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Topic: Phototroph

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Phototrophic autotroph

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	Phototroph - EvoWiki (Site not responding. Last check: 2007-10-18)
		A phototroph is an organism whose energy source is sunlight; such organisms are said to practice photosynthesis.
		The most familiar phototrophs include the oxygen-releasers: plants, algae, and cyanobacteria.
		The large majority of phototrophs use chlorophyll-carotenoid-protein complexes or "photosystems" to capture light.
	wiki.cotch.net /index.php/Phototroph (113 words)

	Optical Characteristics of the Phototroph Thiocapsa roseopersicina and Implications for Real-Time Monitoring of the ...
		Optical Characteristics of the Phototroph Thiocapsa roseopersicina and Implications for Real-Time Monitoring of the Bacteriochlorophyll Concentration -- Gitelson et al.
		Simultaneous phototrophic and chemotrophic growth in the purple sulfur bacterium Thiocapsa roseopersicina M11.
		Phototrophic and chemotrophic growth of the purple sulfur bacterium Thiocapsa roseopersicina, p.
	aem.asm.org /cgi/content/full/65/8/3392 (2965 words)

	Rhodospirillum rubrum
		It does not produce oxygen as a by-product of photosynthesis, thus it is an anoxygenic phototroph (Michigan State, Brock).
		Phototrophic purple nonsulfur bacteria are used in sewage treatment processes, for biomass production as a source of animal food or agricultural fertilizer, and production of molecular hydrogen by evolution from nitrogenase.
		They may be used also as a source of cell-free systems performing photosynthesis and ATP formation, and for the production of vitamins and other organic molecules (Balows pg.2151).
	web.umr.edu /~microbio/BIO221_2000/Rhodospirillum_rubrum.html (601 words)

	CSIndy: Modern memories (September 9, 2004)
		Looking at Brian Doan's large-format panoramic photographs of scenes in and around Colorado Springs at Phototroph, I saw works of such extraordinary, unearthly beauty that I was literally struck dumb.
		Born in Vietnam, "when the Vietnam War ended, my dad was taken away to the 're-education' camps by the new regime, and my family was forced to leave the city, wandering from place to place.
		In any case, this is another "don't miss" show from Phototroph; it'll only be up for a couple of weeks, so you'd best go to the opening Friday night.
	www.csindy.com /csindy/2004-09-09/artbreak.html (764 words)

	JGI C. aurantiacus Home
		Its intrigue became evident when its isolation and initial characterization led to the description of a phototroph that has characteristics typical of both the green sulfur bacteria and the purple bacteria.
		Sequence of its small subunit rRNA confirmed that its place on the tree of life was in the earliest branch that contained phototrophs, somewhat distant from the other phototrophs.
		The CO2 fixation mechanism, the 3-hydroxypropionate pathway, is unique among all phototrophs.
	genome.jgi-psf.org /draft_microbes/chlau/chlau.home.html (598 words)

	Rain or shine—a phototroph that delivers - Nature Biotechnology
		Their degradation is restricted to those bacteria especially equipped for cleavage of aromatic ring compounds, prominent among which is the anaerobic photosynthetic bacterium R.
		This phototroph was shown to be capable of photosynthetically driven mineralization of a variety of aromatic compounds more than 35 years ago
		First, the molybdenum-nitrogenase, the most active isozyme, can be maximally expressed in the absence of ammonia and all reductant available to the enzyme can be directed to hydrogen in the absence of gaseous nitrogen.
	www.nature.com /nbt/journal/v22/n1/full/nbt0104-40.html (1083 words)

	CSIndy: Everything and the sink (October 7, 2004)
		Mark Sink’s portrait of Andy Warhol is on display at the Phototroph Gallery.
		Mark Sink, whose photographs will be on display at Phototroph until the end of October, is a prolific, restless and interesting artist.
		Entering Phototroph, it's hard to believe that this is a one-man show, that a single photographer created such wildly different images.
	www.csindy.com /csindy/2004-10-07/artbreak.html (596 words)

	Matthew B. Sullivan's Abstracts Page
		is the numerically dominant phototroph in the tropical and sub-tropical oceans, accounting for half of the photosynthetic biomass in some areas.
		The high-light adapted ecotype has the smallest genome (1,657,990 base pairs, 1,716 genes) of any known oxygenic phototroph, whereas the genome of its low-light adapted counterpart is significantly larger at 2,410,873 base pairs (2,275 genes).
		Sufficient material of each species was collected to permit chemical extraction, and a crude extract has been prepared for subsequent testing of their effects on the germination and settlement of a range of marine organisms.
	web.mit.edu /mbsulli/www/abstracts.htm (1372 words)

