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Topic: Pelagibacter ubique

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	MBARI - Pelagibacter ubique: A perfect engineering solution?
		Pelagibacter ubique is arguably the most abundant organism in seawater, where it accounts for approximately 25% of all microbial plankton cells. During summer periods it may exceed 50% of the cells in the surface waters of temperate ocean gyres.
		Pelagibacter cultures are routinely propagated in autoclaved seawater, where they attain cell densities that are typical of native populations (ca.
		Pelagibacter ubique is the first cultured bacterial isolate to exhibit the PR genes discovered by Bejá, Delong, and coworkers, and the only experimental choice at present for understanding how light-dependent proton pumps influence the efficiency of dissolved organic carbon (DOC) assimilation by heterotrophic bacteria in the ocean surface.
	www.mbari.org /seminars/2005/spring2005/april15_giovannoni.htm (432 words)

	WorldChanging: Tools, Models and Ideas for Building a Bright Green Future: Genetic Efficiency and the Carbon Cycle
		The mass of Pelagibacter ubique outweighs the combined weight of all the fish in the sea.
		Pelagibacter feeds off dead organic matter that is dissolved in ocean water - lead researcher Stephen Giovannoni of Oregon State University likens it to a very thin chicken soup.The dissolved carbon is always there, so there is no need to build in special metabolic circuits to adjust between periods of feast and famine.
		Pelagibacter ubique's role in the carbon cycle is only now becoming clear.
	www.worldchanging.com /archives/003334.html (475 words)

	Pelagibacter ubique Information
		The bacteria responsible were isolated in 2002 and given a specific name, although it has not yet been validly published according to the bacteriological code.
		Pelagibacter has a world-wide distribution and is found among the bacterioplankton.
		Pelagibacter has just 1,354 genes, compared to humans, which have around 30,000 genes.
	www.bookrags.com /wiki/Pelagibacter_ubique (213 words)

	[No title]
		SAR11 is the numerically dominant microorganism in the ocean surface.
		One of our main research efforts is understanding the role of proteorhodopsin in the metabolism of Pelagibacter ubique.
		In addition, laboratory experiments are currently underway to compare Pelagibacter ubique grown under light and dark conditions.
	www.mcb.oregonstate.edu /giovannoni/projects/subproject/sar11.htm (199 words)

	DOE Genomes to Life Contractor-Grantee Workshop 2005
		The alphaproteobacterium SAR11, now known as Pelagibacter ubique, is arguably the most abundant organism in the oceans, where it accounts for approximately 25% of all microbial plankton cells.
		Pelagibacter plays a key role in the oxidation of the oceanic dissolved organic carbon pool, which is approximately equivalent in size to the atmospheric carbon dioxide pool.
		The Pelagibacter genome is almost exactly the size of the genomes of the obligate intracellular parasites R.
	genomicsgtl.energy.gov /pubs/2005abstracts/html/file71.shtml (473 words)

	Геном Pelagibacter ubique – далеко не самый компактный - Медицинская ...
		Геном Pelagibacter ubique – далеко не самый компактный - Медицинская библиотека сервера MedLinks.ru
		Новости медицины: Геном Pelagibacter ubique – далеко не самый компактный
		Кроме того, Pelagibacter ubique играет исключительно важную роль в химии биосферы.
	www.medlinks.ru /article.php?sid=21854 (467 words)

	BBC NEWS \| Science/Nature \| Ocean bug has 'smallest genome'
		Small but perfectly formed, Pelagibacter ubique is a lean machine stripped down to the bare essentials for life.
		Pelagibacter feeds off dead organic matter that is dissolved in ocean water - lead researcher Stephen Giovannoni of Oregon State University likens it to a very thin chicken soup.
		But Pelagibacter on the other hand, accounting for a quarter of all organisms in the ocean, is a shining example of Darwin's principle, the survival of the fittest.
	news.bbc.co.uk /2/hi/science/nature/4166076.stm (426 words)

	Pelagibacter ubique (Site not responding. Last check: 2007-10-26)
		ubique, are possibly the most numerous bacteria in the world.
		The bacteria resonsible were isolated in 2002 and given a specific name, although it has not yet been validly published according to the bacteriological code.
		They are some of the smallest self-replicating cells known, with a diameter of only 0.12-0.20 µm.
	www.askfactmaster.com /Pelagibacter_ubique (134 words)

