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Topic: Nanoarchaeum

Related Topics

Nanoarchaeota

Archaeabacteria

Korarchaeota

Crenarchaeota

Archaea

Archaeoglobi

Euryarchaeota

Biological cell

Pelagibacter ubique

Methanopyri

Colony (biology)

Halobacteria

Mycoplasma genitalium

Eubacteria

Black smoker

	Nanoarchaeum - Wikipedia, the free encyclopedia
		Nanoarchaeum equitans is a species of tiny microbe, discovered in 2002 in a hydrothermal vent off the coast of Iceland by Karl Stetter.
		Nanoarchaeum appears to be an obligatory symbiont on the archaeon Ignicoccus; it must be in contact with the host organism to survive.
		Genetically, Nanoarchaeum is peculiar in that its 16S rDNA sequence is undetectable by the most common methods.
	en.wikipedia.org /wiki/Nanoarchaeum (477 words)

	The Wedge Update: May 31, 2002
		Dubbed Nanoarchaeum equitans, the bug has been classed among the Archaea, one of life's three major divisions (the others being the Bacteria and Eukaryota--which includes organisms with nucleated cells, such as humans).
		Nanoarchaeum, Mycoplasma genitalium and other microbes of their genome size are either parasites or symbionts.
		Thus it is unreasonable to say-even tentatively-that Nanoarchaeum resembles an intermediate between viruses and "the smallest living organisms." For its simplicity testifies not to its own primitive status, but to the sophistication and complexity of the world on which it depends.
	www.arn.org /docs/wedge/mh_wedge_020531.htm (1068 words)

	World's Smallest Organism Rides a Fire Ball \| Germany \| Deutsche Welle \| 03.05.2002
		The Nanoarchaeum belongs to a group of so-called archae-bacteria (hence the Latin suffix).
		The scientists in Regensburg are convinced that their discovery of the "riding dwarf" is a breakthrough in understanding the biological history of the earth.
		But Nanoarchaeum equitans is so "completely different from everything else", Professor Stetter says, that it forms a new group under the archae-bacteria.
	www.dw-world.de /popups/popup_printcontent/0,,511437,00.html (691 words)

	Astrobiology Magazine
		With the genome soon to be published, Nanoarchaeum equitans may take the title of the world's simplest organism.
		But their rRNA differs from that of Nanoarchaeum equitans enough to place them in different families, hinting at a large, widespread group of previously overlooked organisms.
		Nanoarchaeum sits, Stetter says, very deep in the tree of life, an indication that members of the phylum may resemble the earliest cells and the earliest common ancestor of all life on earth.
	www.astrobio.net /news/print.php?sid=332 (1188 words)

	Arbeitsgruppe H.Huber - Mikrobiologie/Archaeenzentrum
		The analysis of the genome of Nanoarchaeum equitans revealed that its size is only about 490,000 base pairs and therefore the smallest archaeal genome and one of the smallest of all prokaryotic cells.
		The growth requirements of Nanoarchaeum equitans – temperatures up to 100 °C, no oxygen in the atmosphere, use of sulfur and volcanic gases - are in line with the environmental conditions of the ancient Earth, about 3.8 billon years ago.
		Therefore, Nanoarchaeum equitans may probably represent a quite primitive form of live, possible even a kind of living fossil from the very beginning of live on Earth.
	www.biologie.uni-regensburg.de /Mikrobio/Thomm/E/hhuber.htm (625 words)

	Discovery of undersea creature leads to new archaeal phylum (Site not responding. Last check: 2007-10-22)
		The creature, named Nanoarchaeum equitans, is a member of the Archaea, the domain of life that is separate from plants, animals, and bacteria.
		The name Nanoarchaeum equitans means 'riding the fire sphere.' The microbe is spherical and tiny—only 400 nanometers in diameter (a nanometer is one-billionth of a meter).
		The precise evolutionary and phylogenetic position of Nanoarchaeum among the archaea is unclear and will have to be determined by future studies, according to Yan Boucher and W. Ford Doolittle of Dalhousie University in Halifax, Nova Scotia, who wrote a News and Views piece accompanying the study.
	www.genomenewsnetwork.org /articles/05_02/undersea_creature.shtml (483 words)

