalable, quality-controlled production for global agri-input brands. Contract Manufacturing Scalable Fermentation & Production IndoGulf BioAg’s Contract Manufacturing services take your proven microbial product through scale-up and large-scale production with the highest quality standards. Contact us We specialize in fermenting a wide array of microorganisms – from bacteria and fungi to yeasts – translating lab-grown cultures into industrial batches that retain high efficacy. We cultivate microbial strains in carefully optimized bioreactors, maintaining precise control over fermentation parameters like pH, temperature, and aeration to ensure high yields and consistent potency. Our production infrastructure supports flexible batch sizes—from small pilot volumes to full-scale manufacturing in tanks exceeding 10,000 liters—making it ideal for both trial runs and commercial rollouts. Following fermentation, we implement advanced downstream processing techniques such as centrifugation and filtration to concentrate and purify the biomass. The product is then stabilized using proprietary methods that extend shelf life to 1–2 years, and formulated into various formats including liquid suspensions, wettable powders, freeze-dried powders, or granules to suit the intended use. Final steps include custom blending with adjuvants or nutrients and packaging into client-specified formats, complete with compliant labeling. Our rigorous quality control protocols—covering microbial purity, viable counts, and performance validation—ensure that every batch meets the highest standards of efficacy, safety, and regulatory compliance. Contract Manufacturing Highlights Industrial Fermentation Expertise Proven capability in scaling cultures while maintaining strain performance; experienced with both aerobic and anaerobic fermentation processes for diverse microbes. Flexible Formulation Options Ability to produce multiple product forms (liquids, powders, granules) to suit different application methods, all while preserving high viable counts and activity. Cutting-Edge Downstream Processing Use of modern equipment for biomass separation and drying (e.g. spray dryers, lyophilizers) that gently process microbes without harming their efficacy. Quality Assurance Every batch undergoes rigorous QA/QC testing for purity, concentration, and effectiveness. Production is carried out in facilities following Good Manufacturing Practices (GMP) to ensure reliability. Volume Scalability Adaptable production scheduling that can accommodate small custom orders or ramp up to large volumes as demand grows, ensuring on-time delivery for product launches and distribution. Turn your microbial concept into proven science. Contact our CRO team to custom-design a research program that identifies the best strains and demonstrates their value for your application. Contact us
- Liv Care Manufacturer and Exporter | Direct fed Microbials for Aquaculture | Indogulf BioAg
< Animal Health Livcare Liv Care is a specialty formulation for treatment of fish & shrimps to improve their liver functioning and aiding in digestion. Product Enquiry Benefits Boosts Immunity and Disease Resistance Strengthens the immune system and improves resistance to common diseases in fish, prawns, and shrimp. Improves Appetite, Digestion, and Nutrient Assimilation Enhances feeding behavior, supports efficient digestion, and promotes better nutrient absorption, leading to healthy weight gain. Protects Liver and Enhances Growth Performance Prevents fatty liver infiltration, reduces feed wastage by increasing appetite, and supports sustained growth and healthy production. Supports Metabolism and Nutritional Efficiency Activates key enzymes involved in metabolic processes, ensuring optimal utilization of a proper nutritional diet. Component Amount per 30 mL Thiamine HCl 5 mg Ferrous Chloride 80 mg Nicotinic Acid 20 mg Nicotinamide 45 mg Ferrous Gluconate 200 mg Riboflavin 5 mg Calcium Lactate 300 mg Silymarin 100 mg Liver Fraction (II) (from 3.75g fresh liver) 150 mg Aqueous Base 30 mg Composition Dosage & Application Additional Info Dosage & Application Content coming soon! Additional Info Content coming soon! Related Products Piscicare Aquatract Aqua Energy Aqua Pro Aquamin Probio Aqua More Products Resources Read all
- Nulla facilisi. Integer commodo, augue ut feugiat faucibus, turpis risus ullamcorper erat, nec viverra sapien nunc in nulla. | Indogulf BioAg
Nulla facilisi. Integer commodo, augue ut feugiat faucibus, turpis risus ullamcorper erat, nec viverra sapien nunc in nulla. Posted on July 25, 2025 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla facilisi. Integer commodo, augue ut feugiat faucibus, turpis risus ullamcorper erat, nec viverra sapien nunc in nulla. Quisque aliquet urna ut libero ultrices, non ullamcorper mi fermentum. Sed feugiat mauris ac felis elementum, ut tincidunt magna dapibus. Suspendisse commodo orci eget purus vulputate, eget ultricies turpis dictum. Vivamus dignissim, enim a sollicitudin scelerisque, velit mauris suscipit est, et viverra neque urna non lorem. Curabitur sit amet tristique lectus. Nam vitae quam et arcu volutpat tincidunt sed nec elit. Aenean porttitor leo at lectus dapibus, id luctus justo ornare. Sed convallis nisl sed sapien malesuada, eu dapibus ex bibendum. Curabitur luctus finibus tortor, id hendrerit ligula blandit eget. Phasellus ultricies turpis ut dolor ultrices, ut scelerisque arcu dignissim. Nulla tincidunt risus et justo tincidunt bibendum. Vestibulum sed urna tincidunt, pretium mauris ut, vehicula nisl. Nam gravida ullamcorper leo, nec malesuada lorem feugiat at. Etiam sed ex in est bibendum laoreet. Integer eu elit nec nunc suscipit pellentesque. Vestibulum in sagittis elit, sed volutpat nulla. Pellentesque rhoncus facilisis massa, ut tincidunt risus venenatis nec. Suspendisse tempor nulla turpis, sed elementum nunc gravida vel. Donec mattis ornare mauris, non laoreet ipsum euismod at. Vestibulum rhoncus dui sit amet magna fermentum, sit amet porttitor sem tincidunt. Sed nec nunc nec nibh lacinia fermentum. Nam volutpat, mi vel feugiat sagittis, felis ante viverra augue, a aliquet nibh turpis et libero. Nunc tincidunt metus vitae sem pretium, nec efficitur libero fermentum. Aliquam nec congue risus. Morbi feugiat quam in nibh cursus, eget tincidunt felis malesuada. Quisque a purus sed arcu laoreet efficitur. Cras interdum velit eu erat condimentum, et sagittis magna scelerisque. Suspendisse quis orci sit amet turpis lacinia consectetur. Cras varius quam sed lacus laoreet, ut elementum odio lacinia. Donec sed congue ligula, sed laoreet justo. Curabitur viverra nisi sit amet posuere fermentum. In et dui sed nunc cursus euismod et vitae metus. # # # About Indogulg BioAg Indogulf BioAg is the dedicated bio-technology division set-up under the Indogulf Group. We are pioneers in the development of biological inoculant, organic fertilizer and mycorrhiza (VAM). Our research & manufacturing facility is located in Salem, a small town in South India that is known for it’s rich underground water that promotes an extensive microbial population, making it an ideal hub for microbial bioscience. # # # Contact +1 437 774 3831 biosolutions@indogulfgroup.com What's New