	Science & Technology at Scientific American.com: Lean Gene Machine -- [ EVOLUTION ] -- Ocean bacterium has the most ...
		Evolutionary biologists believe that the overhead required to maintain junk DNA is justified because it preserves a reservoir of potentially useful genes for a new or changing environment.
		ubique apparently has traded potential for economy in a big way, making its genome the equivalent of a fuel-stingy Volkswagen Beetle, whereas human DNA is more akin to a gas-guzzling Hummer pulling an RV trailer plus a boat.
		ubique's minimal genome is related to its thrifty lifestyle.
	www.sciam.com /article.cfm?chanID=sa006&articleID=000743E0-AA06-137B-A7A583414B7F0000&colID=5 (687 words)

	Science of Life: SAR11
		The comparative genomics is of particular interest, since it's genome can shed some additional light on the identity of the obligatory genes for survival in oligotrophic conditions, or if you like it, which of the genes were shed in the evolutionary reductive process.
		This intriguing prokaryote is being researched at Stephen Giovannoni's lab in the Department of Microbiology at Oregon State University, where they had the honour of giving it its official proposed name: (Candidatus) Pelagibacter ubique.
		I am presently writing a paper on the subject of "Adaptation of microorganisms to oligotrophic environment", so hopefully i will be able to write a comprehensive update on this topic soon.
	neyne.blogspot.com /2006/04/sar11.html (175 words)

	Biospace.com
		Despite its small size, the organism, Pelagibacter ubique, is apparently a dominant form of life in the oceans, appears to play a critical role in the cycling of carbon on Earth, and thrives where most other cells would die.
		The research, published in the current issue of the journal Science, also is important because it adds valuable insight into the role of natural selection on the genome size of organisms.
		Pelagibacter ubique belongs to a group of bacteria known as SAR 11, named for their discovery in the Sargasso Sea.
	www.biospace.com /news_story.aspx?StoryID=20924720&full=1 (1290 words)

	Rickettsiales Information
		Environmental samples have found a variety of genes that originate from this group, pointing to a number of free-living planktonic species.
		These include SAR11, later cultivated as Pelagibacter ubique, one of the most common bacteria in the world.
		As of 2005, the exact composition and classification is far from settled.
	www.bookrags.com /wiki/Rickettsiales (176 words)

	Me And My Bug
		Dr Hazel Barton takes Jolyon Jenkins underground, on a hunt for one of the world's most abundant organisms, pelagibacter ubique.
		First discovered in the Sargasso Sea in the 1970s, pelagibacter lives on practically nothing.
		Dr Hazel Barton takes Jolyon Jenkins underground in the hunt for pelagibacter ubique.
	www.radiolistings.co.uk /programmes/me_and_my_bug.html (630 words)

	The Telegraph - Calcutta : KnowHOW (Site not responding. Last check: 2007-10-26)
		Following exposure to either gory or erotic or emotional images the subjects suffered a short vision flout, failing to process what they saw immediately after.
		Ocean bug Pelagibacter ubique has the smallest genetic structure among the entirely self-sufficient and free-living organisms on earth, reports Science.
		Using the rare AXIOM Siemens high-resolution scanner, radiologists at the Stanford Hospital have seen an unprecedented layer-by-layer view inside a mummified Egyptian child on a 10-metre computer screen at Silicon Graphics in Mountain View.
	www.telegraphindia.com /1050829/asp/knowhow/story_5156766.asp (210 words)

	Gordon and Betty Moore Foundation
		This grant to the Oregon State University supports research conducted in the laboratory of Dr. Giovannoni—a recognized expert on the cultivation of marine microbes from the natural ocean environment.
		Giovannoni and his team successfully cultured SAR 11, an elusive bacterial group now called Pelagibacter ubique, which are some of the smallest (billions fit into a teaspoon) and most abundant organisms on Earth.
		Outcomes for this grant include improved marine microbe lab culture success and the description of Pelagibacter nutrient limiting factors and proteomics.
	www.moore.org /grant.aspx?id=1018 (96 words)

	Ribosomal RNA Predictions of Pelagibacter ubique strain HTCC1062, Main
		Ribosomal RNA Predictions of Pelagibacter ubique strain HTCC1062, Main
		CBS >> CBS Prediction Servers >> GenomeAtlas >> Bacteria >> Pelagibacter >> ubique >> rRNA Prediction for Pelagibacter ubique strain HTCC1062, Main
		Predicted LSU ribosomal RNA for Pelagibacter ubique strain HTCC1062, Main
	www.cbs.dtu.dk /services/GenomeAtlas/show-ribo.php?KLSO=ASC&KLSK=NGENESSORT&kingdom=Bacteria&KLphylaProteobacteria=on&segmentid=Pubique_HTCC1062_Main&type=LSU (61 words)

