| Halomonadaceae | |
|---|---|
 | |
| GFAJ-1 grown on phosphorus. | |
Scientific classification  | |
| Domain: | Bacteria |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Oceanospirillales |
| Family: | Halomonadaceae |
| Genera | |
Aidingimonas Contents | |
Halomonadaceae is a family of halophilic Pseudomonadota.
The family was originally described in 1988 to contain the genera Halomonas and Deleya. [3]
In 1989, Chromobacterium marismortui was reclassified as Chromohalobacter marismortui forming a third genus in the family Halomonadaceae. [4]
Subsequently, in 1990 a species was discovered and was originally proposed to be called Volcaniella eurihalina forming a new genus in the Halomonadaceae, [5] but was later (in 1995) reclassified as a member of the genus Halomonas. [6]
The species Carnimonas nigrificans (sole member of genus) was not placed in the family due to the lack of two out of 15 descriptive 16S rRNA signature sequences, [7] but it has been proposed to reclassify it into the family. [8]
In 1996, the family was later reorganised by unifying genera Deleya, Halomonas and Halovibrio and the species Paracoccus halodenitrificans into Halomonas and placing Zymobacter in this family. [9] However, it was later discovered that the strain of Halovibrio variabilis DSM 3051 and DSM 3050 differed and the latter was made type strain of the Halovibrio, which remains still in use. [10] [11] and now comprising two species (the other being Halovibrio denitrificans) [11]
In 2002, Halomonas marina was transferred to its own genus Cobetia, [12] and in 2009 Halomonas marisflavi, Halomonas indalinina. and Halomonas avicenniae were transferred to a new genus called Kushneria (5 species)
Several singleton genera were created recently: in 2007, Halotalea alkalilenta was described, [13] Aidingimonas halophila in 2009, [14] Halospina denitrificans in 2006, [11] Modicisalibacter tunisiensis in 2009 [15] Salinicola socius in 2009. [16] To the latter genus two species were transferred Halomonas salaria as Salinicola salarius and Chromohalobacter salarius as Salinicola halophilus . [17]
The family also contain the recently discovered but uncultured bacterium "Candidatus Portiera aleyrodidarum" (primary endosymbionts of whiteflies [18] ).
Note: Species of Deleya and Halovibrio are now Halomonas
The names derives from Halomonas, which is the type genus of the family, plus the suffix -aceae, ending to denote a family [30]
Geomicrobiologist Felisa Wolfe-Simon with a NASA funded team is researching a particular strain the family Halomonadaceae, named GFAJ-1, isolated and cultured from sediments collected along the shore of Mono Lake, near Yosemite National Park in eastern California. [31] [32] This GFAJ-1 strain of Halomonadaceae can grow in the presence of high concentrations of arsenic. [33]
Chromohalobacter is a gram negative, oxidase and catalase positive, rod shaped, motile marine Pseudomonadota. It is commonly found in marine environments. Two species of Chromohalobacter was isolated from marine sponges of the Saint Martin's Island area of the Bay of Bengal, Bangladesh. Colonies are medium-sized, round and yellowish. It was established by Ventosa and others in 1989, with the reclassification of Chromobacterium marismortui as Chromohalobacter marismortui. As of 2007, it comprised the following species:
Halopiger is a genus of archaeans in the family Natrialbaceae that have high tolerance to salinity.
In taxonomy, Haloplanus is a genus of the Halobacteriaceae.
In taxonomy, Halovivax is a genus of the Natrialbaceae. Some species of Halovivax are halophiles and have been found in Iran's Aran-Bidgol hypersaline lake.
Natrinema is a genus of the Natrialbaceae.
Natronorubrum is a genus in the family Halobacteriaceae.
Aidingimonas is a genus in the phylum Pseudomonadota (Bacteria).
Dehalococcoidia is a class of Chloroflexota, a phylum of Bacteria. It is also known as the DHC group.
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 salexigens is a species of Gram-positive bacteria.
Guyparkeria is a genus in the Gammaproteobacteria. Both species are obligate aerobic bacteria; they require oxygen to grow. They are also halophilic and have varying degrees of thermophilicity. They live in environments with high concentrations of salt or other solutes, such as in hydrothermal vent plumes or in hypersaline playas, and do require high sodium ion concentrations in order to grow, as is also the case in the other genus of the same family, Thioalkalibacter
Piscibacillus is a genus of bacteria from the family of Bacillaceae.
Pontibacillus is a Gram-positive, spore-forming and strictly aerobic genus of bacteria from the family of Bacillaceae.
Virgibacillus marismortui is a Gram-positive, moderately halophilic and rod-shaped bacterium which has been isolated from water from the Dead Sea.
Modicisalibacter is a Gram-negative, non-spore-forming, aerobic, moderately halophilic and motile genus from the family of Halomonadaceae, with one known species.
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.
Kushneria avicenniae is a Gram-negative and moderately halophilic bacterium from the genus of Kushneria which has been isolated from surface of leaves from the mangrove Avicennia germinans.
Kushneria indalinina is a moderately halophilic, Gram-negative, aerobic and motile bacterium from the genus of Kushneria which has been isolated from a solar saltern from Cabo de Gata.
Kushneria marisflavi is a Gram-negative and halophilic bacterium from the genus of Kushneria which has been isolated from the Yellow Sea in Korea.
Salinicola halophilus is a gram negative, oxidase and catalase positive, motile, salt tolerant marine bacteria. S.I. Paul et al. (2021) isolated, characterized and identified Salinicola halophilus from marine sponges of the Saint Martin's Island area of the Bay of Bengal, Bangladesh.