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Gmo Corn Research Paper

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Words 908
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TJ Durst
12/15/15
Mr. Trout
GMO Corn Genetically modified organisms are organisms that have had their genes modified or altered to change the outcome of that organism. Over the years many organisms have been genetically modified for good reasons and some for bad reasons. Many genetically modified organisms have helped us, such as crops that yield more, have immunity chemicals, and fight off predators. There are also stupid and bad genetically modified organisms, such as web spinning goats and designer babies. Corn has been modified in many different ways but one of the most useful modifications is insect repellent, used to keep insects from eating and killing the plant, but scientist don't know what other effects can happen. With advanced …show more content…
Bacillus thuringiensis, commonly known as Bt, is a bacterium that occurs naturally in the soil. For years, bacteriologists have known that some strains of Bt produce proteins that kill certain insects with alkaline digestive tracts. When these insects ingest the protein produced by Bt, the function of their digestive systems is disrupted, producing slow growth and, ultimately, death. Bt is very selective - different strains of the bacterium kill different insects and only those insects. Strains of Bt are effective against European corn borers and cotton bollworms, Colorado potato beetles, and certain flies and mosquitos. Bt is not harmful to humans, other mammals, birds, fish, or beneficial insects. Bt was first identified in 1911 when it was discovered that it killed the larvae of flour moths. Bt was registered as a bio pesticide in the U.S. in 1961. Today it is used in insecticide sprays sold to home gardeners and others worldwide. However, less than one percent of all pesticides used in the U.S. each year contain Bt. As an ingredient of commercial sprays, Bt is relatively expensive and has some …show more content…
The primary target species for Bt corn is Ostrinia nubilalis, the European corn borer; ironically, the pest that induced the development of Bt corn was imported from Europe. Other Lepidopteron pest species that can be controlled or partially controlled by current Bt technology are corn earworm, common stalk borer, armyworm, and Southwestern corn borer. It has not shown much benefit for controlling damage by black cutworm or fall armyworm. Lepidoptera’s can influence the development of stalk rot and ear rot diseases in corn. In particular, Fusarium ear rot. Any of the major stalk rots can be associated with stalk tunneling although the overall importance of insect tunneling in stalk rot development is a matter of some disagreement among plant pathologists. The associations between these insects and corn diseases result from several types of host-insect-pathogen interactions. One type of interaction is a vector relationship. European corn borer larvae carry spores of Fusarium species from the plant surface to the surfaces of damaged kernels or to the interior of stalks, where infections are initiated. A second type of interaction is the formation of entry wounds for the fungi when larvae feed on stalks or kernels. Even when the larvae do not directly carry the fungi into the stalks, spores subsequently deposited on the wounded tissue are very likely to

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