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In case of Bt Cotton how does the toxic insecticide protein produced by bacterium kill the insect pest but not the cells of Bacillus thuringiensis where the toxic protein is generated ? |
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Answer» The toxin produced by Bacillus thuringiensis is an endotoxin called cry protein. It is crystalline and non toxic when formed being in protoxin stage. As it reaches the gut of insects, the cry protein is converted into toxic ‘ and soluble state. It attaches the receptors present on the epithelial cells of the gut produces pores and kills the cells resulting in death of the insects. |
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