Bacterium
bacteroides fragilis
Subclass of:
Bacteroides
Definitions related to bacteroides fragilis:
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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, indole positive, produces hydrogen sulfide, does not reduce nitrate, hydrolyzes esculin and starch, does not ferment trehalose, melezitose or arabinose, and is penicillin resistant. B. fragilis is commensal and part of the normal human gastrointestinal tract flora, but may become pathogenic in other body regions.NCI ThesaurusU.S. National Cancer Institute, 2021
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Any bacterial organism that can be assigned to the species Bacteroides fragilis.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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Gram-negative bacteria occurring in the lower intestinal tracts of man and other animals. It is the most common species of anaerobic bacteria isolated from human soft tissue infections.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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