Crenarchaeota Euryarchaeota

» ARCHAIC (ARCHAebacterial Information Collection)    Genome sequences of three Euryarchaeota species, Pyrococcus sp. OT3, Thermoplasma volcanium GSS1, and Archaeoglobus fulgidus, and related papers by the research group.    http://www.aist.go.jp/RIODB/archaic/

» Archaea    Short, simple introduction to these organisms.    http://www.microbe.org/microbes/archaea.asp

» Archaea (Archaebacteria)    Taxonomy, description, and extensive references, with particular emphasis on the Crenarchaeota (classified here as a Kingdom.)    http://tolweb.org/tree?group=Archaea&contgroup=Life

» Archaeal Diversity    Online textbook chapter from the University of Wisconsin, discussing various species and touching on some of the molecular characteristics that separate them from other life forms.    http://www.bact.wisc.edu/Microtextbook/index.php?name=Sections&req=listarticles&secid=10

» BBC News: Toughest Bug Reveals Genetic Secrets    Reports the decoding of the Pyrococcus abyssi, which lives in the intense pressure and temperature of black smoker vents on the seafloor.    http://news.bbc.co.uk/1/hi/sci/tech/399972.stm

» Distribution of Archaea in a Black Smoker Chimney Structure    Analysis of different communities in varied microhabitats of a deep-sea vent. Journal article from Applied and Environmental Microbiology    http://aem.asm.org/cgi/content/full/67/8/3618

» Domain Archaea    Systematic discussion of the various phyla within the Crenarchaea, Euryarchaeota, based on RNA differences.    http://comenius.susqu.edu/bi/202/ARCHAEA/

» Extremophiles Research Group    This group, based at the School of Biological Sciences at the University of Hong Kong, acts as a centre for research, teaching and outreach related to life in extreme environments.    http://www.extremophiles.net

» Genome News Network: New Amino acid Discovered in Methanosarcina barkeri    Reports on the discovery of a new amino acid, pyrrolysine, coded by UAG (normally a stop codon) in this methanogen.    http://www.genomenewsnetwork.org/articles/05_02/amino_acid.shtml

» German Jurgens: Molecular phylogeny of Archaea in boreal forest soil, freshwater and temperate estuarine sediment    Academic thesis on the unexpected organisms discovered by ribosomal analysis of non-extreme soil and water samples.    http://ethesis.helsinki.fi/julkaisut/maa/skemi/vk/jurgens/

» Horikoshi Superbugs    Summary of interesting organisms discovered during a search for extremophiles, including a picture of the triangular halophile Haloarcula japonicus.    http://www.jst.go.jp/erato/project/htkb_P/htkb_P.html

» Introduction to the Archaea    Covers their main groupings, chemical differences from other life forms, fossil record, and the structure of their cell walls.    http://www.ucmp.berkeley.edu/archaea/archaea.html

» Life in Extreme Environments    Links to information about thermophiles, halophiles, and other extremophiles both inside and outside of the domain Archaea.    http://www.astrobiology.com/extreme.html

» Open Questions: Archaea and Extremophiles    Annotated list of recommended sources.    http://www.openquestions.com/oq-bi002.htm

» Taxonomy Browser (Archaea)    Shows the relationships among the recognized groups, and samples yet to be named or classified.    http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?name=Archaea

» The Archaea    General introduction, mentioning most known genera and species of Euryarchaeota and Crenarchaeota. Includes some technical details such as toxin sensitivities.    http://www.earthlife.net/prokaryotes/archaea.html

» Wikispecies: Archaea    Taxonomy browser, with some links.    http://species.wikimedia.org/wiki/Archaea