Biology: Flora and Fauna: Monera: Archaea

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	Home: Biology: Flora and Fauna: Monera: Archaea LINKS: Microbe from Depths Takes Life to Hottest Known Limit http://www.nsf.gov/od/lpa/news/03/pr0384.htm A newly discovered organism thrives near deep-sea ocean vents at temperatures up to 121C, living off dissolved iron. Images, video, and links to related research. Press release from the National Science Foundation. Introduction to the Archaea http://www.ucmp.berkeley.edu/archaea/archaea.html Covers their main groupings, chemical differences from other life forms, fossil record, and the structure of their cell walls. ArchaeaWeb http://www.archaea.unsw.edu.au/ Links to popular press and journal articles, research news, and other sources of information about Archaea and extremophiles. Includes user comments. Taxonomy Browser (Archaea) http://www3.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?name=Archaea Shows the relationships among the reconginzed groups, and samples yet to be named or classified. Archaea http://www.archaea.ws/ Microbiological journal devoted to original research on the Archaea. Author guide, publication schedule, and text of older articles. Domain Archaea http://trishul.sci.gu.edu.au/~bharat/courses/ss13bmm/archaea.html Basic phylogeny, gene organization, and methods of DNA replication and transcription. Life in Extreme Environments http://www.astrobiology.com/extreme.html Links to information about thermophiles, halophiles, and other extremophiles both inside and outside of the domain Archaea. Archaea (Archaebacteria) http://tolweb.org/tree?group=Archaea&contgroup=Life Taxonomy, description, and extensive references, with particular emphasis on the Crenarchaeota (classified here as a Kingdom.) The Scientist: Hot-Vent Microbes: Looking Backward In Evolution For Future Uses http://www.the-scientist.com/yr1994/may/hotvent_940530.html Summary of research into the scientific uses of thermophiles and their heat-tolerant enzymes, such as PCR (polymerase chain reactions), toxic waste cleanup, and biomedical processes. [Free registration required] Microbial Wonders Of The Deep - Halophiles http://www.thesecondlayer.com/marine/halophiles.html Discusses the unique lipid composition of their cell walls, bacteriorhodopsin photosynthesis, and the use of high concentrations of potassium to combat sodium osmosis. Halobacteria http://www.science.siu.edu/microbiology/micr425/425Notes/09-Halobact.html Detailed discussion of the molecules involved in their cytoplasmic and photosynthetic membrane lipids, structural glycoproteins, ionic relationships, and photosynthetic cycle. Journal of Biological Chemistry: Extreme Halophiles Synthesize Betaine from Glycine by Methylation http://www.jbc.org/cgi/content/full/275/29/22196 Research on the methyltransferase enzymes involved in synthesis of glycine betaine in Actinopolyspora halophila and Ectothiorhodospira halochloris. Transfer of the relevant genes increased salt tolerance in E. coli. ARCHAIC (ARCHAebacterial Information Collection) http://www.aist.go.jp/RIODB/archaic/ Genome sequences of three Euryarchaeota species, Pyrococcus sp. OT3, Thermoplasma volcanium GSS1, and Archaeoglobus fulgidus, and related papers by the research group. Horikoshi Superbugs http://www.jst.go.jp/erato/project/htkb_P/htkb_P.html Summary of interesting organisms discovered during a search for extremophiles, including a picture of the triangular halophile Haloarcula japonicus.

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