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Enterobacter is a genus of common Gram-negative, facultatively anaerobic, rod-shaped, non-spore-forming bacteria of the family Enterobacteriaceae. It is the type genus of the order Enterobacterales. Several strains of these bacteria are pathogenic and cause opportunistic infections in immunocompromised hosts and in those who are on mechanical ventilation. The urinary and respiratory tracts are the most common sites of infection. The genus Enterobacter is a member of the coliform group of bacteria. It does not belong to the fecal coliforms group of bacteria, unlike Escherichia coli, because it is incapable of growth at 44.5 °C in the presence of bile salts. Some of them show quorum sensing properties.
The Gemmatimonadota are a phylum of bacteria established in 2003. The phylum contains two classes Gemmatimonadetes and Longimicrobia.
Armatimonadota is a phylum of gram-negative bacteria.
Polynucleobacter is a genus of bacteria, originally established by Heckmann and Schmidt (1987) to exclusively harbor obligate endosymbionts of ciliates belonging to the genus Euplotes.
Limnohabitans is a genus of bacteria established by Hahn et al. (2010). The genus contains four species which all represent planktonic bacteria dwelling in the water column of freshwater lakes, reservoirs, and streams.
Limnohabitans curvus is an aerobic, nonmotile bacterium from the genus Limnohabitans and family Comamonadaceae, which was isolated from the pelagic zone from a freshwater lake in Mondsee in Austria.
Limnohabitans australis is an aerobic, nonmotile bacterium from the genus Limnohabitans and family Comamonadaceae, which was isolated from a freshwater pond in São Carlos, São Paulo state, Brazil.
Limnohabitans planktonicus is a Gram-negative, oxidase- and catalase-positive, aerobic, unpigmented bacterium from the genus Limnohabitans, which was isolated from the mesoeutrophic freshwater reservoir in Římov in the Czech Republic.
Limnohabitans parvus is a Gram-negative, aerobic, oxidase- and catalase-positive, unpigmented, short-rod-shaped, nonmotile bacterium from the genus Limnohabitans, which was isolated with Limnohabitans planktonicus from the mesoeutrophic freshwater reservoir in Římov in the Czech Republic.
Paraburkholderia sediminicola is a gram-negative, catalase and oxidase-positive rod-shaped motile bacterium from the genus Paraburkholderia and the family Burkholderiaceae which was isolated from freshwater sediment. Colonies of Paraburkholderia sediminicola are creamy white in colour.
Chitinimonas is a genus of Gram-negative, chitinolytic, rod-shaped bacteria which have flagella from the family of Burkholderiaceae which belongs to the class Betaproteobacteria. All species of Chitinimonas have been found in regions of Asia. Species of this genus are found to be both aerobic and anaerobic. Chitinimonas is optimally grown and cultured at 25 °C to 37 °C, with very little concentrations of NaCl.
Exiguobacterium is a genus of bacilli and a member of the low GC phyla of Bacillota. Collins et al. first described the genus Exiguobacterium with the characterization of E. aurantiacum strain DSM6208T from an alkaline potato processing plant. It has been found in areas covering a wide range of temperatures (-12 °C—55 °C) including glaciers in Greenland and hot springs in Yellowstone, and has been isolated from ancient permafrost in Siberia. This ability to survive in varying temperature extremes makes them an important area of study. Some strains in addition to dynamic thermal adaption are also halotolerant, can grow within a wide range of pH values (5-11), tolerate high levels of UV radiation, and heavy metal stress.
Roseomonas is a genus of Gram negative bacteria. The cells are coccoid rods when viewed microscopically. Certain species are known to be opportunistic infections for humans.
Silvanigrella is a genus of the phylum Bdellovibrionota. The genus currently contains two described species: Silvanigrella aquatica and Silvanigrella paludirubra.
Rhodoluna is a Gram-positive, non-spore-forming and non-motile genus of bacteria from the family of Microbacteriaceae. The type strain of the only species Rhodoluna lacicola encodes an actinorhodopsin, which is a light-diven proton pump enabling light energy conversion, potentially resulting in a mixotrophic physiology. The type strain of R. lacicola was isolated from Lake Tai in China. The type strain MWH-Ta8 is remarkable for its very small cell size ultramicrobacterium and its small genome size of only 1.4 Mbp. The type strain has a planktonic lifestyle, that is freely floating the water column of aquatic systems. Currently, the genus Rhodoluna contains two described species.
Polynucleobacter hirudinilacicola is an aerobic, chemo-organotrophic, non-motile, free-living bacterium of the genus Polynucleobacter.
Pseudaeromonas pectinilytica is a Gram-negative, rod-shaped facultatively anaerobic and motile bacterium from the genus of Pseudaeromonas which has been isolated from a freshwater stream from Jeonju in Korea.
Chishuiella is a genus of gram-negative freshwater bacterium. It contains a single species, Chishuiella changwenlii.
Aquirufa is a genus of red-pigmented freshwater bacteria affiliated with the family of Cytophagaceae.
Nibricoccus is a Gram-negative, strictly aerobic and non-motile genus of bacteria from the family of Opitutaceae with one known species. Nibricoccus aquaticus has been isolated from hyporheic freshwater from Korea.
References
- 1 2 3 4 "Genus: Rariglobus". LPSN.DSMZ.de.
- ↑ Pitt, Alexandra; Schmidt, Johanna; Koll, Ulrike; Hahn, Martin W. (1 March 2020). "Rariglobus hedericola gen. nov., sp. nov., belonging to the Verrucomicrobia, isolated from a temperate freshwater habitat". International Journal of Systematic and Evolutionary Microbiology. 70 (3): 1830–1836. doi: 10.1099/ijsem.0.003980 . PMID 31958053. S2CID 210830504.
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