Bacillus subtilis subsp. subtilis NCIB 3610 = ATCC 6051 = DSM 10

Bacillus subtilis subsp. subtilis NCIB 3610, also known as ATCC 6051 and DSM 10, is a Gram-positive, rod-shaped bacterium that is classified as mesophilic, with an optimal growth temperature of 25°C. This strain is facultatively anaerobic, indicating that it can grow in both the presence and absence of oxygen. B. subtilis NCIB 3610 is motile, possessing flagella that enable movement. This bacterium has a single membrane and a single replicon, characteristic features that contribute to its cellular organization. B. subtilis is notable for its ability to undergo sporulation, allowing it to form resilient spores that can endure adverse environmental conditions. As a free-living organism, it is associated with various habitats, including soil and decaying organic matter, where it plays a vital role in nutrient cycling. The ecological significance of B. subtilis NCIB 3610 lies in its biotic relationship with its environment. Its ability to sporulate and thrive in varying oxygen conditions facilitates its survival in diverse ecosystems. This adaptability enhances its role in soil health and plant growth promotion, as it can contribute to the decomposition of organic materials and the overall fertility of its habitat. Furthermore, the presence of B. subtilis in agricultural systems may provide benefits such as suppressing plant pathogens and promoting beneficial plant-microbe interactions.