- Probiotics | Microbial Species | Indogulf BioA
Lactobacillus helveticus helps improve digestion, boosts immune health, and may reduce anxiety and stress through its calming effects. < Microbial Species Lactobacillus helveticus Lactobacillus helveticus helps improve digestion, boosts immune health, and may reduce anxiety and stress through its calming effects. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram Product Enquiry Download Brochure Benefits Digestive Health Support This probiotic promotes gut health by aiding digestion and alleviating symptoms of gastrointestinal discomfort. Stress and Anxiety Reduction It has been linked to reduced stress and anxiety levels, promoting mental well-being through the gut-brain axis. Lactose Digestion Aid It helps break down lactose, making it beneficial for individuals with lactose intolerance and improving dairy digestion. Immune System Enhancement This strain boosts immune function by increasing the production of antibodies and enhancing the body’s defense against infections. Dosage & Application Additional Info Scientific References Mode of Action FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Key Features All microbial strains are characterized using 16S rDNA. All products are non-GMO. No animal-derived materials are used. The typical shelf life is 2 years. All strains are screened in-house using high-throughput screening methods. We can customize manufacturing based on the required strength and dosage. High-resilience strains Stable under a wide pH range Stable under a broad temperature range Stable in the presence of bile salts and acids Do not show antibiotic resistance Packaging Material The product is packaged in a multi-layer, ultra-high barrier foil that is heat-sealed and placed inside a cardboard shipper or plastic drum. Shipping Shipping is available worldwide. Probiotic packages are typically transported in insulated Styrofoam shippers with dry ice to avoid exposure to extreme high temperatures during transit. Support Documentation Certificate of Analysis (COA) Specifications Material Safety Data Sheets (MSDS) Stability studies (18 months) Certifications ISO 9001 ISO 22000 HACCP Halal and Kosher Certification (for Lactobacillus strains) FSSAI Dosage & Application Contact us for more details FAQ Content coming soon! Related Products Bifidobacterium animalis Bifidobacterium bifidum Bifidobacterium breve Bifidobacterium infantis Bifidobacterium longum Clostridium butyricum Lactobacillus acidophilus Lactobacillus bulgaricus Out of gallery More Products Which Bacterium Fixes Nitrogen in Plant Root Nodules? Stanislav M. Mar 5 2 min read What Is the Process of Nitrogen Fixation by Bacteria? Stanislav M. Mar 5 3 min read How Do Nitrogen-Fixing Bacteria Work? Stanislav M. Mar 5 7 min read What Are the Industrial Applications of Aspergillus Oryzae? Stanislav M. Feb 28 2 min read Resources Read all
- Probiotics | Microbial Species | Indogulf BioA
Lactobacillus acidophilus helps digest lactose, improves gut health, and boosts the immune system, supporting overall digestive wellness. < Microbial Species Lactobacillus acidophilus Lactobacillus acidophilus helps digest lactose, improves gut health, and boosts the immune system, supporting overall digestive wellness. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram Product Enquiry Download Brochure Benefits Immune System Boost This strain enhances immune function by stimulating the production of antibodies and supporting the body's defense against infections. Digestive Health Support This probiotic aids digestion by maintaining a balanced gut microbiota and alleviating symptoms of constipation and diarrhea. Lactose Digestion Improvement It helps break down lactose, making it beneficial for individuals with lactose intolerance and reducing related discomfort. Cholesterol Management It may assist in lowering cholesterol levels by binding bile acids, promoting overall cardiovascular health. Dosage & Application Additional Info Scientific References Mode of Action FAQ Scientific References Content coming soon! Mode of Action Content coming soon! Additional Info Key Features All microbial strains are characterized using 16S rDNA. All products are non-GMO. No animal-derived materials are used. The typical shelf life is 2 years. All strains are screened in-house using high-throughput screening methods. We can customize manufacturing based on the required strength and dosage. High-resilience strains Stable under a wide pH range Stable under a broad temperature range Stable in the presence of bile salts and acids Do not show antibiotic resistance Packaging Material The product is packaged in a multi-layer, ultra-high barrier foil that is heat-sealed and placed inside a cardboard shipper or plastic drum. Shipping Shipping is available worldwide. Probiotic packages are typically transported in insulated Styrofoam shippers with dry ice to avoid exposure to extreme high temperatures during transit. Support Documentation Certificate of Analysis (COA) Specifications Material Safety Data Sheets (MSDS) Stability studies (18 months) Certifications ISO 9001 ISO 22000 HACCP Halal and Kosher Certification (for Lactobacillus strains) FSSAI Dosage & Application Contact us for more details FAQ Content coming soon! Related Products Bifidobacterium animalis Bifidobacterium bifidum Bifidobacterium breve Bifidobacterium infantis Bifidobacterium longum Clostridium butyricum Lactobacillus bulgaricus Lactobacillus casei More Products Resources Read all
- Fermacto Manufacturer & Exporter |Fermacto | Microbial Blends | Indogulf BioAg
Enhance soil health with Fermacto microbial blend by Indogulf BioAg. 100% organic, certified, and effective for optimal plant growth. Trusted by experts. < Microbial Blends Fermacto Fermacto is a bio-fertilizer with nitrogen and phosphorus fixing bacteria, and essential nutrients. It promotes superior crop production by providing balanced and available nutrition. Product Enquiry Download Brochure Benefits Enhances nutrient availability Contains bioactive humic and fulvic substances, cytokinins, auxins, betaines, gibberellins, N, P, K, and trace elements from vermicompost and seaweed. Supports root and shoot growth and supplements essential nutrients crucial for crop development. Improves soil structure Enhances soil health by improving structure, porosity, and water retention capacity, promoting healthier root growth and overall plant vitality. Increases mineral and water uptake Provides growth-promoting hormones like IAA and GA, enhancing mineral and water absorption efficiency in plants. Reduces Disease causing Organisms and increases beneficial Microbes Enhances microbial balance in soil, reducing harmful pathogens and promoting beneficial microbes. Components Essential nutrients and nitrogen / phosphorus fixing bacteria Composition Dosage & Application Additional Info Dosage & Application Dosage: Mix 10 mL of FERMACTO with 10 L of water. Foliar and Soil Spray Dilute the Fermacto Liquid Bio-fertiliser with water, gently shake or stir (for better results, let it sit for an hour), and then spray over the leaves and soil