Escherichia coli habitats, cell types, and molecular mechanisms of gene control.

M. A. Savageau

Research output: Contribution to journalArticle

185 Citations (Scopus)

Abstract

Escherichia coli cycles between 2 principal habitats-intestines of warm-blooded animals and water, sediment and soil-that are distinct with respect to physical conditions and the spectrum and level of available nutrients. On average, an E. coli cell is 'born' in the intestine of a warm-blooded animal and spends about half its life there, is excreted onto the surface of the earth where it spends the 2nd half of its life, and then dies or, with a small probability, colonizes a new host. One can predict that E. coli will have at least 2 phenotypically distinct cell types and that these will have dual molecular control mechanisms of opposite type for the regulation of certain functions. In cases for which the molecular data are available for comparison, they agree with predictions. -from Author

Original languageEnglish (US)
Pages (from-to)732-744
Number of pages13
JournalAmerican Naturalist
Volume122
Issue number6
DOIs
StatePublished - 1983
Externally publishedYes

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Escherichia coli
half life
gene
intestines
habitat
habitats
genes
cells
nutrient
animals
prediction
sediment
sediments
soil
nutrients
water
warm-blooded animal
comparison
regulation
physical conditions

ASJC Scopus subject areas

  • Ecology

Cite this

Escherichia coli habitats, cell types, and molecular mechanisms of gene control. / Savageau, M. A.

In: American Naturalist, Vol. 122, No. 6, 1983, p. 732-744.

Research output: Contribution to journalArticle

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