Haloarcula
| Haloarcula | |
|---|---|
| Scientific classification | |
| Domain: | Archaea |
| Kingdom: | Euryarchaeota |
| Phylum: | Euryarchaeota |
| Class: | Halobacteria |
| Order: | Halobacteriales |
| Family: | Halobacteriaceae |
| Genus: | Haloarcula |
| Binomial name | |
| Haloarcula Torreblanca et al. 1986 | |
| Species | |
| |
In taxonomy, Haloarcula is a genus of the Halobacteriaceae.
Description and significance
Haloarcula are extreme halophilic archaeons. They are distinguished from other genera in the Halobacteriaceae family by the presence of specific derivatives of TGD-2 polar lipids. There are currently seven recognized species in the genus: H. vallismortis, H. marismortui, H. hispanica, H. japonica, H. argentinensis, H. mukohataei, and H. quadrata. H. quadrata was first isolated when researchers were attempting to culture Haloquadratum walsbyi, a haloarchaeon that was thought to be unculturable until 2004.
Haloarcula grow optimally at 40–45 °C. Growth appears in sheets of 65 cells often in the shape of a square or triangle.
Ecology
Haloarcula are found in neutral saline environments like salt lakes, marine salterns, and saline soils. Like other members of the Halobacteriaceae family, Haloarcula require at least 1.5 M NaCl for growth, but grow optimally in 2.0 to 4.5 M NaCl.[1]
References
- ↑ See the NCBI webpage on Haloarcula. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
Further reading
Scientific journals
- Oren A, Ventosa A (2000). "International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Halobacteriaceae. Minutes of the meetings, 16 August 1999, Sydney, Australia". Int. J. Syst. Evol. Microbiol. 50: 1405–1407. PMID 10843089.
- Torreblanca M, Rodriquez-Valera F, Juez G, Ventosa A, Kamekura M, Kates M (1986). "Classification of non-alkaliphilic halobacteria based on numerical taxonomy and polar lipid composition, and description of Haloarcula gen. nov. and Haloferax gen.nov". Syst. Appl. Microbiol. 8: 89–99. doi:10.1016/s0723-2020(86)80155-2.
- Javor B, Requadt C, Stoeckenius W (1982). "Box-shaped halophilic bacteria". J. Bacteriol. 151 (3): 1532–1542. PMC 220435. PMID 6286602.
Scientific databases
- PubMed references for Haloarcula
- PubMed Central references for Haloarcula
- Google Scholar references for Haloarcula
External links
- NCBI taxonomy page for Haloarcula
- Search Tree of Life taxonomy pages for Haloarcula
- Search Species2000 page for Haloarcula
- MicrobeWiki page for Haloarcula
- LSPN page for Haloarcula