surface, focusing particularly on the radicle areas of your plants. The volume of fertilized water will vary depending on the size of the crop canopy. Note for First Spray After mixing with water, ensure the volume of fertilized water is equivalent to that of traditional solid fertilizer. For enhanced effects, it is recommended to loosen the soil before application and again a couple of months later. Application: Treat the soil once before sowing. Additional Info Mode of Action It consists of bioactive humic and fulvic substances of vermicompost origin, cytokinins, auxins, betaines, and gibberellins derived from seaweed fermentation. Additionally, it contains biologically derived N, P, K, and trace elements from vermicompost and seaweed, which promote better root and shoot growth and supplement essential nutrients at critical stages of crop growth. Shelf Life & Packaging: Storage: Store in a cool, dry place at room temperature Shelf Life: 24 months from the date of manufacture at room temperature Packaging: 1 litre bottle Related Products Micro-Manna Microm Multi-Bio More Products Resources Read all
- Bradyrhizobium Ekanii Manufacturer & Exporter | Nitrogen Fixing Bacteria | Microbial Species | Indogulf BioA
Bradyrhizobium elkanii a bacterium that forms symbiotic relationships with legume roots, significantly improving nitrogen availability in the soil, which is essential for leguminous crop production. < Microbial Species Bradyrhizobium elkanii Bradyrhizobium elkanii a bacterium that forms symbiotic relationships with legume roots, significantly improving nitrogen availability in the soil, which is essential for leguminous crop production. Strength 1 x 10⁸ CFU per gram / 1 x 10⁹ CFU per gram Product Enquiry Download Brochure Benefits Nitrogen Fixation Bradyrhizobium elkanii forms symbiotic relationships with leguminous plants, fixing atmospheric nitrogen into ammonia, which enhances soil fertility and plant growth. Enhanced Nutrient Availability It enhances the availability of essential nutrients such as phosphorus and iron to the host plant, contributing to improved plant health and yield. Stress Tolerance Bradyrhizobium elkanii produces stress-protective compounds like exopolysaccharides, aiding plants in coping with environmental stresses such as drought and salinity. Biocontrol Agent It competes with pathogenic microorganisms in the rhizosphere, helping to suppress plant diseases and promote healthier plant growth. Dosage & Application Additional Info Scientific References Mode of Action FAQ Scientific References Scientific References and Molecular Mechanisms of Symbiosis (2025 Update) Overview of Bradyrhizobium elkanii Symbiotic Signaling The establishment of B. elkanii-legume symbiosis is a sophisticated molecular dialogue involving plant-derived signals (flavonoids), bacterial Nod factors (NFs), Type III secretion system (T3SS) effectors, and host-encoded resistance proteins. This intricate regulatory network determines host specificity, nodule organogenesis, and nitrogen fixation efficiency. 1. Molecular Signaling Initiation Flavonoid-Mediated Activation Host-to-Bacterium Signal:Legume roots experiencing nitrogen starvation exude flavonoid compounds (e.g., genistein, daidzein, luteolin) into the rhizosphere. These flavonoids penetrate the B. elkanii cell membrane and bind to the NodD regulatory protein, a member of the LysR family of transcriptional regulators. Key Research Findings: Flavonoid concentrations as low as 10⁻⁸ M activate nod gene expression in B. elkanii Different legume species exude distinct flavonoid profiles, contributing to host specificity Transcription of the nodYABCSUIJnolMNOnodZ operon is directly dependent upon NodD-flavonoid complexes TtsI (transcriptional activator of T3SS) is also responsive to flavonoids and coordinates both Nod factor and T3SS expression Regulatory Architecture The B. elkanii regulatory circuit involves: NodD: LysR-type regulator controlling nod gene expression NodW: Regulatory protein modulating flavonoid recognition TtsI: Transcriptional regulator of T3SS genes, activated by plant flavonoids Coordination of these regulators ensures spatiotemporal expression of symbiotic genes 2. Nod Factor Biosynthesis and Host Recognition Structure and Function Nod Factors (NFs):Nod factors are lipochitooligosaccharides (LCOs) comprising a backbone of 3–5 N-acetyl-D-glucosamine (GlcNAc) units with a long-chain fatty acyl group (C16–C18) attached to the non-reducing terminus. Nod Gene Clusters in B. elkanii: nodA: Encodes N-acetyl transferase; transfers the acyl chain to the GlcNAc backbone nodB: N-acetyl lyase; removes N-acetyl group from the non-reducing terminus nodC: Chitin synthase; synthesizes the GlcNAc backbone nodS, nodU, nodI, nodJ: Involved in modification and transport of Nod factors nodZ: Encodes a glucosidase involved in Nod factor modification for B. elkanii-specific legume recognition Nod Factor Modification B. elkanii produces modified Nod factors unique to this species: Acetyl substitution patterns differ between strains Host-specific decorations on the oligosaccharide backbone determine compatibility with legume receptors (NFRs: Nod Factor Receptors) Molecular recognition is highly specific; B. elkanii NF structure triggers nodulation in soybean (Glycine max), but not in hosts compatible with other rhizobia Structural Variations and Host Specificity B. elkanii genomes harbor extensive nodulation gene repertoires: Multiple nod gene variants on symbiotic islands allow synthesis of a spectrum of Nod factor structures Comparative genomic analysis reveals gene duplications and deletions affecting Nod factor decoration These variations contribute to the competitive nodulation phenotype of B. elkanii and its ability to nodulate multiple legume hosts at variable efficiency 3. Type III Secretion System (T3SS) and Effector Proteins T3SS Architecture The T3SS is a molecular syringe-like apparatus embedded in the bacterial cell envelope that delivers effector proteins (Nops: nodulation outer proteins) directly into host plant cells. T3SS Components in B. elkanii: RhcJ: Outer membrane channel protein RhcV: Inner membrane channel protein RhcQ: ATPase providing energy for protein secretion RhcC, RhcD, RhcE, RhcF: Basal body proteins FlhA, FliK, FliP: Apparatus assembly proteins Transcriptional Control: T3SS gene expression is controlled by TtsI (transcriptional activator) TtsI is activated by plant flavonoids, creating a coordinated response with Nod factor synthesis The T3SS is activated only in the presence of compatible plant roots, preventing wasteful energy expenditure in the soil T3SS Effector Proteins and Functions NopL: Key Determinant for Nodule Organogenesis Function: NopL is among the most critical T3SS effectors, particularly for B. elkanii USDA61 symbiosis with certain legume species (e.g., Vigna mungo). NopL-deleted mutants form infection threads on Vigna mungo roots but fail to establish nodules, indicating its essential role in nodule primordia formation NopL is exclusively conserved among Bradyrhizobium and Sinorhizobium genera, suggesting ancient evolutionary origin Phylogenetic analysis indicates NopL diverged from the canonical