Question

Which one of the following organisms is NOT used as biocontrol agent?

• A. Bacillus sphaericus
• B. Trichoderma viride
• C. Bacillus thuringiensis
• D. Bacillus subtilis

Answer 1

The correct option is D Bacillus subtilis

Bacillus subtilis is a Gram-positive bacterium which is commonly used in the fermentation processes. The bacterium is used for the production of antibiotic, subtilin which is similar to nisin. The bacterium also produces protein digesting enzyme subtilisin. The bacteria is commonly present in the food which is consumed as prebiotic. The bacterium is not used as a biocontrol agent.

Thus, the correct answer is option D.