Korarchaeota

Korarchaeota
Scanning electron micrograph of the Obsidian Pool enrichment culture, showing Korarchaeota.
Scientific classification
Domain:	Archaea
Kingdom:	Korarchaeota
Phylum:	Korarchaeota
Genus
environmental samples
Synonyms
Korarchaeota Barns et al. 1996 Xenarchaea Xenarchaeota

In taxonomy, the Korarchaeota are a phylum of the Archaea.

The Korarchaeota are a group of Archaea known only from 16S rRNA gene sequences obtained from samples of high temperature hydrothermal environments. Analysis of their 16S rRNA gene sequences suggests that they are not a member of the main archaeal groups, Crenarchaeota and Euryarchaeota. However, it is possible that Korarchaeota do not actually form a separate group, but are simply organisms where the 16S rRNA genes have undergone rapid or unusual mutations. The metabolic processes of Korarchaeota, including how they generate energy and obtain carbon, are currently unknown. The genome of one korarchaeote that was enriched from a mixed culture is now being sequenced.

Further reading

Scientific journals

• Stackebrandt, E (2002). "Report of the ad hoc committee for the re-evaluation of the species definition in bacteriology". Int. J. Syst. Evol. Microbiol. 52: 1043–1047. doi:10.1099/ijs.0.02360-0. PMID 12054223. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Gurtler, V (2001). "Genomic approaches to typing, taxonomy and evolution of bacterial isolates". Int. J. Syst. Evol. Microbiol. 51: 3–16. PMID 11211268. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Dalevi, D (2001). "A multiple-outgroup approach to resolving division-level phylogenetic relationships using 16S rDNA data". Int. J. Syst. Evol. Microbiol. 51: 385–391. PMID 11321083. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Keswani, J (2001). "Relationship of 16S rRNA sequence similarity to DNA hybridization in prokaryotes". Int. J. Syst. Evol. Microbiol. 51: 667–678. PMID 11321113. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Young, JM (2001). "Implications of alternative classifications and horizontal gene transfer for bacterial taxonomy". Int. J. Syst. Evol. Microbiol. 51: 945–953. PMID 11411719.

• Christensen, H (2001). "Is characterization of a single isolate sufficient for valid publication of a new genus or species? Proposal to modify recommendation 30b of the Bacteriological Code (1990 Revision)". Int. J. Syst. Evol. Microbiol. 51: 2221–2225. PMID 11760965. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Christensen, H (2000). "DNA-DNA hybridization determined in micro-wells using covalent attachment of DNA". Int. J. Syst. Evol. Microbiol. 50: 1095–1102. PMID 10843050. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Xu, HX (2000). "A rapid method for determining the G+C content of bacterial chromosomes by monitoring fluorescence intensity during DNA denaturation in a capillary tube". Int. J. Syst.Evol. Microbiol. 50: 1463–1469. PMID 10939651. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Young, JM (2000). "Suggestions for avoiding on-going confusion from the Bacteriological Code". Int. J. Syst. Evol. Microbiol. 50: 1687–1689. [No abstract available. PMID 10939677.

• Hansmann, S (2000). "Phylogeny of 33 ribosomal and six other proteins encoded in an ancient gene cluster that is conserved across prokaryotic genomes: influence of excluding poorly alignable sites from analysis". Int. J. Syst. Evol. Microbiol. 50: 1655–1663. PMID 10939673. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Tindall, BJ (1999). "Proposal to change the Rule governing the designation of type strains deposited under culture collection numbers allocated for patent purposes". Int. J. Syst. Bacteriol. 49: 1317–1319. PMID 10490293.

• Tindall, BJ (1999). "Proposal to change Rule 18a, Rule 18f and Rule 30 to limit the retroactive consequences of changes accepted by the ICSB". Int. J. Syst. Bacteriol. 49: 1321–1322. PMID 10425797.

• Tindall, BJ (1999). "Misunderstanding the Bacteriological Code". Int. J. Syst. Bacteriol. 49: 1313–1316. PMID 10425796.

• Tindall, BJ (1999). "Proposals to update and make changes to the Bacteriological Code". Int. J. Syst. Bacteriol. 49: 1309–1312. PMID 10425795.

• Palys, T (1997). "Discovery and classification of ecological diversity in the bacterial world: the role of DNA sequence data". Int. J. Syst. Bacteriol. 47: 1145–1156. PMID 9336922. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Euzeby, JP (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". Int. J. Syst. Bacteriol. 47: 590–592. PMID 9103655.

• Burggraf, S (1997). "A pivotal Archaea group". Nature. 385: 780. doi:10.1038/385780a0. PMID 9039908. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Barns, SM (1996). "Perspectives on archaeal diversity, thermophily and monophyly from environmental rRNA sequences". Proc. Natl. Acad. Sci. USA. 93: 9188–9193. doi:10.1073/pnas.93.17.9188. PMID 8799176. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Clayton, RA (1995). "Intraspecific variation in small-subunit rRNA sequences in GenBank: why single sequences may not adequately represent prokaryotic taxa". Int. J. Syst. Bacteriol. 45: 595–599. PMID 8590690. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Barns, SM (1994). "Remarkable archaeal diversity detected in a Yellowstone National Park hot spring environment". Proc. Natl. Acad. Sci. USA. 91: 1609–1613. doi:10.1073/pnas.91.5.1609. PMID 7510403. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Murray, RG (1994). "Taxonomic notes: a proposal for recording the properties of putative taxa of procaryotes". Int. J. Syst. Bacteriol. 44: 174–176. PMID 8123559. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Winker, S (1991). "A definition of the domains Archaea, Bacteria and Eucarya in terms of small subunit ribosomal RNA characteristics". Syst. Appl. Microbiol. 14: 305–310. PMID 11540071. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Woese, CR (1990). "Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya". Proc. Natl. Acad. Sci. USA. 87: 4576–4579. doi:10.1073/pnas.87.12.4576. PMID 2112744. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Achenbach-Richter, L (1988). "The ribosomal gene spacer region in archaebacteria". Syst. Appl. Microbiol. 10: 211–214. PMID 11542149. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• McGill, TJ (1986). "Characteristic archaebacterial 16S rRNA oligonucleotides". Syst. Appl. Microbiol. 7: 194–197. PMID 11542064. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Woese, CR (1984). "The phylogenetic relationships of three sulfur dependent archaebacteria". Syst. Appl. Microbiol. 5: 97–105. PMID 11541975. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

• Woese, CR (1977). "Phylogenetic structure of the prokaryotic domain: the primary kingdoms". Proc. Natl. Acad. Sci. USA. 74: 5088–5090. doi:10.1073/pnas.74.11.5088. PMID 270744. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)