Question

Which bacteria is used as biopesticide first on the commercial scale in the world

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

Answer 1

The correct option is A Bacillus thuringiensis

Bacillus thuringiensis is a bacterium that was used as a pesticide for the first time on a commercial basis. It was used to produce Bt-cotton which was cotton bollworm resistant variety of cotton. Here, Bt stands for Bacillus thuringiensis , a soil bacterium from which the Bt gene (encoding Bt toxin) has been obtained.

So, the correct answer is 'Bacillus thuringiensis'.