Compatible three-strain halophilic plant growth-promoting bacterial (HPGPB) consortium comprising Halobacillus marinus MKM3, Halobacillus halophilus MKM4, and Halobacillus halophilus MKM11 applied to black gram (Vigna mungo L. varieties VBN8 and VBN11) under 50 and 100 mM NaCl stress. The consortium improves ionic balance, reduces Na+ accumulation and lipid peroxidation, enhances antioxidant enzyme activities, and increases grain yield by up to 38% under saline greenhouse conditions.
Taxonomy
| Taxon | Ontology ID | Functional Roles | Abundance |
|---|---|---|---|
| Halobacillus marinus MKM3 — ontology label: Halobacillus marinus | NCBITaxon:2699466 · TaxonMech · TraitMech |
SYNTROPHIC_PARTNER
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DOMINANT |
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| Halobacillus halophilus MKM4 and MKM11 — ontology label: Halobacillus halophilus | NCBITaxon:1570 · TaxonMech · TraitMech |
SYNTROPHIC_PARTNER
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DOMINANT |
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Ecological Interactions
The graph shows only explicitly linked interaction participants. Community members without an asserted participant link are omitted; membership alone does not imply an interaction.
Synergistic Halobacillus Consortium Colonization and Rhizosphere Microbiome Restructuring
MUTUALISMCo-inoculation of compatible halophilic strains Halobacillus marinus MKM3 and Halobacillus halophilus MKM4 and MKM11 reshapes the saline rhizosphere microbial community structure of black gram (Vigna mungo).
Source Taxon: Halobacillus marinus MKM3
Target Taxon: Halobacillus halophilus MKM4 and MKM11
Biological Processes:
- response to salt stress (GO:0009651 · PathwayMech)
DIRECTLY IMPLIED: Consortium establishment in the saline rhizosphere supports reduced Na+ uptake and enhanced antioxidant protection in Vigna mungo.
Evidence
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PMID:42643757 - SUPPORT (IN_VIVO)"Rhizosphere metagenomic analysis revealed consortium-associated shifts in microbial community structure under saline conditions."
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PMID:42643757 - SUPPORT (IN_VIVO)"Collectively, the results demonstrate that the HPGPB consortium enhances salinity tolerance through coordinated physiological, biochemical, and microbiome-associated mechanisms."
Alleviation of Sodium Toxicity and Enhancement of Antioxidant Defense Under Salt Stress
MUTUALISMInoculation of Vigna mungo with the Halobacillus consortium under 50 and 100 mM NaCl stress reduces Na+ accumulation and malondialdehyde levels while increasing antioxidant enzyme activities, nutrient uptake, and photosynthetic performance.
Source Taxon: Halobacillus halophilus MKM4 and MKM11
Target Taxon: Halobacillus marinus MKM3
Metabolites: sodium(1+) (CHEBI:29101 · MediaIngredientMech · CMMMech)
Biological Processes:
- response to salt stress (GO:0009651 · PathwayMech)
- response to oxidative stress (GO:0006979 · PathwayMech)
DIRECTLY IMPLIED: Reduced Na+ toxicity, lower lipid peroxidation, and improved photosynthetic and ionic balance support increased root development, plant biomass, and grain yield under salt stress.
Evidence
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PMID:42643757 - SUPPORT (IN_VIVO)"Consortium-inoculated plants exhibited improved photosynthetic performance, enhanced nutrient uptake and ionic balance, reduced Na+ accumulation and malondialdehyde content, and increased activities of antioxidant enzymes, indicating enhanced salinity tolerance."
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PMID:42643757 - SUPPORT (IN_VIVO)"Consortium inoculation effectively mitigated these adverse effects by improving plant height, root development, biomass, and grain yield by up to 46 and 38%, respectively, under saline conditions."
Enhancement of Black Gram Root Development, Biomass, and Grain Yield Under Saline Stress
MUTUALISMUnder 50 and 100 mM NaCl stress, inoculation with the Halobacillus consortium mitigates salt-induced growth inhibition and increases plant height, root development, biomass, and grain yield by up to 46% and 38%.
Source Taxon: Halobacillus marinus MKM3
Target Taxon: Halobacillus halophilus MKM4 and MKM11
Biological Processes:
- response to salt stress (GO:0009651 · PathwayMech)
Evidence
-
PMID:42643757 - SUPPORT (IN_VIVO)"Consortium inoculation effectively mitigated these adverse effects by improving plant height, root development, biomass, and grain yield by up to 46 and 38%, respectively, under saline conditions."
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