T3SS lineage, suggesting specialized symbiotic function Mechanism: NopL enters host cell nuclei and likely interacts with plant transcription factors Suppresses host immune responses that would otherwise block infection Triggers expression of early nodulation genes required for meristem initiation Bel2-5: NF-Independent Nodulation Effector Dual Functions: In some legumes (e.g., soybean nfr1 mutants), Bel2-5 can trigger nodulation independently of Nod factors In soybean carrying the Rj4 allele (dominant resistance gene), Bel2-5 acts as a virulence factor, triggering immune responses that prevent infection Structural Features: Contains ubiquitin-like protease (ULP) domain Two EAR (ethylene-responsive element-binding factor-associated amphiphilic repression) motifs for transcriptional regulation Nuclear localization signal (NLS) enabling entry into plant cell nuclei Internal repeat sequences with unknown function Shares structural similarity with XopD from the plant pathogen Xanthomonas campestris pv. vesicatoria Domain-Function Correlation: The C-terminal ULP domain and upstream regions are critical for Bel2-5-dependent nodulation phenotypes Mutations in EAR motifs abolish nodulation ability Deletion of NLS impairs nuclear targeting and symbiotic function InnB: Strain-Specific Symbiotic Modulator Host-Specific Effects: InnB promotes nodulation on Vigna mungo cultivars InnB restricts nodulation on Vigna radiata cv. KPS1 This differential phenotype reflects distinct recognition mechanisms in different legume species Expression and Localization: innB expression is flavonoid-dependent and TtsI-regulated InnB protein is secreted via T3SS and translocated into host cells Adenylate cyclase assays confirm T3SS-dependent translocation into nodule cells NopM: Ubiquitin Ligase Triggering Senescence Function: NopM triggers early senescence-like responses in incompatible hosts (e.g., Lotus species). Possesses E3 ubiquitin ligase domain and leucine-rich-repeat domain Acts similarly to PAMP-triggered immunity (PTI) and effector-triggered immunity (ETI) in pathogenic bacteria Mediates ubiquitination of host target proteins, leading to degradation and immune responses Results in browning of nodules and disrupted symbiosis Phylogenetic Conservation: NopM homologs are found in both pathogenic and symbiotic bacteria, highlighting the evolutionary relatedness of virulence and symbiotic mechanisms NopF: Infection Thread Inhibitor Role in Host Specificity: NopF triggers inhibition of infection thread formation in Lotus japonicus Gifu Represents a post-recognition checkpoint for host-pathogen compatibility Allows alternative legume accessions (L. burttii, L. japonicum MG-20) to proceed with symbiosis, despite presence of NopF NopP2: Fine-Tuning Symbiotic Efficiency Function: NopP2 fine-tunes symbiotic effectiveness with Vigna radiata. Located within the symbiotic island near the nif cluster Differential effects depending on host genotype and strain background Contributes to variable nodulation phenotypes among B. elkanii strains 4. Host Specificity and Rj Gene-Mediated Resistance The Rj Gene System in Soybean Soybean (Glycine max) possesses a dominant host resistance system controlled by Rj (Rejection) genes that restrict nodulation by specific Bradyrhizobium strains. Rj4 Gene: Encodes a thaumatin-like protein (TLP), a member of the pathogenesis-related (PR-5) protein family Structurally similar to plant anti-fungal proteins Restricts nodulation by many B. elkanii strains, particularly Type B strains (e.g., USDA61) Soybean cultivars carrying Rj4 are incompatible with B. elkanii but compatible with Bradyrhizobium diazoefficiens USDA110 Rj2 Gene: Encodes a TIR-NBS-LRR protein (Toll-interleukin receptor/nucleotide-binding site/leucine-rich repeat) Represents a receptor-like immune protein structurally similar to plant R proteins for pathogen resistance Critical amino acid I490 (isoleucine) in Rj2 determines incompatibility with Bradyrhizobium diazoefficiens USDA122 Restricts specific rhizobial strains but allows infection by compatible strains Rj3 Gene: Restricts B. elkanii Type B strains (e.g., BLY3-8, BLY6-1, USDA33) despite allowing nodulation by B. japonicum USDA110 T3SS and its effectors are critical for Rj3-mediated incompatibility Mutations in T3SS components (TtsI, RhcJ) overcome Rj3 restriction, confirming T3SS involvement Gene-for-Gene Model of Symbiotic Specificity The B. elkanii-soybean system exemplifies a gene-for-gene interaction: Bacterial avirulence gene (avr): T3SS effector genes (e.g., nopL, bel2-5, nopM) function as avirulence determinants Plant resistance gene (R): Soybean Rj genes encode receptors recognizing effector-triggered immune responses Incompatibility occurs when bacterial effector matches soybean R gene recognition specificity Compatibility requires bacterial effectors that evade or suppress Rj-mediated immunity 5. Infection and Nodule Development Infection Thread Formation Stages: Pre-infection: Nod factors bind to NFR1/NFR5 receptors on legume root epidermis, activating early symbiotic signaling Infection initiation: B. elkanii invades through root hair curling (Nod factor-dependent) or via crack entry (T3SS-dependent in certain genotypes) Intercellular infection: Bacteria travel through infection threads (wall-bound tubular structures) into the cortex Release and bacteroid formation: Bacteria are released into cortical cells and enclosed within plant-derived peribacteroid membranes Role of T3SS in Infection Nod factor-independent nodulation: B. elkanii T3SS effectors (particularly Bel2-5) can trigger nodulation of soybean nfr1 mutants lacking functional Nod factor receptors Infection thread progression: T3SS suppresses plant defense responses (ROS production, ethylene synthesis) that normally block infection thread elongation Bacterial release: T3SS effectors facilitate bacterial transition from infection threads into cortical cells for bacteroid development Nodule Organogenesis and Development Transcriptional Reprogramming: B. elkanii T3SS effectors and Nod factors activate soybean early nodulation genes: ENOD40, ENOD93, NIN (Nodule Inception), NSP1, NSP2 These plant genes activate meristem-like programs in cortical cells, initiating nodule primordia Coordinated T3E activity (NopL, Bel2-5, NopP2) is essential for primordia formation Nodule Maturation: Infected cells undergo endoreduplication (multiple rounds of DNA replication without cell division) Cortical cells expand to accommodate dividing bacterial cells Peribacteroid membranes establish nutrient exchange compartments Gibberellin Role: B. elkanii synthesizes gibberellin precursor (GA₉) via cytochrome P450 monooxygenase Host soybean expresses GA 3-oxidases (GA3ox) within nodules, converting GA₉ to bioactive GA₄ GA₄ regulates nodule size, influences meristem bifurcation, and modulates senescence Higher GA levels correlate with increased nodule size and bacterial progeny, providing selective advantage to GA-producing strains 6. Nitrogen Fixation Biochemistry Nitrogenase Enzyme Complex Components: Component I (MoFe protein): Contains molybdenum and iron clusters Component II (Fe protein): Contains iron-sulfur cluster; transfers