Porphyromonas gingivalis

**Definition:** A species of gram-negative, anaerobic, rod-shaped bacteria originally classified within the BACTEROIDES genus. This bacterium produces a cell-bound, oxygen-sensitive collagenase and is isolated from the human mouth.

**Tree numbers:** - B03.440.080.094.625.515 - B03.440.425.410.194.625.515

**Synonyms:** - Bacteroides gingivalis