21.   Its leaves produce toxins that alter soil chemistry, harming native vegetation.

22.   Many birds and insects lost their ability to fly, and plants stopped producing defensive toxins.

23.   Not only does it mean that people do not have to eat plants that produce insecticidal toxins, but only target insects will be affected, he says.

24.   Some of the DNA, including the genes that produce the toxins, appears to have been implanted by viruses.

25.   Stachybotrys produces toxins called trichothecenes, which inhibit production of a protein called collagen that makes capillaries strong.

26.   That germ produces a toxin that inflames the colon and causes bloody diarrhea and stomach pain.

27.   The apparent purpose was to create a vaccine effective against a natural anthrax strain that produced these toxins.

28.   The bacteria kill by producing toxins that trigger an immune system cascade and send the body into shock.

29.   The bacteria, which grow best in a low-oxygen environment, proliferate in the can or jar and produce toxins that seep into the food.

30.   The corn, given a gene from the Bacillus thuringiensis bacterium, then produced a toxin that killed the European corn borer pest.