	Southern Illinois University Carbondale (Site not responding. Last check: 2007-10-18)
		The main research theme in my laboratory is the isolation and characterization of new species of anoxygenic phototrophic bacteria (anoxyphototrophs) from extreme environments, in particular thermal, permanently cold, or extremely alkaline and hypersaline habitats.
		Madigan, M.T. Physiological ecology and evolution of thermophilic anoxygenic phototrophs, pp.
		Molecular evidence that the capacity for endosporulation is universal among phototrophic heliobacteria.
	www.science.siu.edu /microbiology/faculty_staff/Madigan.html (773 words)

	[No title] (Site not responding. Last check: 2007-10-18)
		__________________________________________ Among gliding bacteria, Chloroflexus is an (oxygenic or anoxygenic) phototroph.
		The filamentous gliding bacterium Herpetosiphon (is or is not) a phototroph.
		Heliobacterium chlorum is an (oxygenic or anoxygenic) phototroph that lives in soils.
	filebox.vt.edu:8080 /users/gtouchto/QUESTIONS2.doc (605 words)

	Autotroph - EvoWiki (Site not responding. Last check: 2007-10-18)
		An autotroph is an organism which is capable of obtaining all the carbon it requires from carbon dioxide, the main usable inorganic form of carbon on Earth.
		Autotrophs can get their energy either from light (phototrophs) or from chemical reactions (chemotrophs); the latter are almost always lithotrophs.
		The most familiar autotrophs are the oxygen-releasing photosynthesizers: plants, algae, and cyanobacteria, but many other prokaryotes are also autotrophic, being not only phototrophic like plants, but also chemotrophic.
	www.evowiki.org /index.php/Autotroph (116 words)

	ZoomInfo Web Summary: Susan Moldenhauer (Site not responding. Last check: 2007-10-18)
		The lack of dramatic depth or contour in its sparse hills and endless highways might yield little more than a yawn or two from a traveler just passing through...
		That is, unless you're seeing that landscape cast through the lens of photographer Susan Moldenhauer, whose show, New Landscapes, will be opening at Phototroph Gallery on Friday, Aug. 1.
		A native of Chicago with a background in drawing and printmaking, Moldenhauer has lived in Wyoming since 1991 when she took a position as curator of museum programs at the University of Wyoming in Laramie, and where she is now director and chief curator.
	www.zoominfo.com /directory/Moldenhauer_Susan_257857542.htm (444 words)

	Encyclopedia article on Bacterium [EncycloZine] (Site not responding. Last check: 2007-10-18)
		Autotrophs that obtain energy by oxidizing chemical compounds are called chemotrophs, and those that obtain their energy from light, via photosynthesis, are called phototrophs.
		These anoxygenic phototrophs fall into four phylogenetic groups: the green sulfur bacteria, green non-sulfur bacteria, purple bacteria, and heliobacteria.
		Other nutritional requirements include nitrogen, sulfur, phosphorus, vitamins and metallic elements such as sodium, potassium, calcium, magnesium, manganese, iron, zinc, cobalt, copper and nickel for normal growth.
	encyclozine.com /Bacteria (2118 words)

	Publications (Site not responding. Last check: 2007-10-18)
		Laakmann-Ditges, J.H. Klemme: Amino acid metabolism in the thermophilic phototroph, Chloroflexus aurantiacus: properties and metabolic role of two L-threonine (L-serine) dehydratases.
		J.H. Klemme: Organic nitrogen metabolism of phototrophic bacteria.
		Rehr, J.H. Klemme: Competition for nitrate between denitrifying Pseudomonas stutzeri and nitrate ammonifying enterobacteria.
	www.uni-bonn.de /~unb009/html/publications.html (262 words)

	[No title] (Site not responding. Last check: 2007-10-18)
		If the phototroph is purple it’s either a purple sulfer or nonsulfer proteobacteria.
		If the phototroph is green it’s either a green sulfer/nonsulfer or a heliobacteria.
		The presence of Bchl a and the fact that our phototroph was purple in non-sulfer media leads to the conclusion that it belongs the purple sulfer group.
	www.wou.edu /~boomers/Bio331/microlab/projects/331Fall2004/GKMB/phototemplate.doc (1341 words)

