Escherichia coli

the principal species of the genus, a common facultative organism of the intestines of many different animals. The organisms are characteristically positive to indole and methyl red and negative to the Voges-Proskauer and citrate tests; serovars are based on the distribution of heat-stable O antigens, envelope K antigens of varying heat stability, and flagellar H antigens that are heat labile. Most are nonpathogenic, but pathogenic strains producing fevers and diarrhea are common (see colibacillosis). The fever-causing strains are found in urinary tract infections, abscesses, conjunctivitis, and occasionally septicemic conditions such as Winckel disease. The enteropathogenic strains (EPEC) produce intestinal disease and diarrhea, especially in hospitalized infants and other baby animals. The enterotoxigenic strains (ETEC) cause diarrhea in piglets and calves and a choleralike disease in human infants and adults. Enteroinvasive serogroups (EIEC) related to Shigella invade the epithelial cells of the human colon, causing dysentery, sometimes associated with food poisoning. These often become the predominant bacteria in the flora of the mouth and throat during antibiotic therapy. Shiga toxin–producing groups (STEC, formerly called enterohemorrhagic, or EHEC) cause acute bloody diarrhea and hemolytic-uremic syndrome. A preparation of asparaginase derived from type EC-2 is used as an antineoplastic. Enteroadherent organisms (EAEC) are subdivided into enteroaggregative groups (EAggEC) (which adhere to the enteric mucosa to form colonies and can cause diarrhea in children), and diffusely adherent (DAEC) groups.

Medical dictionary. 2011.

Look at other dictionaries:

  • Escherichia Coli — Systematik Abteilung: Proteobacteria Klasse …   Deutsch Wikipedia

  • Escherichia Coli — Escherichia coli …   Wikipédia en Français

  • escherichia Coli — f. microb. Bacteria gram negativo de la familia de las enterobacteriacias que se encuentra en las heces y también en el colon de los humanos y de otros mamíferos. Ejerce una función beneficiosa para el hospedador, ya que sintetiza la vitamina K.… …   Diccionario médico

  • Escherichia coli — Escherichia coli, zu den Enterobacteriaceae gehörendes ⇒ Eubakterium, das im Darm des Menschen und anderer Säuger sowie überall dort vorkommt, wo Exkremente abgebaut werden. E. coli dürfte als Modellorganismus in der Mikrobiologie der… …   Deutsch wörterbuch der biologie

  • Escherichia coli — Escherichia coli. См. коли бактерия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Escherichia coli — ● Escherichia coli bactérie du tube digestif de l homme …   Encyclopédie Universelle

  • Escherichia coli — E. coli redirects here. For the protozoan parasite, see Entamoeba coli. For the 2011 E.coli outbreak, see 2011 E. coli O104:H4 outbreak. For a specific strain, see Escherichia coli (disambiguation). For Escherichia coli in molecular biology, see… …   Wikipedia

  • Escherichia coli — «E. coli» redirige aquí. Para el protozoario con la misma abreviatura, véase Entamoeba coli. Este artículo o sección necesita referencias que aparezcan en una publicación acreditada, como revistas especializadas, monografías, prensa diaria o… …   Wikipedia Español

  • Escherichia coli — Pour les articles homonymes, voir Coli. Escherichia coli …   Wikipédia en Français

  • Escherichia coli — Dieser Artikel wurde aufgrund von formalen und/oder inhaltlichen Mängeln in der Qualitätssicherung Biologie zur Verbesserung eingetragen. Dies geschieht, um die Qualität der Biologie Artikel auf ein akzeptables Niveau zu bringen. Bitte hilf mit,… …   Deutsch Wikipedia

  • Escherichia coli — žarnyno lazdelė statusas T sritis ekologija ir aplinkotyra apibrėžtis Gyvenamosios aplinkos, ypač vandens, užterštumo rodiklis – bakterija (Escherichia coli), gyvenanti žmogaus ir gyvūnų žarnyne, užterštame vandenyje, maisto produktuose. Kartais… …   Ekologijos terminų aiškinamasis žodynas

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.