Definitions for "Bt crops"
Bt stands for Bacillus thuringiensis, a bio-toxin derived from soil bacterium. The Bt-toxin gene can be 'engineered' into plants (such as Bt cotton) to kill specific insects.
Crops that are genetically engineered to carry a gene from the soil bacterium Bacillus thuringiensis (Bt). The bacterium produces proteins that are toxic to some pests but non-toxic to humans and other mammals. Crops containing the Bt gene are able to produce this toxin, thereby providing protection for the plant. Bt corn and Bt cotton are examples of commercially available Bt crops.
Crops that are genetically engineered to carry the gene from the soil bacterium Bacillus thuringiensis. The bacterium produces a protein that is toxic when ingested by individual species of insects, thereby providing protection throughout the entire plant.