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Topic: Archaeabacteria

Related Topics

Archaebacteria

Crenarchaeota

Euryarchaeota

Korarchaeota

Archaeoglobi

Halobacteria

Methanopyri

Nanoarchaeum

Scientific classification

	JOURNAL OF SYSTEMATIC BIOLOGY 7(2)
		The methods that were used in the cladistic analysis of the phylogeny of Archaeabacteria are found in the MacClade (Maddison and Maddison, 1992).
		This differs from the documentation of Margulis and Schwartz (1998) that separated the Archaeabacteria into two phyla, allowing the genera in the clade at point F to be interspersed within the genera in the clade at point A despite their absence of pseudomurein.
		Our taxonomy is a reclassification of 25 genera of the Archaeabacteria, which contrasts the one documented by Margulis and Schwartz (1998) in that we recognize four phyla as opposed to two.
	comenius.susqu.edu /bi/202/Journal/vol7/number2/Sporins.htm (2347 words)

	Evolution (Site not responding. Last check: 2007-11-02)
		Archaeabacteria were originally thought to be the oldest organisms on earth.
		Archaeabacteria seem to be more closely related to eukaryotes than eubacteria are, contrary to previous speculations.
		The domain concept is the idea that archaeabacteria and eubacteria evolved from a common ancestor, and from archaebacteria's branch came eukaryotes.
	208.147.72.17 /%7Ebernie/sciproject/project/Kingdoms/Bacteria4/Final/evolution.htm (180 words)

	Jupiter's moon Callisto makes a big splash
		These microbes called archaeabacteria, or simply "archaea", constitute a third branch of life on Earth, along with prokaryotes (normal bacteria) and eukaryotes (plants and animals).
		Like prokaryotes, the genetic material of archaeabacteria float freely throughout the cell -- they are not contained within the cell nucleus like eukaryotic organisms.
		The pink coloration is caused by halophilic (salt-loving) bacteria living in a thin layer of brine on the surface of the lake bed.
	science.msfc.nasa.gov /newhome/headlines/ast22oct98_2.htm (1213 words)

	EubactCellWall
		A. Eubacteria have 70s ribosomes, whereas archaeabacteria have 80s ribosomes.
		B. Eubacteria are eukaryotic and archaeabacteria are prokaryotic.
		C. Both eubacteria and archaeabacteria have peptidoglycan in their cell walls.
	www.csuchico.edu /biol/personnel/Hanne/GenBactNotes/Lect06EubactCellWall.html (621 words)

	Evolution and the origin of life
		Our other exhibit explains how we can observe mutations in bacteria directly.
		Archaeabacteria are a diverse group of bacteria (prokaryotes that do not have a nucleus) and are considered a major group unto themselves.
		This group is called the Archaea (from Greek, 'old') for short and to distinguish them from the other prokaryotes, all other bacteria are then called Eubacteria.
	www.bacteriamuseum.org /niches/evolution/evolution.shtml (787 words)

	Notes: Introduction to Microbiology (Site not responding. Last check: 2007-11-02)
		Systematics - recent research has resulted in questions about the placement of a group as diverse as prokaryotes into a single kingdom (as in the current five-kingdom system).
		Archaeabacteria - Use of molecular genetics prove that prokaryotes diverge into the archaea and eubacteria early in evolution (evidence in ribosomal RNA sequences in 16S, 18S ribosomal subunits)
		Proteobacteria \ / v Archaeabacteria \ / / 6.
	clnet.dyndns.org /microbio/n-intro.html (2206 words)

	BB 451/551 Oregon State University (Site not responding. Last check: 2007-11-02)
		Variants of phospholipids, from those discussed above, include the ether-derived phospholipids, such as are found in archaeabacteria (as well as in some eukaryotic tissues, such as lung).
		Ether phospholipids (structure HERE) have an advantage over normal phospholipids in that the ether linkage of the fatty acid to the glycoerol backbone is more resistant to hydrolysis.
		In addition (in archaeabacteria only), the side chains are branched instead of linear, providing protection against oxidation in the extreme conditions archaeabateria often are found.
	oregonstate.edu /instruction/bb551/winter2005/lecturenoteskevin/lipidsmemblecturenotes.html (2165 words)

