| Psychroflexus gondwanensis | |
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| Scientific classification | |
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| Species: | P. gondwanensis |
| Binomial name | |
| Psychroflexus gondwanensis Bowman et al. 1999 [1] | |
| Type strain | |
| ACAM 44, ATCC 51278, CCUG 33444, CIP 104040, DSM 5423, Franzmann ACAM44, KCTC 2919, LMG 13192, NCIMB 13407 [2] | |
| Synonyms | |
Flavobacterium gondwanense, [3] Contents | |
Psychroflexus gondwanensis is a halophilic bacteria from the genus of Psychroflexus which has been isolated from am organic lake in Antarctica. [1] [3] [4] [5]
Halotolerance is the adaptation of living organisms to conditions of high salinity. Halotolerant species tend to live in areas such as hypersaline lakes, coastal dunes, saline deserts, salt marshes, and inland salt seas and springs. Halophiles are organisms that live in highly saline environments, and require the salinity to survive, while halotolerant organisms can grow under saline conditions, but do not require elevated concentrations of salt for growth. Halophytes are salt-tolerant higher plants. Halotolerant microorganisms are of considerable biotechnological interest.
In taxonomy, the Halobacteriaceae are a family of the Halobacteriales in the domain Archaea. Halobacteriaceae represent a large part of halophilic Archaea, along with members in two other methanogenic families, Methanosarcinaceae and Methanocalculaceae. The family consists of many diverse genera that can survive extreme environmental niches. Most commonly, Halobacteriaceae are found in hypersaline lakes and can even tolerate sites polluted by heavy metals. They include neutrophiles, acidophiles, alkaliphiles, and there have even been psychrotolerant species discovered. Some members have been known to live aerobically, as well as anaerobically, and they come in many different morphologies. These diverse morphologies include rods in genus Halobacterium, cocci in Halococcus, flattened discs or cups in Haloferax, and other shapes ranging from flattened triangles in Haloarcula to squares in Haloquadratum, and Natronorubrum. Most species of Halobacteriaceae are best known for their high salt tolerance and red-pink pigmented members, but there are also non-pigmented species and those that require moderate salt conditions. Some species of Halobacteriaceae have been shown to exhibit phosphorus solubilizing activities that contribute to phosphorus cycling in hypersaline environments. Techniques such as 16S rRNA analysis and DNA-DNA hybridization have been major contributors to taxonomic classification in Halobacteriaceae, partly due to the difficulty in culturing halophilic Archaea.
Halomonas ventosae is a moderately halophilic, denitrifying, exopolysaccharide-producing bacterium. Its type strain is Al12T.
Halobaculum gomorrense is an extremely halophilic archaeon first isolated from the Dead Sea. It is rod-shaped, with type strain DSM 9297.
Halomonas organivorans is a halophile able to degrade aromatic compounds. It's considered a potentially useful bacteria for decontamination of polluted saline habitats. Its type strain is G-16.1T.
Methylohalobius crimeensis is a moderately halophilic, methanotrophic bacterium, the type species of its genus. It is Gram-negative, aerobic, non-pigmented, motile, coccoid to spindle-shaped, with type strain 10KiT.
Halomonas alimentaria is a bacterium first isolated from jeotgal, a traditional Korean fermented seafood, hence its name. It is Gram-negative, moderately halophilic, non-motile and coccus- or short rod-shaped, with type strain YKJ-16T.
Colwellia is a genus of deep-sea psychrophilic, piezophilic, and facultative anaerobic bacteria from the family Colwelliaceae. Colwellia grows at a temperature at −20 °C by producing cryoprotective polymeric substances.
Chryseobacterium xinjiangense is a bacterium from the genus Chryseobacterium. It has been isolated from the alpine permafrost of the Tianshan Mountains in China.
Psychroflexus is a psychrophilic bacteria genus from the family of Flavobacteriaceae.
Psychroflexus halocasei is a Gram-negative, strictly aerobic, halophilic, rod-shaped and non-motile bacteria from the genus of Psychroflexus which has been isolated from the surface of cheese in Salzburg in Austria.
Psychroflexus planctonicus is a Gram-negative, strictly aerobic, moderately halophilic, and non-motile bacteria from the genus of Psychroflexus which has been isolated from the Lake Xiaochaidan in Qaidam Basin in the Qinghai Province in China.
Psychroflexus salarius is a Gram-negative, aerobic, moderately halophilic and non-motile bacteria from the genus of Psychroflexus which has been isolated from the Gomso salt pan in Buan County in Korea.
Psychroflexus salinarum is a Gram-negative, rod-shaped and non-motile bacteria from the genus of Psychroflexus which has been isolated from the Yellow Sea in Korea.
Psychroflexus salis is a Gram-negative, strictly aerobic and non-motile bacteria from the genus of Psychroflexus which has been isolated from the Lake Xiaochaidan in the Qinghai Province in China. 5
Psychroflexus sediminis is a Gram-negative, mesophilic, slightly halophilic and non-motile bacteria from the genus of Psychroflexus which has been isolated from a salt lake in Qaidam Basin in China.
Gelidibacter is a Gram-negative and rod-shaped bacteria genus from the family of Flavobacteriaceae.
Marinobacter vinifirmus is a Gram-negative, moderately halophilic, non-spore-forming and motile bacterium from the genus of Marinobacter which has been isolated from wine-barrel-decalcification wastewater in France.
Desulfohalobium is a Gram negative, anaerobic, sulfate-reducing, moderately halophilic and rod-shaped bacterial genus from the family of Desulfovibrionaceae.
Virgibacillus subterraneus is a Gram-positive and moderately halophilic bacterium from the genus of Virgibacillus which has been isolated from saline soil from the Qaidam Basin in China.
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