electrons to Component I Electron donors: Bacteroid respiration provides reducing power; organic acids (malate, α-ketoglutarate) drive electron transport Catalytic Reaction:[ \text{N}_2 + 8 e^- + 16 \text{ATP} \to 2 \text{NH}_3 + \text{H}_2 + 16 \text{ADP} + 16 P_i ] Key Features: Requires strictly anaerobic conditions (oxygen sensitivity) Demands substantial ATP input (~16 molecules ATP per N₂ molecule fixed) B. elkanii bacteroids express oxygen-scavenging mechanisms including leghemoglobin synthesis Oxygen Management in Nodules Oxygen Gradient: Outer nodule layers maintain aerobic respiration for ATP generation Interior nodule zones remain anaerobic for nitrogenase activity B. elkanii respiration consumes oxygen in bacterial layers, maintaining hypoxia in nitrogenase-active compartments Oxygen-Protective Mechanisms: Leghemoglobin (plant-encoded, bacteroid-synthesized iron-containing protein) buffers oxygen at nanomolar levels, preventing nitrogenase inactivation Bacteroid differentiation produces enlarged, polyploid cells with reduced permeability to oxygen Expressed late nodulation proteins (Nols) contribute to oxygen protection Metabolic Integration Carbon-Nitrogen Balance: Host plants provide carbohydrates (photosynthetically-derived organic acids) to bacteroids B. elkanii oxidizes organic acids via citric acid cycle and electron transport chains, generating ATP and reducing equivalents for nitrogenase Efficient strains (e.g., B. elkanii USDA76) show higher enzyme levels for Nod factor synthesis and metabolic integration Ammonia Utilization: Ammonia fixed by nitrogenase is rapidly assimilated via glutamine synthetase (GS) in bacteroids However, much ammonia is excreted to host cells, where plants incorporate it into amino acids (glutamine, aspartate) Plant cells return nitrogen to bacteroids as amino acids and organic compounds, establishing exchange equilibrium 7. Regulatory Networks and Gene Expression NifA-RpoN Regulatory Circuit NifA: Sigma-54-dependent transcriptional activator controlling expression of nitrogen fixation (nif) and related genes Activates nifHDK genes encoding nitrogenase structural proteins Responsive to oxygen levels; activated under microoxic conditions characteristic of nodule interiors Coordinates temporal expression of nif genes with nodule development progression RpoN: Sigma-54 RNA polymerase recognizing NifA-bound promoters Directs transcription from nif promoters bearing NifA-binding sites Links nitrogen fixation gene expression to nodule maturation stage GlnR Regulatory Protein Function: Controls nitrogen assimilation genes and cross-talks with symbiotic signaling Represses genes for nitrogen scavenging (e.g., ABC transporters) when ammonia is abundant Releases repression when ammonia becomes limiting, activating alternative nitrogen acquisition pathways Prevents metabolic conflict during high nitrogen fixation rates AdeR (Adenine Deaminase Regulator) Role: Modulates purine metabolism and symbiotic efficiency Controls genes involved in nucleotide synthesis Adjusted expression enables rapid bacterial replication in nodules while supporting biosynthesis of symbiotic proteins 8. Comparative Genomics: Symbiotic Island Architecture Symbiotic Island Composition B. elkanii genomes contain low GC-content regions (symbiotic islands) harboring symbiosis-essential genes: Island A (Main symbiotic island): ~690 kb Contains nod cluster: nodABC, nodD, nodZ, regulatory sequences Contains nif cluster: nifHDK, nifENX, fixABCX Contains fix genes (flavoproteins, cytochromes) for electron transport Island B (Small region): ~4–44 kb Variable across strains; minimal genes Island C: ~200–518 kb Contains additional metabolic and regulatory genes Variable gene content among B. elkanii strains Lateral Gene Transfer and Evolutionary Plasticity Pangenome Analysis: Bradyrhizobium pangenome: 84,078 gene families across species Core genome: 824 genes (essential cell processes) Accessory genome: 42,409 genes (including symbiotic, metabolic, stress response functions) B. elkanii genomes are moderately stable compared to highly plastic genomes of some Sinorhizobium species Genetic Variations: SNPs and indels in symbiotic islands correlate with symbiotic phenotype differences Polymorphisms in nif, fix, and nodulation regulatory genes drive intraspecific variation Integrative conjugative elements (ICEs) facilitate horizontal transfer of symbiotic genes between Bradyrhizobium strains 9. Stress Response and Environmental Adaptation Osmotic Stress Tolerance Mechanisms: Production of exopolysaccharides (EPS) and trehalose Upregulation of osmolyte synthesis under salt stress Maintenance of cell membrane integrity under water deficit Acid-Soil Adaptation pH Tolerance: Many B. elkanii strains tolerate pH 4.5–6.5, though optimal nodulation occurs at pH 6.0–7.5 Expression of acid-tolerance proteins enables survival in acidic soils Selection pressure in Brazilian Cerrado soils (naturally acidic) has generated acid-adapted B. elkanii strains Mode of Action Step-by-Step Nodulation Process Phase 1: Recognition and Signaling (Hours 0–12) Host root exudation of flavonoids B. elkanii perception and chemotaxis toward root Activation of nod gene transcription via NodD-flavonoid interaction Synthesis and secretion of Nod factors Nod factor recognition by plant NFR1/NFR5 receptors Initiation of early nodulation gene expression in plant Phase 2: Infection (Days 1–3) Root hair curling and bacterial microcolony formation Infection thread invasion through root epidermis T3SS-mediated suppression of plant defense responses Intercellular infection thread progression toward cortex Bacterial translocation into cortical cells Phase 3: Nodule Organogenesis (Days 3–7) Induction of cortical cell mitosis (meristem activation) Differentiation of nodule tissues (vascular bundle, infection zone) Bacterial release from infection threads Formation of peribacteroid membranes Nodule structure maturation Phase 4: Bacteroid Differentiation and Nitrogen Fixation (Days 7–21) B. elkanii endoreduplication and morphological differentiation Expression of nitrogenase (nif) and iron-sulfur cluster synthesis genes Establishment of microaerobic environment Initiation of nitrogen fixation Nitrogen transfer to host plant Phase 5: Sustained Symbiosis (Weeks 3–Harvest) Peak nitrogen fixation rates Continuous nitrogen supply to plant Bacterial maintenance and reproduction within nodules Age-dependent nodule senescence in late pod-fill stages Additional Info Recommended Crops: Cereals, Millets, Pulses, Oilseeds, Fibre Crops, Sugar Crops, Forage Crops, Plantation crops, Vegetables, Fruits, Spices, Flowers, Medicinal crops, Aromatic Crops, Orchards, and Ornamentals. Compatibility: Compatible with Bio Pesticides, Bio Fertilizers, and Plant growth hormones but not with chemical fertilizers and chemical pesticides. Shelf Life: Stable within 1 year from the date of manufacturing. Packing: We offer tailor-made packaging as per customers' requirements. Dosage & Application Crop Recommendations and Compatibility Compatible Legumes for B. elkanii Primary Hosts: Soybean (Glycine max) – highest efficiency and most extensively studied Peanut (Arachis