Question

Which bacteria was used as biopesticide, for the first time on the commercial scale in the world?

• A. Bacillus thuringiensis
• B. Escherichia coli
• C. Pseudomonas aeruginosa
• D. Agrobacterium tumefaciens

Answer 1

The correct option is A Bacillus thuringiensis

Bacillus thuringiensis is a Gram-positive, soil-dwelling bacterium. It is commonly used as a biological pesticide. It is the first used biopesticide in the world. The organism contains cry gene which produces toxin. The toxin gets activated in the gut of the pests and then kills the larvae of the pests which feeds on the leaves of the plants introduced with this gene.

Thus, the correct answer is option A.