Escherichia Coli - Research Article from Macmillan Science Library: Genetics

This encyclopedia article consists of approximately 3 pages of information about Escherichia Coli.
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Attributes of E. Coli

E. coli is important to human health because it is a source of vitamins B12 and K, which it manufactures from undigested food in the large intestine. Unlike many other intestinal bacteria, E. coli can survive and grow in the presence of oxygen (although it can also grow without oxygen), which makes it a useful experimental model organism in the laboratory.

Even though E. coli is a single species of bacteria, many different varieties (called strains) of the species exist. Each has different characteristics, and while some are safe model organisms, others can cause potentially deadly disease. This is the case with E. coli 0157:H7, which is considered a dangerous pathogen which can infect humans. This strain is significantly different from the commonly used laboratory strains, which do not cause disease.

Importance in Laboratory Studies

E. coli is the most well-understood bacterium in the...

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This section contains 676 words
(approx. 3 pages at 300 words per page)
Buy the Escherichia Coli Encyclopedia Article
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Macmillan Science Library: Genetics
Escherichia Coli from Macmillan Science Library: Genetics. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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