The Chlamydiota are a bacterial phylum and class whose members are remarkably diverse, including pathogens of humans and animals, symbionts of ubiquitous protozoa, and marine sediment forms not yet well understood. All of the Chlamydiota that humans have known about for many decades are obligate intracellular bacteria; in 2020 many additional Chlamydiota were discovered in ocean-floor environments, and it is not yet known whether they all have hosts. Historically it was believed that all Chlamydiota had a peptidoglycan-free cell wall, but studies in the 2010s demonstrated a detectable presence of peptidoglycan, as well as other important proteins.
Halomonadaceae is a family of halophilic Pseudomonadota.
Methanococcus is a genus of coccoid methanogens of the family Methanococcaceae. They are all mesophiles, except the thermophilic M. thermolithotrophicus and the hyperthermophilic M. jannaschii. The latter was discovered at the base of a “white smoker” chimney at 21°N on the East Pacific Rise and it was the first archaeal genome to be completely sequenced, revealing many novel and eukaryote-like elements.
Halomonas is a genus of halophilic (salt-tolerating) bacteria. It grows over the range of 5 to 25% NaCl.
Alteromonas is a genus of Pseudomonadota found in sea water, either in the open ocean or in the coast. It is Gram-negative. Its cells are curved rods with a single polar flagellum.
Paracoccus is a genus of bacteria in the family Rhodobacteraceae.
In taxonomy, Natrinema is a genus of the Halobacteriaceae.
Thermoanaerobacter is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as Clostridium species and members of the now obsolete genera Acetogenium and Thermobacteroides
Actinosynnema is a genus in the phylum Actinomycetota (Bacteria).
Dactylosporangium is a genus in the phylum Actinomycetota (Bacteria).
Pseudoalteromonas aurantia is an antibacterial-producing marine bacterium commonly found in Mediterranean waters. In 1979, Gauthier and Breittmayer first named it Alteromonas aurantia to include it in the genus Alteromonas that was described seven years earlier, in 1972 by Baumann et al. In 1995, Gauthier et al renamed Alteromonas aurantia to Pseudoalteromonas aurantia to include it in their proposed new genus, Pseudoalteromonas, which they recommended splitting from Alteromonas.
Deleya halophila is a salt-loving, gram-negative bacteria. It is known to habitat marine environments, solar salterns, saline soils, and salted food. The genus was named after J. De Ley, a noted biologist. Its type strain is CCM 3662.
Virgibacillus is a genus of Gram-positive, rod-shaped (bacillus) bacteria and a member of the phylum Bacillota. Virgibacillus species can be obligate aerobes, or facultative anaerobes and catalase enzyme positive. Under stressful environmental conditions, the bacteria can produce oval or ellipsoidal endospores in terminal, or sometimes subterminal, swollen sporangia. The genus was recently reclassified from the genus Bacillus in 1998 following an analysis of the species V. pantothenticus. Subsequently, a number of new species have been discovered or reclassified as Virgibacillus species.
Halomonas elongata is considered the type species of the genus Halomonas. It is a chemoorganotrophic, halophilic bacterium first isolated from a solar salt facility located in Bonaire, Netherlands Antilles.
Halovibrio is a genus from the family of Halomonadaceae.
Kushneria aurantia is a Gram-negative, aerobic, non-spore-forming, rod-shaped and moderately halophilic bacterium from the genus of Kushneria which has been isolated from the surface of leaves from the mangrove Avicennia germinans.
Halovibrio denitrificans is an extremely halophilic and denitrifying bacterium from the genus of Halovibrio which has been isolated from sediments from a hypersaline lake from Central Asia.
Kushneria marisflavi is a Gram-negative and halophilic bacterium from the genus of Kushneria which has been isolated from the Yellow Sea in Korea.
Chromohalobacter canadensis is a halotolerant bacterium from the genus of Chromohalobacter.
Weizmannia is a genus of Gram-Positive rod-shaped bacteria in the family Bacillaceae from the order Bacillales. The type species of this genus is Weizmannia coagulans.