	William Gillett Academy - Student - BioArchaeaBacteria
		But, when scientists began anaylizing the cells of these remarkable organisms in more detail, they made a very unexpected discovery.
		Archaeabacteria are both biochemically and genetically, as different from bacteria as they are from plants and animals.
		The cell wall is present, but does not contain peptidoglycan.
	www.k12.nf.ca /williamgillett/index.php/Student/BioArchaeaBacteria (190 words)

	CV Christophe Rouillon ANGLAIS (Site not responding. Last check: 2007-11-02)
		Young researcher (Ph.D.) in the Microbiology and biotechnology Laboratory of archaeabacteria; IFREMER (Brest – Brittany France).
		Laboratory of archaeabacteria; IFREMER (Brest – Brittany France).
		Study of the Pyrococcus abyssi Replication Protein A (RP-A): cloning, overexpression, purification and characterisation.
	www.ifremer.fr /drvvpmbe/page/otrpagean/cvrouillan.htm (401 words)

	Bio11.ChemoArchaea (Site not responding. Last check: 2007-11-02)
		Archaeabacteria Important Figures: Fig 14.1, 14.2, 14.11, 14.15, 14.23b Important Tables: Table 14.4, 14.9 Note: Focus on significance of those discussed in lecture.
		General Characteristics16s rRNA, no murein, different link of FA to glycerol, harsh/extreme environments.
		Extreme (Hyper)thermophilic - Temp optima above 100 C Volcanic areas, thermal vents Some break the rule: Chemolithotrophic anaerobes Low GC ration Survive autoclaving Chaperonins to refold denatured proteins.
	www.csuchico.edu /biol/personnel/Hanne/GenBactNotes/Lect23Archaea.html (182 words)

	VIRTUE Newsletter (Site not responding. Last check: 2007-11-02)
		The information guide, or lab manual is divided in sub-manuals on methanogens, halophiles and thermophiles.
		In the late 1970s and 1980s, research results uncovered fascinating information about the unique phylogeny and extraordinary metabolic properties of the Archaea (then called the Archaeabacteria).
		In July 1990, COMB (the Center for Marine Biotechnology) decided to host a workshop to discuss methods, protocols and future directions for research.
	nml.uib.no /virtue/newsletter/00_11/sci-robb/more-info/index.php (419 words)

	Biotechnology Research Institute - Environment
		The Environmental Bioengineering group is working at developing an effective technology for the biodegradation of recalcitrant compounds such as organochlorides, for example trichloroethene (TCE) and tetrachloroethene (PCE).
		The approach is based on intimate coupling of anaerobic and aerobic populations (namely methanotrophic bacteria and methanogenic archaeabacteria) for complete biodegradation of chlorinated solvents.
		The technology is equipped with a water electrolysis cell for supplying oxygen to the system.
	www.bri.nrc.gc.ca /rd/environment/envbioengineering/projects_e.html (490 words)

	Research Page of Alper Tunga Akarsubaşı (Site not responding. Last check: 2007-11-02)
		The term bacteria are widely used to define prokaryotic organisms; but molecular studies have shown that prokaryotes divided into two distinct groups (domain) as Bacteria and Archaea.
		The domain Archaea contains relatively small group of organisms, which classified as members of the kingdom Archaea (former Archaeabacteria).
		Members of this group include species that tend to live in extreme habitats like high salinity, high temperature, absence of oxygen etc.; due to that studies on Archaea is very restricted.
	hamlin.cc.boun.edu.tr /~akarsu/research1.html (429 words)

	[No title] (Site not responding. Last check: 2007-11-02)
		The bacteria at hydrothermal vents are so prolific, they are able to sustain the growth of many multicellular species, including a species of worm that can grow over six feet long.
		One organism responsible for sustaining this ecosystem is a prokaryote less than one micrometer in diameter, the archaeabacteria Methanococcus jannaschii.
		Some biologists believed that it would be better to have two groups to separate true bacteria from archaeabacteria, but it wasn’t until the first archaea’s genome was sequenced that strong evidence supported this case.
	www.kaitzi.com /GJ.doc (4634 words)

	Bacteria
		This has made them ubiquitous in the biosphere, both as free-living forms and as parasites in multicellular forms of life.
		Up until recently, the Archaea were considered part of Bacteria - the original term is "archaeabacteria" (ancient bacteria).
		Now it is generally accepted that the Archaea form a "third branch" of life, along with Bacteria, a.k.a.
	www.resa.net /nasa/bacteria.htm (1522 words)