hypogaea) – excellent nodulation; SEMIA 6144 strain widely used Mung Bean (Vigna radiata) – strain-dependent compatibility (USDA61 is incompatible with some cultivars) Black-Eyed Pea (Vigna unguiculata) – variable efficiency depending on strain Secondary Hosts (with strain-specific compatibility): Groundnut (Arachis hypogaea) Yard-long Bean (Vigna unguiculata subsp. sesquipedalis) Black Gram (Vigna mungo) – USDA61 strain shows exceptional specificity Broad Host Range (Associated Legumes): Various Vigna species Certain Vicia species Select native legume species Non-Host Associations (Growth Promotion Without Nodulation) B. elkanii can colonize grass roots and promote growth through: Production of plant growth hormones (IAA, gibberellins) Enhanced root development and mineral uptake Demonstrated effects on: white oats, black oats, ryegrass Associated References: Similar to Paenibacillus azotofixans, which also promotes non-legume growth through PGPR mechanisms, B. elkanii exhibits plant growth-promoting properties beyond nodulation. Compatibility with Agricultural Inputs Input Type Compatibility Notes Bio-Pesticides Compatible Use with caution; avoid simultaneous application with broad-spectrum fungicides Bio-Fertilizers Compatible Synergistic effects with phosphate-solubilizing bacteria (PSB) observed Plant Growth Hormones Compatible Enhanced effects when combined with IAA or gibberellin-producing organisms Chemical Fertilizers Incompatible Avoid high rates of urea; inhibit nodule formation and nitrogen fixation Fungicides (Broad-Spectrum) Incompatible Fungicides reduce bacterial viability; use selective agents or pre-inoculation strategies Herbicides Compatible (Selective) Most herbicides compatible; avoid herbicides with antimicrobial activity Insecticides Compatible (Most) Compatibility varies by class; pyrethroids and neonicotinoids generally safe Shelf Life and Storage Shelf Life: Stable for up to 1 year from manufacturing date under proper conditions Storage Temperature: Cool, dry conditions; maintain 4–15°C for extended viability Light Protection: Store away from direct sunlight (UV light reduces viability) Humidity: Keep in sealed containers to prevent moisture loss Monitoring: Check for discoloration, odor, or contamination before use; discard if compromised Dosage and Application Methods Seed Coating/Seed Treatment Protocol: Prepare slurry: Mix 10 g of Bradyrhizobium elkanii with 10 g crude sugar in sufficient water Coat 1 kg of seeds evenly with slurry mixture Dry coated seeds in shade before sowing (allow 2–3 hours) Sow treated seeds immediately or store in cool, dry conditions for up to 60–90 days (viability maintained with proper storage) Advantages: Simple, cost-effective, ensures bacterium-seed contact, minimal equipment Seedling Treatment (Nursery Application) Protocol: Mix 100 g of Bradyrhizobium elkanii with sufficient water Dip seedling roots into inoculant slurry for 5–10 minutes Transplant seedlings into field immediately Applications: Nursery-raised legumes (peanut, some vegetables); labor-intensive but ensures high infection rates Soil Application (Broadcasting) Protocol: Mix 3–5 kg per acre of Bradyrhizobium elkanii with organic manure or vermicompost Distribute mixture uniformly across field during land preparation Incorporate into soil by plowing or harrowing 2–3 weeks before sowing Alternatively, apply close to seeding for rapid root colonization Advantages: Builds soil population; benefits residual inoculum for crop rotations Rate: 3–5 kg/acre optimal for establishment of ~10⁷–10⁸ CFU/g soil Irrigation/Fertigation Application Protocol: Mix 3 kg per acre of Bradyrhizobium elkanii in water (1:10 ratio) Pass through 100-mesh filter to remove particles Apply via drip lines or sprinkler irrigation system Best applied in evening to reduce UV exposure Advantages: Reaches established root systems; applicable post-emergence; supports nodule maintenance Timing: Early vegetative stages (V2–V4) for maximum nodule formation FAQ General Biology and Function What makes Bradyrhizobium elkanii different from free-living nitrogen fixers like Paenibacillus azotofixans? Bradyrhizobium elkanii is a symbiotic nitrogen fixer that forms intimate associations with legume roots and establishes specialized nitrogen-fixing nodules. In contrast, Paenibacillus azotofixans is a free-living nitrogen fixer that operates independently in soil without forming nodules. B. elkanii achieves higher nitrogen fixation rates (100–300 kg N/ha/season) through symbiotic cooperation with host plants, whereas P. azotofixans supplies more modest benefits (20–50 kg N/ha depending on conditions). B. elkanii cannot infect non-legume hosts, while P. azotofixans benefits a broad range of crop species through general PGPR mechanisms. For legume cultivation, B. elkanii is the preferred choice due to superior nitrogen fixation efficiency. How does Bradyrhizobium elkanii survive in different soil conditions? B. elkanii survives through multiple strategies. As a non-spore-forming bacterium, it depends on competitive fitness and metabolic flexibility rather than dormancy. B. elkanii tolerates: Acidic soils (pH 4.5–6.5): Acid-adapted strains (e.g., from Brazilian Cerrado) have evolved acid-tolerance proteins Drought: Produces exopolysaccharides (EPS) and osmolytes for osmotic balance Salinity: Synthesizes antioxidant molecules and ionic homeostasis proteins Temperature fluctuations: Expresses heat-shock proteins and cold-adaptation proteins Nutrient starvation: Metabolic versatility supports survival on minimal carbon and nitrogen sources Survival in soils is enhanced by host plant association, which supplies carbohydrates and maintains favorable microenvironments within root nodules. Can Bradyrhizobium species work synergistically with other soil bacteria? Yes, synergistic effects are well-documented: Phosphate-solubilizing bacteria (PSB): Co-inoculation with PSB (e.g., Bacillus megaterium) enhances phosphorus availability, improving B. elkanii nodule formation and nitrogen fixation Azospirillum species: Co-inoculation of B. elkanii with Azospirillum brasilense produces superior soybean growth through complementary IAA production; IAA stimulates root growth, improving rhizobial infection Bacillus subtilis: Co-inoculation in saline-alkali soils increased soybean yield by 18% compared to B. elkanii alone Biofilm formation: In consortia, rhizobia establish biofilms on root surfaces, enhancing competition with native rhizobia and pathogenic microbes What is the optimal soybean genotype for B. elkanii nodulation? Optimal genotypes depend on strain compatibility with soybean Rj genes: Best compatibility: Non-Rj genotypes and Rj4-gene carriers (with compatible B. elkanii strains, but not USDA61) Poor compatibility: Rj3-genotype cultivars generally incompatible with B. elkanii Type B strains Strain-specific: B. elkanii strains vary in effectiveness with different cultivars USDA76, SEMIA 587, SEMIA 5019: Good nodulation on most soybean genotypes USDA61: Excellent on soybean but incompatible with Rj4 genotypes Elite strains (e.g., ESA 123): Superior performance in drylands Recommendation: For maximum nitrogen fixation, select