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Topic: Korarchaeota


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In the News (Tue 1 Dec 09)

  
  Spotlight on Nation   (Site not responding. Last check: 2007-11-04)
Korarchaeota is notorious for its citizens' infidelity, citizens are enjoying a recent large cut in taxes, large areas of Korarchaeota are not accessible by the public, and anti-environmentalist protesters are gunned down without mercy.
Korarchaeota's national animal is the grue, which is also the nation's favorite main course, and its currency is the pebble.
Korarchaeota is ranked 278th in the region and 93,909th in the world for Smartest Citizens.
www.nationstates.net /-1/page=display_nation/nation=korarchaeota   (183 words)

  
 archaea
At the same time, the features of archaea generally resemble the features of eukaryotes and bacteria more than they do each other, suggesting that archaea may lie close to the root of the terrestrial tree of life (see life, origin).
Korarchaeota, in particular, have been singled out as the closest organisms yet found to the universal ancestor.
It may be that archaea, and other varieties of extremophiles, are commonly the first to colonize young planets and that as time goes by they retreat to those regions, such as hydrothermal vents and subsurface rocks, where primordial environments remain.
www.daviddarling.info /encyclopedia/A/archaea.html   (421 words)

  
 Korarchaeota - Wikipedia, the free encyclopedia
The Korarchaeota are a group of Archaea known only from 16S rRNA gene sequences obtained from samples of high temperature hydrothermal environments.
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 genome of one Korarchaeota that was enriched from a mixed culture is now being sequenced (http://www.jgi.doe.gov/sequencing/why/CSP2006/korarchaeota.html).
en.wikipedia.org /wiki/Korarchaeota   (137 words)

  
 The Archaea
The Archaea are a diverse and fascinating group of micro-organisms and the Korarchaeota (one of the group's main divisions) may contain the most ancient of living things and therefore are the closest thing we have to our original 'ancestral organism'.
The Archaea are divided into 3 main groups called Euryarchaeota, Crenarchaeota and Korarchaeota.
Korarchaeota are a recently discovered group of Archaea.
www.earthlife.net /prokaryotes/archaea.html   (888 words)

  
 [No title]
actccggttg atcctgccgg korarchaeota ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~gg aquifex_pyrophilus..........
.......ttt cgctctcggg..gggtcgaa 951 1000 pyrodictium_occultum gggaagccgt taagcccgcc gcctggggag tacggccgca aggctgaaac korarchaeota gcgaaggcat taagccggcc gcctgaggag tacggccgca aggctgaaac aquifex_pyrophilus gctaacgcgt taagcgcccc gcctggggag tacgggcgca agcctgaaac thermus_aquaticus gctaacgcgt taagcgcgcc gcctggggag tacggccgca aggctgaaac ancestral sequence gctaacgcgt taagcgcgcc gcctggggag tacggccgca aggctgaaac 1001 1050 pyrodictium_occultum ttaaaggaat tggcggggna gcaccacaag gggtgga.gc ctgcggctta korarchaeota ttgaaggaat tgacgggggg gcaccacaag gggtgaatgc ctgcggctta aquifex_pyrophilus tcaaaggaat tggcggggg.
1601 1648 pyrodictium_occultum gtcgtaacaa ggtagccgta ggggaacctg cggctggatc acctcct~ korarchaeota ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~ aquifex_pyrophilus ccggcgactg gggcgaagtc gtaacaaggt agccgtaggg gaacctgc thermus_aquaticus cccgtgactg gggcgaagtc gtaacaaggt agctgtaccg ~~~~~~~~ ancestral sequence..........
www.stat.wisc.edu /~yklee/newton/seq04/newalign4   (333 words)

  
 JGI - Why Sequence a Korarchaeota Community?   (Site not responding. Last check: 2007-11-04)
The primary goal of this project is to sequence the genome of an organism that represents what could be one of the least evolved lineages of modern life that has been detected in nature so far.
To date, there are no representatives of the Korarchaeota in pure culture, and nothing is known about their properties.
The enrichment community has been phylogenetically characterized and is known to comprise a relatively low diversity of other hyperthermophilic archaea and bacteria.
www.jgi.doe.gov /sequencing/why/CSP2006/korarchaeota.html   (274 words)

  
 [No title]
...gctcagg gtgaacgctg 101 150 pyrodictium_occultum gcccgaccgc tatcggggtg ggactaagcc atgggagtcg tgcgcccccg korarchaeota agggaacccc tatcgggttc agactaagcc atgcaagtcg gctgggggca aquifex_pyrophilus gcggcgtgcc taacacatgc aagtcgtgcg caggctcgct ccctctggga thermus_aquaticus gcggcgtgcc taagacatgc aagtcgtg..
.......ctg ggttatctgg..gggccgaa 951 1000 pyrodictium_occultum gggaagccgt taagcccgcc gcctggggag tacggccgca aggctgaaac korarchaeota gcgaaggcat taagccggcc gcctgaggag tacggccgca aggctgaaac aquifex_pyrophilus gctaacgcgt taagcgcccc gcctggggag tacgggcgca agcctgaaac thermus_aquaticus gctaacgcgt taagcgcgcc gcctggggag tacggccgca aggctgaaac 1001 1050 pyrodictium_occultum ttaaaggaat tggcggggna gcaccacaag gggtgga.gc ctgcggctta korarchaeota ttgaaggaat tgacgggggg gcaccacaag gggtgaatgc ctgcggctta aquifex_pyrophilus tcaaaggaat tggcggggg.
gcgggtgaag 1251 1300 pyrodictium_occultum gggggcacac tagggggact gccgncgtcc aaggcggagg aaggaggggg korarchaeota ccgggcaaac tagggggacc gcctccg.aa gaggaggagg aaggtggggg aquifex_pyrophilus gggagcactc tagggggacc gccggcg.at aagccggagg aaggggggga thermus_aquaticus ccgggcactc taacgggact gcctgcg.a.
www.stat.wisc.edu /~yklee/newton/seq04/spec4raw   (280 words)

