Bacillus mesentericus (now known as Bacillus subtilis) is not known to directly affect, limit, or inhibit the nitrification process. Nitrification is the biological process by which ammonia is converted to nitrate and then to nitrite by specific groups of microorganisms.
Bacillus subtilis is a Gram-positive, aerobic bacterium that is commonly found in soil and has various beneficial roles in agriculture and biotechnology. However, it is not typically associated with nitrification processes.