Ureaplasma

Ureaplasma
A genus of microaerophilic to anaerobic, nonmotile bacteria (family Mycoplasmataceae) with no cell walls. Gram-negative, they are predominantly coccoidal to coccobacillary elements, approximately 0.3 μm in diameter, which frequently grow in short filaments; colonies are generally small, 20–30 μm in diameter, and may have no zones of surface growth. U. hydrolyze urea with production of ammonia, and are found in the human genitourinary tract, occasionally in the pharynx and rectum. In males, they are associated with nongonococcal urethritis and prostatitis; in females, with genitourinary tract infections and reproductive failure; in neonates, they may cause pneumonia or meningitis. The type species is U. urealyticum. SYN: T-mycoplasma.
- U. urealyticum a species that has been isolated from the respiratory tract and central nerve system of newborns. It causes infections of the genitourinary tract, particularly urethritis; thought to be sexually transmitted and transmitted from mother to infant. The laboratory diagnosis is simplified through the use of urea-containng agar, permitting detection of the tiny colonies.

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urea·plas·ma yu̇-'rē-ə-.plaz-mə n
1) cap a genus of mycoplasmas of the family Mycoplasmataceae that are able to hydrolyze urea with the formation of ammonia and that include one (U. urealyticum) found in the human genitourinary tract, oropharynx, and anal canal
2) a mycoplasma of the genus Ureaplasma

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Urea·plas·ma (u-re″ə-plazґmə) [urea + Gr. plasma anything formed or molded] a genus of gram-negative bacteria of the family Mycoplasmataceae, consisting of pleomorphic, nonmotile, microaerophilic, coccoid or coccobacillary organisms that lack a cell wall, form extremely small colonies, and hydrolyze urea; they occur most commonly in the oropharynx and respiratory and urogenital tracts. The type species is U. urealyґticum. Called also T-strain mycoplasma (T for tiny).

Medical dictionary. 2011.

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Look at other dictionaries:

  • Ureaplasma — Ureaplasma,   zu den Mykoplasmen gehörende Bakteriengattung. Ureaplasma urealyticum ist im Urogenitaltrakt des Menschen stark verbreitet (zu etwa 10 % bei gesunden, zu etwa 80 % bei an Tripper erkrankten Personen) …   Universal-Lexikon

  • Ureaplasma — Ureaplasma …   Wikipédia en Français

  • Ureaplasma — Taxobox name = Ureaplasma regnum = Bacteria divisio = Firmicutes classis = Mollicutes ordo = Mycoplasmatales familia = Mycoplasmataceae genus = Ureaplasma Ureaplasma is a genus of bacteria belonging to the family Mycoplasmataceae …   Wikipedia

  • ureaplasma — noun Any member of the genus Ureaplasma of urease positive bacteria …   Wiktionary

  • ureaplasma — yu̇ˈrēəˌplazmə noun Etymology: New Latin, from urea + plasma 1. capitalized : a genus of mycoplasmas of the family Mycoplasmataceae that are able to hydrolyze urea with the formation of ammonia and that include one (U. urealyticum) found in the… …   Useful english dictionary

  • Ureaplasma urealyticum — Systematik Abteilung: Firmicutes Klasse: Mollicutes Ordnung: Mycoplasmatales Familie …   Deutsch Wikipedia

  • Ureaplasma urealyticum — est une espèce isolée de l’appareil urogénital et du rhinopharynx de l’homme. Cette bactérie est responsable d urétrites (15 à 20 % des urétrites non gonococciques) et parfois de pyélonéphrites. Chez la femme enceinte, l’infection des voies… …   Wikipédia en Français

  • ureaplasma urealyticum — parásito habitual de las membranas mucosas del hombre, se les considera causantes de las uretritis microfotografía [véase http://www.iqb.es/diccio/u/u.htm#ureaplasma] Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. Ureaplasma… …   Diccionario médico

  • Ureaplasma urealyticum — Taxobox name = Ureaplasma urealyticum regnum = Bacteria divisio = Firmicutes classis = Mollicutes ordo = Mycoplasmatales familia = Mycoplasmataceae genus = Ureaplasma species = U. urealyticum binomial = Ureaplasma urealyticum binomial authority …   Wikipedia

  • Ureaplasma urealyticum —   Ureaplasma urealyticum Clasificación científica Dominio …   Wikipedia Español

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