Pyrobaculum aerophilum

Pyrobaculum aerophilum is a single-celled microorganism in the genus Pyrobaculum. The first Pyrobaculum species to be sequenced was P. aerophilum. It is a rod-shaped hyperthermophilic archaeum first isolated from a boiling marine water hole at Maronti Beach, Ischia. It forms characteristic terminal spherical bodies (so called "golf clubs") like Thermoproteus and Pyrobaculum. Its type strain is IM2; DSM 7523).[1] Its optimum temperature for growth is around boiling point for water.[2] Its optimum pH for growth is 7.0. Sulfur was found to inhibit its growth.[1]

Pyrobaculum aerophilum
Scientific classification
Domain:
Archaea
Kingdom:
Crenarchaeota
Phylum:
Crenarchaeota
Class:
Thermoprotei
Order:
Thermoproteales
Family:
Thermoproteaceae
Genus:
Pyrobaculum
Species:
P. aerophilum
Binomial name
Pyrobaculum aerophilum
Völkl et al., 1993

Its circular genome sequence is 2,222,430 Bp in length and contains 2605 protein-coding sequences (CDS). It is capable of aerobic respiration. Its name references this ability: aerophilum coming from the Greek: ἀήρ ("aero"), meaning air, and φιλο (philo), meaning loving. It produces colonies that are round and greyish yellow. It uses both organic and inorganic compounds during respiration.[1][3]

Whole genome analysis demonstrated that it lacks 5' untranslated regions in its mRNAs. This implies that it does not employ the Shine-Delgarno sequence to initiate protein synthesis.[4]

References
  1. Völkl P; Huber R; Drobner E; et al. (September 1993). "Pyrobaculum aerophilum sp. nov., a novel nitrate-reducing hyperthermophilic archaeum". Applied and Environmental Microbiology. 59 (9): 2918–26. PMC 182387. PMID 7692819. Retrieved 2013-07-25.
  2. Ausili, Alessio; Vitale, Annalisa; Labella, Tullio; Rosso, Francesco; et al. (2012). "Alcohol dehydrogenase from the hyperthermophilic archaeon Pyrobaculum aerophilum: Stability at high temperature". Archives of Biochemistry and Biophysics. 525 (1): 40–46. doi:10.1016/j.abb.2012.05.019. ISSN 0003-9861. PMID 22683471.
  3. Cozen, A. E.; Weirauch, M. T.; Pollard, K. S.; Bernick, D. L.; et al. (2008). "Transcriptional Map of Respiratory Versatility in the Hyperthermophilic Crenarchaeon Pyrobaculum aerophilum". Journal of Bacteriology. 191 (3): 782–794. doi:10.1128/JB.00965-08. ISSN 0021-9193. PMC 2632070. PMID 19047344.
  4. Fitz-Gibbon, Sorel T.; Ladner, Heidi; Kim, Ung-Jin; Stetter, Karl O.; Simon, Melvin I.; Miller, Jeffrey H. (2002-01-22). "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum aerophilum". Proceedings of the National Academy of Sciences of the United States of America. 99 (2): 984–989. Bibcode:2002PNAS...99..984F. doi:10.1073/pnas.241636498. ISSN 0027-8424. PMC 117417. PMID 11792869.

Further reading


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