Picrophilus Explained

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 less than 0.5.^[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 above 4. While phylogenetically related to other organisms within Thermoplasmata, unlike Thermoplasma and Ferroplasma, Picrophilus contains an S-layer cell wall.

See also

• List of Archaea genera

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 . 814 - 816 . 10.1099/00207713-46-3-814 . 3 . free .
• Schleper C . 4 . Puehler G . Holz I . Gambacorta A . Janekovic D . Santarius U . Klenk HP . Zillig W . 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 . 7050 - 7059 . 8522509 . 24 . 177581 . 10.1128/jb.177.24.7050-7059.1995.
• Thuermer. Andrea. 4. Voigt. Birgit. Angelov. Angel. Albrecht. Dirk. Hecker. Michael. Liebl. Wolfgang. Proteomic analysis of the extremely thermoacidophilic archaeon Picrophilus torridus at pH and temperature values close to its growth limit. Proteomics. December 2011. 11. 23. 4559–4568. 22114103. 10.1002/pmic.201000829. 25035919.

Scientific books

• Book: Madigan, M.T. . Martinko, J.M. . amp . Brock Biology of Microorganisms . 11th . Pearson Prentice Hall . 2005 .

External links

• Picrophilus at Lifemap NCBI Version
• Picrophilaceae at OneZoom
• Picrophilus at LifeGate

Notes and References

1. See the NCBI webpage on Picrophilus. Data extracted from the Web site: NCBI taxonomy resources . . 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. https://books.google.com/books?id=qdjoTGAvrkkC&dq=picrophilus+%22-0.06%22&pg=PA57 Life in the Universe: Expectations and Constraints