vegetative insecticidal proteins

Bacillus thuringiensis is a gram-positive, spore-forming bacterium capable of producing a number of toxins, including insecticidal endotoxins, exotoxins, chitinase, vegetative insecticidal proteins (VIPs) and proteases, with toxicity to several insect orders, nematodes, mites and protozoa.
蘇云金芽孢桿菌(Bacillus thuringiensis，Bt)是一種革蘭氏陽性產(chǎn)孢細菌，能形成殺蟲晶體蛋白、外毒素、幾丁質(zhì)酶、營養(yǎng)期殺蟲蛋白和蛋白酶等多種毒素，對多種昆蟲以及線蟲、螨類和原生動物都有活性。