Bacterium
prevotella nigrescens
Subclass of:
Prevotella
Definitions related to prevotella nigrescens:
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A species of gram-negative bacteria in the family Prevotellaceae. It is the species most commonly isolated from endodontic infections (PULPITIS).NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A species of obligately anaerobic, Gram-negative, rod shaped bacteria assigned to the phylum Bacteroidetes. This species is nonmotile, non-spore forming, produces characteristic black pigmented colonies with a cream center on blood agar, fluoresces under UV (360 nm) light, indole positive, lipase negative, digests gelatin, hydrolyzes starch, but not esculin, and produces acid from glucose, dextrin, maltose, and sucrose, but not cellobiose, lactose, amygdalin, arabinose, rhamnose, salicin or xylose. P. nigrescens is part of the normal human oral flora, but is also associated with gingivitis and periodontitis.NCI ThesaurusU.S. National Cancer Institute, 2021
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Any bacterial organism that can be assigned to the species Prevotella nigrescens.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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