cultivars without restrictive Rj genes and pair with adapted strain Agricultural Applications and Management Which crops benefit most from Bradyrhizobium elkanii application? All legume crops benefit, but effectiveness varies: Highest benefit: Soybean, peanut, mung bean (90–300 kg N/ha fixation) Good benefit: Black-eyed pea, groundnut, yard-long bean (100–200 kg N/ha) Situational benefit: Native legumes, forage legumes (highly variable) No benefit: Non-legume crops (though limited growth promotion observed with some grasses) Factors maximizing benefit: Presence of native rhizobial population <10⁴ CFU/g soil Absence of antagonistic soil microbes Compatible soybean genotype (for soybean) Adequate soil pH (5.5–7.5) Highest ROI crops: Soybean in virgin soils; peanut in semi-arid regions with drought-adapted strains How quickly can farmers expect to see results from Bradyrhizobium elkanii inoculation? Timeline: 1–2 weeks post-inoculation: Infection thread formation; root colonization progresses 2–4 weeks: Visible nodule appearance; initiation of nitrogen fixation 4–8 weeks: Peak nodulation and nitrogen fixation rates established 8–16 weeks (R1–R5 stages in soybean): Cumulative nitrogen benefit becomes apparent in plant biomass Harvest: Final yield difference becomes quantifiable Field observations: Early-inoculated plants show accelerated growth compared to uninoculated controls Root development superior within 3–4 weeks Leaf color and vigor improvements evident by 6–8 weeks Yield increase: 5–60% depending on initial soil population and environmental conditions Maximum benefit: Observed at crop maturity; early-season nodulation establishes sustained nitrogen supply for pod fill and grain development Is Bradyrhizobium elkanii compatible with other agricultural inputs? Compatibility Summary: ✓ Bio-pesticides: Compatible (exclude broad-spectrum fungicides) ✓ Bio-fertilizers & PSB: Highly compatible; synergistic effects ✓ Plant hormones (IAA, GA): Compatible; enhanced effects ✓ Herbicides: Most compatible; avoid antimicrobial formulations ✗ Chemical fertilizers: High nitrogen rates inhibit nodulation ✗ Broad-spectrum fungicides: Lethal to B. elkanii; use selective or post-inoculation application ✗ Chemical nematicides: Many reduce viability Recommendation: Apply B. elkanii as early as possible (seed or pre-plant soil); avoid fungicides during first 4–6 weeks post-inoculation. Nitrogen fertilizers should be minimal (<50 kg N/ha) to avoid suppression of nitrogen fixation. Environmental Impact and Sustainability Does Bradyrhizobium elkanii have any environmental risks? Safety Profile: Naturally occurring soil bacterium; non-pathogenic to plants and animals No environmental accumulation; subject to normal soil microbial turnover Approved for organic farming systems (non-GMO) Reduces synthetic fertilizer use, thereby lowering greenhouse gas emissions Environmental Benefits: Replaces ~100–300 kg N/ha of synthetic fertilizer per crop season Synthetic fertilizer production accounts for ~2% of global energy use; B. elkanii reduces this footprint Decreases soil contamination risk from excess nitrate leaching Improves soil carbon sequestration through enhanced root exudation and organic matter Potential concerns (minimal): If non-competitive strains displace native rhizobia (rare; native populations typically recover) Nodule senescence releases carbon; however, net soil carbon often increases due to residual legume biomass Overall: B. elkanii inoculation is environmentally sound and beneficial to soil ecosystems How does Bradyrhizobium elkanii contribute to sustainable farming? Sustainability Contributions: Nitrogen cycle restoration: Reduces dependence on Haber-Bosch synthetic nitrogen Soil health: Improves biological activity, organic matter, and aggregate stability Crop rotation benefits: Legume crops (with B. elkanii) replenish nitrogen for subsequent cereal crops; reduces fertilizer for following season by 30–50% Carbon footprint reduction: Avoids emissions from fertilizer production (~0.5 kg CO₂ per kg N eliminated) Resilience to climate variability: Nitrogen fixation continues under drought (strain-dependent) better than relying on soil nitrogen pools Economic sustainability: Inoculant cost (~$2–5 per hectare) << synthetic nitrogen fertilizer cost (~$15–40 per hectare) Broader implications: Integration of B. elkanii inoculation into farming systems supports UN Sustainable Development Goal 12 (Responsible Consumption and Production) and Goal 13 (Climate Action) Can Bradyrhizobium elkanii help with climate change mitigation? Direct contributions: Reduced N₂O emissions: Elite strains carrying N₂O reductase (nos genes) reduce soil N₂O emissions by ~70% compared to standard strains Fertilizer reduction: Each kilogram of synthetic nitrogen avoided saves ~5 kg CO₂ equivalent from production and transport Soil carbon sequestration: Enhanced root exudation and legume residue decomposition increases soil carbon stocks Example calculation: Soybean field (50 ha) with B. elkanii inoculation Replaces 100 kg N/ha with biological fixation Avoids: 5,000 kg CO₂ equivalent (from fertilizer production), 100 kg N₂O equivalent (20 kg CO₂ equivalent), 250 kg CO₂ (from transport/application) Total mitigation: ~5,370 kg CO₂ equivalent per season Product Selection and Application Strategies How should Bradyrhizobium elkanii products be stored? Storage Conditions: Temperature: 4–15°C (cool, dry storage) Light: Darkness (UV light reduces viability by ~50% per week) Humidity: Sealed containers; humidity <70% Duration: Up to 1 year from manufacturing date Storage best practices: Keep in original sealed containers Store in dedicated cool storage (not with agrochemicals or fertilizers) Avoid direct sunlight, heat exposure Do not refrigerate below 4°C (cold stress reduces viability) Check for discoloration, foul odor, or contamination before use Discard products exceeding shelf life or showing signs of degradation Pre-application checks: Verify CFU concentration (should be ≥10⁸ CFU/g) Confirm expiration date Check for clumping or separation (sign of degradation) What is the optimal application timing for Bradyrhizobium elkanii? Timing Strategy: Best: Seed treatment 3–14 days before sowing (allows infection thread formation before water stress from germination) Good: At-planting seed treatment (simultaneous with sowing) Acceptable: Soil application 2–3 weeks before sowing (establishes soil population) Last resort: Early V2–V4 application (later than ideal but still effective) Seasonal considerations: Spring planting: Warmer soils favor infection; apply when soil temperature ≥15°C Monsoon crops: Ensure good soil drainage; waterlogged soils reduce nodulation Dry seasons: Apply post-irrigation or pre-monsoon for optimal soil moisture Sequential plantings: If crop residue is retained (no-till), residual soil population often supports second-year crops; re-inoculation beneficial only if populations fall below 10⁴ CFU/g soil Can organic farmers use Bradyrhizobium elkanii? Organic Certification Status: Yes, fully approved for certified organic production Bradyrhizobium elkanii is a naturally occurring, non-GMO soil bacterium Meets