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Porphyromonas gingivalis
Definition 1
A species of obligately anaerobic, Gram-negative, rod shaped bacteria assigned to the phylum Bacteroidetes. This species is nonmotile, non-spore forming, indole and trypsin positive, alpha-fucosidase negative, pigmented, nonfermenting, utilizes trypticase, proteose, and peptone as a source of energy, and does not reduce nitrate or hydrolyze starch or esculin. P. gingivalis is associated with periodontal disease. (NCI Thesaurus)
Definition 2
Any bacterial organism that can be assigned to the species Porphyromonas gingivalis. (NCI Thesaurus/CDISC)
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A taxonomic family of bacterium in the phylum Bacteroidetes that includes the genera Porphyromonas, Parabacteroides and Tannerella, among others.
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