	Learn more about Nanoarchaeum in the online encyclopedia. (Site not responding. Last check: 2007-10-22)
		Learn more about Nanoarchaeum in the online encyclopedia.
		Hint: Play with putting spaces before and after your words to see the different results you get.
		Genetically, Nanoarchaeum is sufficiently peculiar that its DNA sequence is undetectable by the most common methods.
	www.onlineencyclopedia.org /n/na/nanoarchaeum.html (180 words)

	Archaea - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-22)
		Archaea are divided into two main groups based on rRNA trees, the Euryarchaeota and Crenarchaeota.
		Two other groups have been tentatively created for certain environmental samples and the peculiar species Nanoarchaeum equitans, discovered in 2002 by Karl Stetter, but their affinities are uncertain.
		Woese argued that the bacteria, archaea, and eukaryotes each represent a primary line of descent that diverged early on from an ancestral progenote with poorly-developed genetic machinery.
	www.sciencedaily.com /encyclopedia/archaea (1222 words)

	Nanoarchaeum: Encyclopedia topic (Site not responding. Last check: 2007-10-22)
		Its cells are only 400 nm (nm: A state in southwestern United States on the Mexican border) in diameter and its genome only half a million bases long, both considerably smaller than those of other known organisms.
		Genetically, Nanoarchaeum is sufficiently peculiar in that its 16S rDNA (DNA: (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information) sequence is undetectable by the most common methods.
		It has been given its own phylum (phylum: (biology) the major taxonomic group of animals and plants; contains classes), called Nanoarchaeota, which is somewhat tentatively placed among the Archaea (Archaea:...
	www.absoluteastronomy.com /reference/nanoarchaeum (133 words)

	JGI Ignicoccus sp. Kin4-I Home
		The organism that defined this new phylum, Nanoarchaeum equitans, was isolated from a submarine hydrothermal system of the coast of Iceland.
		This seems somewhat paradoxical, since the Nanoarchaeum genome is so much reduced, reflecting perhaps some strong selection pressure for maintaining certain genes aquired form its host and deleting some of its own.
		Based on the available Ignicoccus sequence data, no cases of lateral gene transfer from Nanoarchaeum were found so far.
	genome.jgi-psf.org /draft_microbes/ign_k/ign_k.home.html (765 words)

	Gene Transfers from Nanoarchaeota to an Ancestor of Diplomonads and Parabasalids -- Andersson et al. 22 (1): 85 -- ...
		Nanoarchaeum equitans is an enigmatic symbiont that attaches
		The fact that Nanoarchaeum is the only archaeal genome (among
		The genome of Nanoarchaeum equitans: insights into early archaeal evolution and derived parasitism.
	mbe.oxfordjournals.org /cgi/content/full/22/1/85 (3433 words)

	Nanoarchaeota: New life under the sea (Site not responding. Last check: 2007-10-22)
		Invisible to the naked eye, a tiny microbe living on another microbe has recently been discovered in the sea.
		Considering the small size and minimalist genome, the researchers named the new organism Nanoarchaeum equitans.
		The electron micrographs helped the researchers identify N.
	www.genomenewsnetwork.org /articles/05_02/undersea_art.shtml (138 words)

	The genome of Nanoarchaeum equitans: Insights into early archaeal evolution and derived parasitism -- Waters et al. 100 ...
		The genome of Nanoarchaeum equitans: Insights into early archaeal evolution and derived parasitism -- Waters et al.
		The hyperthermophile Nanoarchaeum equitans is an obligate symbiont
		The heteromeric Nanoarchaeum equitans splicing endonuclease cleaves noncanonical bulge-helix-bulge motifs of joined tRNA halves
	www.pnas.org /cgi/content/abstract/100/22/12984 (903 words)

	Aragorn Results on Nanoarchaeum equitans
		Nanoarchaeum_equitans_Kin4-M 7 225624 225716 Ile TAT 225662 225680 86.96
		This is the information from tRNAscan-SE Analysis of the Nanoarchaeum equitans Genome:
		Nanoarchaeum_equitans_Kin4-M 12 327362 327500 Met CAT 327399 327464 76.97
	www.cse.ucsc.edu /~dmng/aragornNanoEquitans.html (775 words)

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