Crops are exposed to various environmental stresses that inhibit their growth and diminish crop productivity globally.
Plant biostimulants are substances/microorganisms adjusted to plants to improve their ability to absorb nutrients, withstand extreme conditions, and enhance crop quality traits.
Benefits of using microbial formulas containing Bacillus spp.:
- have metabolic and genetic diversity for significant adaptation to environmental conditions,
- more effectively produce metabolites and form resilient spores,
- develop tolerance to abiotic stresses,
- fast growth rate and facilitated colonisation in the rhizosphere.
Mechanisms of Bacillus plant growth promotion:
- improvement of the availability of nutrients,
- effect on the release of root exudates, such as ACC deaminase,
- effect on plant growth-stimulating phytohormones metabolism,
- release of antimicrobial compounds, hydrolytic enzymes, and siderophores,
- reduced toxicity of the soil pollutants,
- improvement of natural defence against pathogens.
The incorporation of Bacillus spp. in cropping systems is an effective and environmentally friendly strategy for sustainable agriculture.
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