IFOAM (International Federation of Organic Agriculture Movements) standards Complies with organic certification requirements (USDA National Organic Program, EU Organic Regulation, others) Organic system benefits: Eliminates synthetic nitrogen fertilizer requirement Supports crop rotation strategies Improves soil biological diversity Aligns with organic philosophy of biological nutrient cycling Recommendations for organic farmers: Use seed treatments rather than synthetic fungicide combinations Apply biological inoculants early (seed or pre-plant) Avoid synthetic fungicides during critical nodulation period (first 4–6 weeks) Incorporate into comprehensive organic management (crop rotation, adequate organic matter, proper pH) Connecting B. elkanii and P. azotofixans While Bradyrhizobium elkanii and Paenibacillus azotofixans represent distinct nitrogen-fixing strategies, both contribute to agricultural sustainability: Characteristic B. elkanii P. azotofixans Nitrogen fixation strategy Symbiotic (nodulation) Free-living soil Host range Legumes (highly specific) Broad host range (all crops) Nitrogen contribution 100–300 kg N/ha/season 20–50 kg N/ha/season Nodule formation Yes; essential No PGPR functions Limited (nodulation-focused) Multiple (IAA, GA, biocontrol) Best use Legume crops Non-legumes and supplementary legume inoculation Interaction Can compete for nodule occupancy Complementary; enhances B. elkanii effectiveness via IAA production Integrated Approach: In diversified farming systems, B. elkanii inoculant for legume crops followed by P. azotofixans for non-legume crops creates a comprehensive biological nitrogen management strategy. Conclusion Bradyrhizobium elkanii represents a cornerstone microorganism for sustainable legume production. Its sophisticated molecular mechanisms for host recognition, infection, and nitrogen fixation, combined with practical agricultural benefits, make it indispensable for modern sustainable agriculture. With proper strain selection, timing, and integration with complementary practices, B. elkanii inoculation can significantly improve crop yields, reduce fertilizer dependency, and enhance soil health across diverse agroecosystems. Related Products Acetobacter xylinum Azospirillum brasilense Azospirillum lipoferum Azospirillum spp. Azotobacter vinelandii Beijerinckia indica Bradyrhizobium japonicum Gluconacetobacter diazotrophicus More Products Resources Read all
- Bio Manna - Biofertilizer Manufacturer & Exporter | Indogulf BioAg
Bio-Manna is a diluent to activate MICROM, to enhance the performance of the Biofertiliser product. Suppliers & Manufacturers USA. PRODUCT OVERVIEW Bio-Manna is an organic manure produced through decomposition of selected biomass, in a scientific manner with naturally occurring beneficial bacteria for effective Nitrogen / Phosphorus fiing. Additionally, the product is enriched with readily accessible Micro & Macro Nutrients for the better Root & Shoot Growth of the plant. Composition Bio-Manna is in the form of concentrated Organic liquid combines Readily accessible nutrients like N,P,K, Mg, Ca, S B, Fe, Mo, Zn, Mn, Cu fortified with Nitrogen / Phosphorus fixing Bacteria and essential enzymes. Contains only ORGANIC SUBSTANCES Features Improves Soil Fertility Beneficial in fruit production Acts as plant tonic Supports insect control Dosage and method of Application Dosage : 12 Litres / Hectare. Drip System : Take 12 Litres of Bio Manna and mix thoroughly with plain water and apply drip area planting 1 hectare. Apply once at planting and again at flowering stage. Drenching System : Apply Bio Manna drop wise to the main source of water for Planting. Let normal water up to 10 minutes and then start the soaked BIO-MANNA. Shelf Life & Packaging Shelf life: Best before 24 months, Stored at room temperature. Packaging: 1 Litre bottle To know more about organic fertilizers visit soil fertilizers . The advantages of using cover crops to protect the soil and produce bio-manure are known to be many: nutrient scavenging in poor soils, soil protection from erosion, nitrogen fixation (can’t get enough legumes in a garden, can’t you?), [Read more ] Downloads Product Information Label Information Click here for Product Enquiry Related Articles Understanding the Carbon-to-nitrogen ratio (C:N) One of the beautiful aspects of organic agriculture (and regenerative agriculture in particular) is that it’s not magic: it’s a comprehensive, widely different approach to growing food that’s based on the central pillar of organic fertilization. It’s backed by hundreds of thousands of studies in the fields of biology, chemistry, ecology, economics, management, and even history (to document traditional knowledge in techniques as useful as forest gardening). And, at the root of Five Edible Cover Crops that Provide Food While Building the Soil The advantages of using cover crops to protect the soil and produce green manure are known to be many: nutrient scavenging in poor soils, soil protection from erosion, nitrogen fixation ( can’t get enough legumes in a garden, can’t you? ), generation of organic matter to incorporate it into the soil and weed control, among several others. But could these crops also be more like mainstream crops, a source of food? Theoretically, all cover crops should be cut down and used (ei How beneficial bacteria help legumes fix nitrogen into the soil Ever wondered why every organic gardener tells you that you should plant leguminous plants in association with others? Or that you should... 1 2
- Aquamin Manufacturer & Exporter | Direct fed Microbials for Aquaculture | Indogulf BioAg
< Animal Health Aquamin Aquamin is a specialized multi-mineral aquatic feed that is used for treating fishes & shrimps. It helps greatly in inducing moulting and maintains equilibrium in osmoregulation. Overall improvement in growth and survival rates of the treated fish. Product Enquiry Benefits Improves Moulting and Growth in Crustaceans Aids in proper moulting and supports shell development through an optimal mineral balance, improving growth and reducing deformities. Prevents Mineral Deficiencies and Health Issues Supplies essential minerals, nutrients, and amino acids required by fish and shrimp, helping to prevent loose shell, white muscle, muscle cramp, and imbalances in shell hardness. Strengthens Immunity and Osmoregulation Enhances immune response and supports a stable osmoregulation mechanism, helping aquatic species adapt to environmental fluctuations more effectively. Enhances Pond Productivity and Water Quality Optimizes feed conversion ratio, enriches both primary and secondary productivity, and helps maintain the ideal pH level in pond water to maximize overall aquaculture output. Component Amount per 100g Calcium 20% Phosphorus 12% Choline Chloride 1% Magnesium 5% Copper 0.10% Zinc 0.80% Manganese 0.12% Iodine 0.03% Iron 0.40% Cobalt 0.01% Selenium 0.00% Probiotics 3.5g Excipients add 100g Composition Dosage & Application Additional Info Dosage & Application Content coming soon! Additional Info Content coming soon! Related Products Piscicare Livcare Aquatract Aqua Energy Aqua Pro Probio Aqua More Products Resources Read all







