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.
Rapidiothrix is a genus from the family of Flammeovirgaceae with one known species. Rapidiothrix bacteria produces the antibiotics ariakemicin A and ariakemicin B.
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 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.
Porphyromonas levii is a Gram-negative, anaerobic bacterium from the genus Porphyromonas, which has been isolated from a bovine rumen.
Catonella is a Gram-negative, obligately anaerobic, non-spore-forming and non-motile bacterial genus from the family of Lachnospiraceae with one known species. Catonella morbi occur in the gingival crevice of humans.
Dorea is a Gram-positive and nonspore-forming bacterial genus from the family Lachnospiraceae, which occur in 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.
Chitinivibrio is an extremely haloalkaliphilic genus of bacteria from the family of Chitinivibrionaceae with one known species. Chitinivibrio alkaliphilus has been isolated from hypersaline lake sediments from Wadi al Natrun in Egypt.
Nevskia soli is a Gram-negative, strictly aerobic, rod-shaped and motile bacterium from the genus of Nevskia which has been isolated from soil from a ginseng field from the Jeju Island in Korea.
Arachidicoccus rhizosphaerae is a Gram-negative, plant-growth-promoting, non-spore-forming and non-motile bacterium from the genus of Arachidicoccus which has been isolated from rhizospheric soil.
Hallella is a Gram-negative, non-spore-forming, anaerobic and non-motile genus of bacteria from the family of Prevotellaceae with on known species. Hallella is named after the American microbiologist Ivan C. Hall. Hallella seregens has been isolated from a gingival crevice of a patient.
