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Veillonella
Veillonella[‚vā·yō′nel·ə] (microbiology) The type genus of the family Veillonellaceae; small cells occurring in pairs, chains, and clusters. Veillonella
Veillonella (vā'yō-nel'ă), A genus of nonmotile, nonsporeforming, anaerobic bacteria (family Veillonellaceae) containing small (0.3-0.5 mcm in diameter), gram-negative cocci which occur as diplococci short chains and in masses. Carbon dioxide is required for growth, and carbohydrates are not fermented. These organisms are parasitic in the mouth and the intestinal and respiratory tracts of humans and other animals; they produce serologically specific endotoxins (lipopolysaccharides) that induce pyrogenicity and the Schwartzman phenomenon in rabbits; in humans, they have been associated with human bite infections and as a component of polymicrobial abscesses. The type species is Veillonella parvula. [Adrien Veillon, French bacteriologist, 1864-1931] Veil·lo·nel·la (vā'yō-nel'ă) A genus of nonmotile, non-spore-forming, anaerobic bacteria containing small gram-negative cocci that occur as diplococci and in masses. These organisms are parasitic in the mouth and in the intestinal and respiratory tracts of humans and other animals. [Adrien Veillon, French bacteriologist, 1864-1931]Veillon, Adrien, French bacteriologist, 1864-1931. Veillonella - a genus of nonmotile, non--spore-forming, anaerobic bacteria.subsp.Veillonella alcalescensalcalescens - a bacterial subspecies found primarily in the mouths of humans but occasionally in the buccal cavity of rabbits and rats.subsp.Veillonella alcalescensdispar - a subspecies found in the mouths and respiratory tracts of humans.Veillonella atypica - Synonym(s): Veillonella parvula subsp. atypicaVeillonella parvula - a bacterial species found normally as a harmless parasite in the natural cavities, especially the mouths and digestive tracts of humans and other animals.subsp.Veillonella parvulaatypia - a bacterial subspecies found in the buccal cavity of rats and humans. Synonym(s): Veillonella atypicasubsp.Veillonella parvulaparvula - a bacterial subspecies found in the mouth, or intestinal or respiratory tract of humans.subsp.Veillonella parvularodentium - a bacterial subspecies found in the buccal cavity and intestinal tract of hamsters, rats, and rabbits. Synonym(s): Veillonella rodentiumVeillonella rodentium - Synonym(s): Veillonella parvula subsp. rodentiumVeillonellaceae - a family of nonmotile, non--spore-forming, anaerobic bacteria containing gram-negative cocci. |