Picrophilus

Picrophilus
Scientific classification
Domain: Archaea
Kingdom: Euryarchaeota
Phylum: Euryarchaeota
Class: Thermoplasmata
Order: Thermoplasmatales
Family: Picrophilaceae
Genus: Picrophilus
Binomial name
Picrophilus
Schleper et al. 1996
Species

In taxonomy, Picrophilus is an archaean genus of the family Picrophilaceae.[1]

Picrophilus is an extremely acidophilic genus within Euryarchaeota. These microbes are the most acidophilic organisms currently known,[2] with the ability to grow at a pH of -0.06.[3] They were first isolated from samples taken from acidic hot springs and dry hot soil in Hokkaido (Japan). They are obligate acidophiles and are unable to maintain their membrane integrity at pH values higher than 4. While phylogenetically related to other organisms within Thermoplasmata, unlike Thermoplasma and Ferroplasma, Picrophilus contains an S-layer cell wall.

References

  1. ↑ See the NCBI webpage on Picrophilus. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
  2. ↑ C.Michael Hogan. 2010. Extremophile. eds. E.Monosson and C.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment, Washington DC.
  3. ↑ Life in the Universe: Expectations and Constraints

Further reading

Scientific journals

  • Schleper C; Puhler G; Klenk HP; Zillig W (1996). "Picrophilus oshimae and Picrophilus torridus fam. nov., gen. nov., sp. nov., two species of hyperacidophilic, thermophilic, heterotrophic, aerobic archaea". Int. J. Syst. Bacteriol. 46 (3): 814&ndash, 816. doi:10.1099/00207713-46-3-814.
  • Schleper C; Puehler G; Holz I; Gambacorta A; et al. (1995). "Picrophilus gen. nov., fam. nov.: a novel aerobic, heterotrophic, thermoacidophilic genus and family comprising archaea capable of growth around pH 0". J. Bacteriol. 177 (24): 7050&ndash, 7059. PMC 177581. PMID 8522509.
  • Thuermer, Andrea; Voigt, Birgit; Angelov, Angel; Albrecht, Dirk; et al. (December 2011). "Proteomic analysis of the extremely thermoacidophilic archaeon Picrophilus torridus at pH and temperature values close to its growth limit". Proteomics. 11 (23): 4559–4568. doi:10.1002/pmic.201000829. PMID 22114103.

Scientific books

  • Madigan, M.T. & Martinko, J.M. (2005). Brock Biology of Microorganisms (11th ed.). Pearson Prentice Hall.

Scientific databases


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