	12-18-02 OSU SCIENTISTS VERIFY GLOBAL ABUNDANCE OF TINY MICROBE
		This suggests that SAR11 has an active role in the oceanic carbon cycle, which affects concentrations of carbon dioxide in the Earth's atmosphere.
		Electron micrograph of cultured SAR11 (Pelagibacter ubique) cells.
		To indicate scale of these tiny organisms, the dark circle in the middle is 1/2000 of a millimeter in diameter.
	oregonstate.edu /dept/ncs/newsarch/2002/Dec02/sar11.htm (620 words)

	DNA Analysis of Pelagibacter ubique strain HTCC1062, Main
		DNA Analysis of Pelagibacter ubique strain HTCC1062, Main
		CBS >> CBS Prediction Servers >> GenomeAtlas >> Bacteria >> Pelagibacter >> ubique >> Segment Table for Pelagibacter ubique strain HTCC1062, Main
		no rank : Candidatus Pelagibacter ubique HTCC1062 (scientific name)
	www.cbs.dtu.dk /services/GenomeAtlas/show-segment.php?kingdom=Bacteria&segmentid=Pubique_HTCC1062_Main (124 words)

	Genome Streamlining in a Cosmopolitan Oceanic Bacterium -- Giovannoni et al. 309 (5738): 1242 -- Science (Site not responding. Last check: 2007-10-26)
		ubique, the first cultured member of this clade, has the smallest
		Evidence for the Ubiquity of Mixotrophic Bacteria in the Upper Ocean: Implications and Consequences.
		Bacterial taxa that limit sulfur flux from the ocean..
	www.sciencemag.org /cgi/content/abstract/309/5738/1242 (437 words)

	Chesapeake Biological Laboratory - Title (Site not responding. Last check: 2007-10-26)
		A clone library of RT-PCR products of mRNA extracted from HOTS waters was sequenced and several novel proteorhodopsins were retrieved.
		One particularly frequent gene type was closely related to the PR from Pelagibacter ubique SAR 11, for which we designed a new real-time PCR set.
		Given constant RNA and DNA extraction efficiencies that were achieved by modifying protocol, we used the ratio of copy number of proteorhodopsin cDNAs to that of proteorhodopsin genes as an indicator of the expression levels of this specific proteorhodopsin gene in samples collected in a diel cycle as well as in depth-profiles.
	www.cbl.umces.edu /Research/ecologists/shi.htm (224 words)

	HAMAP: Pelagibacter ubique complete proteome
		You may not see all the information available for this page (More information).
		Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales; SAR11 cluster; Candidatus Pelagibacter (TaxID: 335992) [NEWT/ NCBI]
		Pelagibacter ubique belongs to the SAR11 clade, which consists of small, heterotrophic marine alpha-proteobacteria that live in the oceans, where they make up about 25% of all microbial cells.
	www.expasy.ch /sprot/hamap/PELUB.html (212 words)

	Phosphoglycerate mutase from Pelagibacter ubique (5.4.2.1) : Q4FP74 (Site not responding. Last check: 2007-10-26)
		Phosphoglycerate mutase from Pelagibacter ubique (5.4.2.1) : Q4FP74
		(Phosphoglycerate mutase from Pelagibacter ubique; EC 2-Phospho-D-glycerate = 3-phospho-D-glycerate
		These data are linked to the same EC Number and organism
	www.brenda.uni-koeln.de /sequences/seq.php4?ID=24249 (238 words)

	HUCE- Events (Site not responding. Last check: 2007-10-26)
		genome sequence of the first SAR11 isolate (Pelagibacter ubique) revealed a
		provided novel insights into the metabolism of P. ubique and D. ethenogenes.
		An important goal for future studies is to correlate functionally relevant
	environment.harvard.edu /navigation/activities.htm?event_id=42023394 (246 words)

	DNA Atlas () for Pelagibacter ubique strain HTCC1062, Main
		DNA Atlas () for Pelagibacter ubique strain HTCC1062, Main
		CBS >> CBS Prediction Servers >> GenomeAtlas >> Bacteria >> Pelagibacter >> ubique >> for Pelagibacter ubique strain HTCC1062, Main
		Total hits for all Bacteria related pages has been accessed 4,378,142 times since 2004-03-23 14:47:10
	www.cbs.dtu.dk /services/GenomeAtlas/show-atlas.php?kingdom=Bacteria&segmentid=Pubique_HTCC1062_Main (89 words)

	Proteorhodopsin in the ubiquitous marine bacterium SAR11 : Nature
		Although the metabolic effect of proteorhodopsins is uncertain, they are thought to function in cells for which the primary mode of metabolism is the heterotrophic assimilation of dissolved organic carbon.
		Here we report that SAR11 strain HTCC1062 ('Pelagibacter ubique')
		The Pelagibacter proteorhodopsin functions as a light-dependent proton pump.
	www.nature.com /nature/journal/v438/n7064/abs/nature04032.html (348 words)

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