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.
苏云金芽孢杆菌(Bacillus thuringiensis，Bt)是一种革兰氏阳性产孢细菌，能形成杀虫晶体蛋白、外毒素、几丁质酶、营养期杀虫蛋白和蛋白酶等多种毒素，对多种昆虫以及线虫、螨类和原生动物都有活性。