  
 Genome Biology | Full text | Oldest archaea?
These sequences were difficult to place phylogenetically, even when full-length SSU rRNA sequences became available, and are either very deeply branching crenarchaeotes, or an entirely new division of archaea (which they called 'korarchaeota'), or even a sister group to the Eukaryota.
One very encouraging sign is that these new sequences consistently appear as basal to the Korarchaeota, which have previously been claimed to be the most basal archaea, and the position of the groups is stable across a number of different phylogenetic analyses.
Bootstrap support is fairly low (between 60 and 70% in the different trees presented), but this would be expected for a deep branch in a SSU rRNA phylogeny.
genomebiology.com /2000/1/6/reports/0076   (954 words)

  
 Important Groups of Procaryotes
However, for the Korarchaeota, only their nucleic acids have been detected, and no organisms have been isolated or cultured.
Based on their physiology, the Archaea can be organized into three types: methanogens (procaryotes that produce methane); extreme halophiles (procaryotes that live at very high concentrations of salt (NaCl); and extreme (hyper) thermophiles (procaryotes that live at very high temperatures).
None of the Korarchaeota have been cultured in the laboratory, although information about them can be inferred from their genome structure.
textbookofbacteriology.net /procaryotes.html   (9535 words)

  
 Open Directory - Science:Biology:Flora and Fauna:Monera   (Site not responding. Last check: 2007-11-04)
Some taxonomies place them in a domain of their own, based on the differences between their genetic code and those of the Eukaryotes and Prokaryotes.
Thus, the main divisions within the Archaea (Crenarchaea, Euryarchaeota, and sometimes others such as Korarchaeota and Nanoarchaeota) are variously described as kingdoms, phyla, or even classes.
Bacteria have traditionally been identified and classified by shape, on the basis of their biochemistry, and/or the conditions under which they grow.
dmoz.org /Science/Biology/Flora_and_Fauna/Monera/desc.html   (203 words)

  
 16S rRNA Phylogenetic Investigation of the Candidate Division "Korarchaeota" -- Auchtung et al. 72 (7): 5077 -- Applied ...
16S rRNA Phylogenetic Investigation of the Candidate Division "Korarchaeota" -- Auchtung et al.
National Park hot springs and a 9°N East Pacific Rise deep-sea
sequences suggest that Korarchaeota exhibit a high level of
aem.asm.org /cgi/content/abstract/72/7/5077   (161 words)

  
 The Accidental Weblog
But there’s another sequencing project underway (or so say my search engines) that’s got me easily as intrigued.
Looks from this page here as though someone’s sequenced a Korarchaeota community… tho’ it’s not yet been released into public databases.
Korarchaeota, for you folk who might be wondering, is an as-yet barely known species of Archaea which may be the least diverged known extant organism from the most recent common ancestor of all life.
accidentalweblog.org /index.php?catid=2   (2441 words)

  
 prokaryotes   (Site not responding. Last check: 2007-11-04)
Also herein, some prokaryotes are in more than one group, and some groups consist of both Archaea and Bacteria.
Based on their physiology, the Archaea can be organized into three types: methanogens (prokaryotes that produce methane); extreme halophiles (prokaryotes that live at very high concentrations of salt (NaCl); and extreme (hyper) thermophiles (prokaryotes that live at very high temperatures).
Methanogens are obligate anaerobes that will not tolerate even brief exposure to air (O
www.chs.edu.sg /~chungwc/Resources_prokaryotes.htm   (8703 words)

  
 Not really sure what North American aboriginal groups want? - jolt.co.uk public forums   (Site not responding. Last check: 2007-11-04)
And I think (though admittedly, I really ought to know more about this) that the original treaties weren't about ceding land, but more about living parallel lives, where whites and Iroquois would need to accept the other's soverignity.
Last edited by Korarchaeota : 02-06-2006 at 9:52 PM.
Reason: because i do know how to spell Iroquois...
forums.jolt.co.uk /showthread.php?threadid=485806   (1748 words)

  
 [No title]   (Site not responding. Last check: 2007-11-04)
COMPARING RRNA SEQUENCES IN KORARCHAEOTA AND UNCLASSIFIED METHANOGEN SPECIES WITH MODERN DAY PHYLOGENIES
Michael Coco York College of Pennsylvania, Department of Biological Sciences Currently, there is still debate over the conditions surrounding the first organisms and the divergence of eukaryotes and archaea.
Greater knowledge in this field could facilitate future experiments exploring endosymbiosis and the evolution of the first eukaryotes.
www.ycp.edu /scholarshipday/abstract2003/pos007.htm   (239 words)

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