Porphyromonas is a Gram-negative, non-spore-forming, obligately anaerobic and non-motile genus from the family Porphyromonadaceae. There were 16 different Porphyromonas species documented as of 2015, which reside in both animal and human reservoirs. It was discovered more recently that Porphyromonas also exist in the environment, albeit to a lesser extent. This genus is notably implicated in the modulation of oral cavity, respiratory tract, and gastrointestinal tract disease states. It is suggested that Porphyromonas either operate as benign bacteria pertinent to host immunity or are potential pathobionts that opportunistically provoke diseased states when homeostasis is disrupted. Despite its characterization not being fully elucidated due to sparse research, various studies report the prevalence of this genus at 58.7% in healthy states compared with 41.3% in diseased states.
Falsiporphyromonas endometrii is an anaerobic bacterium from the genus of Falsiporphyromonas which has been isolated from the post-partum bovine uterus of a holstein cow in Klein Bennebek in Germany.
Porphyromonas bennonis is a Gram-negative, anaerobic and non-spore-forming bacterium from the genus Porphyromonas which has been isolated from human clinical specimens.
Porphyromonas cangingivalis is a bacterium from the genus Porphyromonas which occur in the periodontal pockets of dogs. Porphyromonas cangingivalis can cause periodontitis in animals.
Porphyromonas canoris is a Gram-negative, obligately anaerobic, non-spore-forming and non-motile bacterium from the genus Porphyromonas which has been isolated from subgingival plaque from dogs.
Porphyromonas catoniae is a Gram-negative and anaerobic bacterium from the genus Porphyromonas which has been isolated from the human gingival crevice.
Porphyromonas circumdentaria is a Gram-negative and anaerobic bacterium from the genus Porphyromonas which has been isolated from a subcutaneous abscess of a cat in Australia.
Porphyromonas gulae is a Gram-negative, anaerobic, non-spore-forming, rod-shaped and non-motile bacterium from the genus Porphyromonas which has been isolated from the gingival sulcus of a wolf in Canada.
Porphyromonas pogonae is a Gram-negative bacterium from the genus Porphyromonas which has been isolated from human clinical specimen.
Porphyromonas somerae is a Gram-negative and anaerobic bacterium from the genus Porphyromonas which has been isolated from a human leg ulcer in the United States.
Porphyromonas uenonis is a bacterium from the genus Porphyromonas which has been isolated from a human sacral decubitus ulcer in Los Angeles in the United States.
Porphyromonas macacae is a Gram-negative, non-spore-forming, anaerobic and non-motile bacterium from the genus Porphyromonas which has been isolated from the periodontal pocket of the macaque Macaca arctoides.
Propionimicrobium lymphophilum is a Gram-positive bacterium which has been isolated from submaxillary tissue.
Buttiauxella noackiae is a Gram-negative bacterium from the genus of Buttiauxella which has been isolated from a snail in Sydney in Australia. Buttiauxella noackiae is named after Katrin Noack.
Lentzea albidocapillata is a Gram-positive bacterium from the genus Lentzea which has been isolated from tissue specimen of a patient in Germany.
Clostridium celatum is a Gram-positive and anaerobic bacterium from the genus Clostridium which has been isolated from human faeces.
Thomasclavelia cocleata is a Gram-positive and anaerobic bacterium from the family Coprobacillaceae which has been isolated from the caecal content of a mouse in Miyazaki in Japan.
Clostridium hylemonae is a Gram-positive and anaerobic bacterium from the genus Clostridium which has been isolated from human faeces.
Johnsonella is a Gram-negative, non-spore-forming and non-motil bacterial genus from the family of Lachnospiraceae with one known species. Johnsonella ignava occur in the gingival crevice of humans.
Collinsella stercoris is a Gram-positive and anaerobic bacterium from the genus of Collinsella which has been isolated from human feces in Japan.
