Bacillus thuringiensis | 農藥合法資訊網

Bacillusthuringiensis(Bt),soil-dwellingbacteriumthatnaturallyproducesatoxinthatisfataltocertainherbivorousinsects.ThetoxinproducedbyBacillus ...

Bacillus thuringiensis (Bt), soil-dwelling bacterium[1] that naturally produces a toxin[2] that is fatal to certain herbivorous insects. The toxin produced by Bacillus thuringiensis (Bt) has been used as an insecticide[3] spray since the 1920s and is commonly used in organic farming[4]. Bt is also the source of the genes used to genetically modify[5] a number of food crops so that they produce the toxin on their own to deter[6] various insect pests. The toxin is lethal to several orders of insects, including Lepidoptera[7] (butterflies[8], moths[9], and skippers[10]), Diptera[11] (flies[12]), and Coleoptera[13] (beetles), though a number of Bt strains are available to make its use more target-specific.

Bt was firs...