[Home]Bt corn

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Bt corn is a variant of corn, genetically altered by methods of biotechnology to become poisonous for insects. This was achieved by inserting a gene from the soil-dwelling microorganism Bacillus thuringiensis (thus Bt) into the corn genome. This gene codes for a toxin? that will crystallize? in the [digestive tract]? of insect larva?e, leading to its starvation.

While announced as an outstanding example for "green" biotechnology by the industry, a study from Cornell University in New York suggested that Bt corn might be poisonous to [monarch butterfly]? larvae. Later studies showed that the extreme conditions of the study could not really occur in nature. (I think this is correct? Anybody?)

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Last edited October 28, 2001 5:55 am by Magnus Manske (diff)