Bacillus arayabhattai

B. arayabhattai is a beneficial soil bacterium known for its role as a PGPB, promoting plant growth and enhancing resilience to various stresses. It contributes to nutrient cycling through processes like nitrogen fixation and phosphate solubilization, improving nutrient availability to plants. Additionally, B. arayabhattai produces plant growth-promoting hormones such as auxins and gibberellins, which stimulate root and shoot development. This bacterium also boosts plant tolerance to abiotic stresses like drought and salinity, while suppressing the growth of harmful pathogens through its antimicrobial properties. Its use in agriculture supports sustainable farming by reducing the reliance on chemical fertilizers and pesticides.

ICGEB transfers naturally occurring strains, genetically characterized through genome sequencing to confirm the absence of pathogenic traits or any characteristics that could be harmful to human, animal, or environmental health.

The plant growth-promoting activity of B. aryabhattai was first reported in 2012, demonstrating its ability to enhance the growth of Xanthium italicum. More recently, zinc-solubilizing strains of B. aryabhattai have been shown to improve soybean and wheat growth by increasing zinc mobilization and biofortification. Additionally, B. aryabhattai strains are physiologically versatile in their plant growth-promoting activities.

B. arayabhattai is known for its plant growth-promoting properties, including phosphate solubilization, nitrogen fixation, and phytohormone production. It also enhances plant tolerance to abiotic stresses such as drought and salinity, making it useful as a biostimulant and biofertilizer in sustainable agriculture.