What is the role of the alkaline pH of the gut in the activation of Bt toxin?
What is the role of the alkaline pH of the gut in the activation of Bt toxin?
It solubilizes the crystals
It causes cell swelling and lysis
It converts inactive toxin into active form
Both A) and C)
Solution
Actually, the Bt toxin protein exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilize the crystals.