	LookSmart - Archaeabacteria (Site not responding. Last check: 2007-11-02)
		Archaeabacteria - Learn about the taxonomy and physiology of the microorganisms composing Domain Archaea.
		We're always looking for ways to improve your search experience.
		Join the Zeal community and help build the "Archaeabacteria" Directory Category.
	shockwave.looksmart.com /eus317836/eus317914/eus53774/eus55996/eus330810/eus1000962/r?l&pin=030623x2c6a966219937dcf651& (105 words)

	Untitled Document (Site not responding. Last check: 2007-11-02)
		Which is more closely related to eukaryotic cells: archaeabacteria or eubacteria?
		Name the four phyla of archaeabacteria and some of their properties.
		If you went to the Dead Sea, what kind of archaeabacteria could be found there?
	208.147.72.17 /%7Ebernie/sciproject/project/Kingdoms/Bacteria4/Final/studyguide.htm (102 words)

	Quiz 8
		These types of bacteria are still found as stromatolites in shallow high salt areas where evaporation is common.
		Hydrothermal Vent Hypothesis-life formed from archaeabacteria around deep-ocean hydrothermal vents
		Evidence: archaeabacteria (sulfophiles, methanophiles) are believed to be the most ancient lineage of bacteria on earth.
	comenius.susqu.edu /bi/101/Lecture222002.htm (617 words)

	UB Department of Biological Sciences: Kiong Ho
		Recently we identified a second, novel RNA ligase (Rnl2) encoded by bacteriophage T4.
		Rnl2 defines a new family of RNA ligase, which include the trypanosome editing ligases and a group of putative RNA ligases encoded by eukaryotic DNA viruses and archaeabacteria.
		To address whether the Rnl2-like protein participates in RNA recombination or in a yet unknown repair process, genetic systems using the yeast is under development and would provide an in vivo functional assay for Rnl2-like proteins.
	www.nsm.buffalo.edu /%7Ekiongho (1022 words)

	Virology Journal \| Full text \| A new example of viral intein in Mimivirus
		Archaeal PolI inteins have been described only in extremophiles, growing under conditions of temperature over 80°C (hyperthermophiles) or of high salinity (10 times that of sea water; halophiles).
		Mimivirus is mesophilic, growing in amoeba under the temprature of 37°C. The association of an archaeal-seqeunce-like intein with a eukaryotic-like PolB in Mimivirus thus suggests an indirect interaction between mesophilic eukaryotic viruses and extremophilic archaeabacteria.
		Mesophilic euryarchaea species similar to the methanogens associated with rumen [21,22] or related species found in human beings [23] might have mediated the transition of inteins between extreme environment and moderate one in the course of evolution.
	www.virologyj.com /content/2/1/8 (3213 words)

	Classification System (Site not responding. Last check: 2007-11-02)
		We will focus on classification using 6 kingdoms.
		As in lab, we will not be discussing the organisms in K. Archaeabacteria too much in this course; the organisms in K. Archaeabacteria are a bit odd.
		So, for the rest of this lesson, when I discuss the major classes within our classification system, I am referring to:
	distance.stcc.edu /BIOL102/Lectures/lesson11/classification.htm (1025 words)

	Biogeochemical Diversity of Microbial Mats from Lower Kane Cave
		Samples of microbial mats were prepared for examination by scanning electron microscopy SEM), and major element analysis of the ashed residue using ICP-OES.
		Microbial community structure was characterized by standard culturing methods, examination of gross morphology by SEM, and PCR amplification of small-subunit rDNA using Eubacteria and Archaeabacteria specific probes.
		There are four principle springs discharging into LKC, with an average temperature of 22.6
	www.geo.utexas.edu /chemhydro/LowerKane/ISEB_abs.htm (723 words)

Archaea : Archaeabacteria (Site not responding. Last check: 2007-11-02)

Archaea : Archaeabacteria

Archaea : Archaeabacteria
article at Free Euro Online Encyclopedia

It uses material from the wikipedia article Archaea : Archaeabacteria.

www.eurofreehost.com /ar/Archaeabacteria_2.html (390 words)

	Slashdot \| Wikipedia Founder Jimmy Wales Responds
		Basically, they contact someone in a field and they can write basically anything they want and it goes in.
		Gary Olsen, who was my doctoral advisor, was contacted to write the World Book entry on Archaeabacteria.
		Now, he knows his stuff, and is honest, so it's a good article.
	interviews.slashdot.org /interviews/04/07/28/1351230.shtml (8494 words)

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Topic: Archaeabacteria

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