A rod-shaped bacterium, especially Escherichia coli and members of the genus Aerobacter, found in the intestinal tract of humans and other animals. Its presence in water indicates fecal contamination and can cause diarrhea and other dysenteric symptoms. Also called colon bacillus.
- The coliform bacterium Escherichia coli detects attractants and repellents in its environment by means of four homologous, dimeric receptors, Tar, Tsr, Trg, and Tap.
- E.coli is a coliform bacterium that has many subspecies; the majority are hosts of normal intestinal flora.
- A positive sample means that at least one coliform bacterium is present, and requires the collection of a set of three additional samples at or near the same location in the distribution system.
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Syllabification: col·i·form bac·te·ri·um
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