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Halomonadaceae is a family of halophilic Proteobacteria.
Arcanobacterium is a genus of bacteria. They are gram-positive, non–acid fast, nonmotile, facultatively anaerobic, and non–endospore forming. They are widely distributed in nature in the microbiota of animals and are mostly innocuous. Some can cause disease in humans and other animals. As with various species of a microbiota, they usually are not pathogenic but can occasionally opportunistically capitalize on atypical access to tissues or weakened host defenses.
Polynucleobacter is a genus of Proteobacteria, originally established by Heckmann and Schmidt (1987) to exclusively harbor obligate endosymbionts of ciliates belonging to the genus Euplotes.
Limnohabitans is a genus of Proteobacteria 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 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.
Caballeronia grimmiae is a gram-negative, non-spore-forming, rod-shaped bacterium from the genus of Caballeronia and the family of Burkholderiaceae which was isolated from the xerophilous moss Grimmia montana in China.
Polynucleobacter necessarius is a bacterium of the genus Polynucleobacter.
Polynucleobacter acidiphobus is an aerobic, chemo-organotrophic, catalase- and oxidase-positive, nonmotile bacterium of the genus Polynucleobacter. The type strain was isolated from a rock pool which was filled with fresh water in a mountain brook in Corsica in France.
Polynucleobacter difficilis is an aerobic, catalase- and oxidase-positive, chemo-organotrophic, nonmotile, freshwater bacterium of the genus Polynucleobacter, isolated from the Lake Sevan from a depth of 60 m in Armenia.
Polynucleobacter rarus is an aerobic, chemo-organotrophic, catalase- and oxidase-positive, nonmotile bacterium of the genus Polynucleobacter, isolated from an acidic lake in Wisconsin.
Derxia lacustris is a Gram-negative, nitrogen-fixing, aerobic, motile bacterium of the genus Derxia, isolated from a freshwater lake in Taiwan.
Kerstersia similis is a gram-negative bacterium of the genus of Kerstersia which was isolated from human clinical samples.
Polynucleobacter asymbioticus is an aerobic, catalase- and oxidase-positive, chemo-organotrophic, nonmotile, free-living bacterium of the genus Polynucleobacter. The type strain was isolated from a small pond located in the Austrian Alps in the area of Salzburg and described as a new subspecies of Polynucleobacter necessarius in 2009. The classification of the type strain was hampered by the fact that its closest described relative represented obligate endosymbionts, i.e. P. necessarius, not available as a pure culture suitable for standard tests for delineation of prokaryotic species. Therefore, the strain was preliminarily placed in the subspecies P. necessarius subsp. asymbioticus. Later sequencing of the genome of the type strain revealed that the strain represented a novel species within the genus Polynucleobacter. Therefore, its taxonomic rank was lifted from the subspecies to the species level. Strains of P. asymbioticus dwell as planktonic organisms in acidic, humic-rich freshwater systems. Comparative genome analyses revealed that P. asymbioticus represents an atypical member of the family Burkholderiaceae regarding its small genome size and its passive lifestyle. A recent study used a collection of 37 P. asymbioticus strains isolated from various ponds located in a larger region of the Austrian Alps to gain insights in the evolution of Polynucleobacter bacteria.
The Silvanigrellaceae are the only family of the order Silvanigrellales, of the class Oligoflexia, of the phylum Proteobacteria. This family currently harbors the two genera Silvanigrella and Fluviispira
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 sphagniphilus is an aerobic, chemo-organotrophic, non-motile, free-living bacterium of the genus Polynucleobacter.
Prolixibacteraceae is a family of 11 bacterial genera in the order of Bacteroidales.
References
- ↑ LPSN
- ↑ Hahn, Martin W.; Kasalický, Vojtěch; Jezbera, Jan; Brandt, Ulrike; Jezberová, Jitka; Šimek, Karel (Jun 2010). "Limnohabitans curvus gen. nov., sp. nov., a planktonic bacterium isolated from a freshwater lake". Int J Syst Evol Microbiol. 60 (Pt 6): 1358–65. doi:10.1099/ijs.0.013292-0. PMC 3091418 . PMID 19671731.
- ↑ Hahn, Martin W.; Kasalický, Vojtěch; Jezbera, Jan; Brandt, Ulrike; Jezberová, Jitka; Šimek, Karel (Jun 2010). "Limnohabitans curvus gen. nov., sp. nov., a planktonic bacterium isolated from a freshwater lake". Int J Syst Evol Microbiol. 60 (Pt 6): 1358–65. doi:10.1099/ijs.0.013292-0. PMC 3091418 . PMID 19671731.
- ↑ http://ijs.sgmjournals.org/content/60/6/1358.full.pdf [ bare URL ]
