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

Bacillus thuringiensis

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E.coli

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Pseudomonas aeruginosa

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Agrobacterium tumefaciens

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Solution

The correct option is B 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 option is option A.

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