porphyromonas

A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods or coccobacilli. Organisms in this genus had originally been classified as members of the bacteroides genus but overwhelming biochemical and chemical findings indicated the need to separate them from other bacteroides species, and hence, this new genus was created. ... (12 Dec 199...
Found on http://www.encyclo.co.uk/local/20973

Porphyromonas

Type: Term Pronunciation: pōr′fir-om′ō-năs Definitions: 1. A genus of small anaerobic gram-negative nonmotile cocci and usually short rods that produce smooth, gray to black pigmented colonies the size of which varies with the species. In humans, they are found as part of the normal flora in the oropharynx, including ging...
Found on http://www.medilexicon.com/medicaldictionary.php?t=71260
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