	Gazette, The (Colorado Springs): Arts district activist shows dreams really can come true
		The Depot Arts District Association, a coalition that includes Bean and other local business people, is buying the building and the property around it from the city for $3 million.
		Also Bean's graphic design office, her Roby Mill gallery, Phototroph, was meant for nights like this.
		She opened it two years ago to showcase an art form that's often overshadowed by sculpture and painting.
	www.findarticles.com /p/articles/mi_qn4191/is_20040829/ai_n10038083 (1093 words)

	phototroph - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "phototroph" is defined.
		phototroph : The American Heritage® Dictionary of the English Language [home, info]
		phototroph : Stedman's Online Medical Dictionary, 27th Edition [home, info]
	www.onelook.com /?w=phototroph (98 words)

	PHYSIOLOGICAL CHARACTERISTICS OF A NOVEL EUKARYOTIC PHOTOTROPH ISOLATED FROM THE HALOALKALINE MONO LAKE, CALIFORNIA (Site not responding. Last check: 2007-10-18)
		PHYSIOLOGICAL CHARACTERISTICS OF A NOVEL EUKARYOTIC PHOTOTROPH ISOLATED FROM THE HALOALKALINE MONO LAKE, CALIFORNIA
		A novel unicellular phototroph was isolated from meromictic Mono Lake, where it occupies two niches: the upper mixolimnion that undergoes seasonal variations while remaining oxygenic, hyperalkaline and hypersaline, and the deep anoxic monimolimnion that is additionally characterized by extreme methane, sulfide and ammonia concentrations.
		Maximal cell concentrations occur at the chemocline indicating the organism's ability to adapt not only to these conditions but also to extreme gradients, while still accounting for nearly half of the lake's annual primary production.
	aslo.org /santafe99/abstracts/SS27TU0345S.html (227 words)

	Anoxygenic Phototroph Protocol (Site not responding. Last check: 2007-10-18)
		To enrich for, document, and observe anoxygenic phototrophs (green or purple sulfur or nonsulfur bacteria).
		Review lectures and text about photosynthetic bacteria and pigments with an emphasis on anoxgenic phototrophs.
		Following enrichment or culturing, one method for inferring identity among phototrophic bacteria is to measure the absorption properties of their pigments using a spectrophotometer.
	www.wou.edu /las/natsci_math/biology/boomer/Bio331/microlab/projects/phototrophs.html (514 words)

	Chisholm Lab (Site not responding. Last check: 2007-10-18)
		It is now known to be the smallest and most abundant phototroph in the sea, and represents a significant fraction of the total chlorophyll between 40N and 40S in the world's oceans.
		Comparisons of the whole genome sequences of these two ecotypes has begun to reveal the mechanistic underpinnings of the physiological differences between the high and low-light adapted ecotypes, as well as general differences in cellular architecture.
		MED4 has a greatly reduced genome compared to MIT9313 (1.67 vs 2.4 Mbp) and encodes only about 1700 genes, (compared to 2400 genes in MIT9313) the smallest known for a phototroph.
	web.mit.edu /chisholm/www/research (1183 words)

	Phototroph: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-18)
		Phototrophs or photoautotrophs are photosynthetic (Photosynthesis is a biochemical process in which plants, algae, and some bacteria harness the energy of light...)
		[click link for more facts about this subject] and green sulfur bacteria (The green sulfur bacteria are a family (chlorobiaceae) of phototrophic bacteriumbacteria....)
		Purple non-sulfur bacteria (Purple bacteria are proteobacteria that are phototrophic, i.e....)
	www.absoluteastronomy.com /ref/phototroph (1120 words)

	gallery sink -
		A selection of work from Phototroph Gallery in Colorado Springs.
		Phototroph is a contemporary fine art photography gallery.
		Forward thinking and cutting edge it is one of the finest galleries in the region.
	www.gallerysink.com /old/previous.html (1552 words)

	Protozoa C
		A marked tendency exists for osmo- and phagotrophic taxa to develop in primarily autotrophic groups, sugesting repeated independent development of heterotrophy.
		Thus, the grouping of phototrophic flagellates together as Phytomastigophorea is artificial.
		pisciformis dies in the dark and is thus an obligate phototroph.
	www.nova.edu /ocean/messing/protozoaC.html (1114 words)

	phototroph photo autotroph - OneLook Dictionary Search (Site not responding. Last check: 2007-10-18)
		We found one dictionary with English definitions that includes the word phototroph photo autotroph:
		Tip: Click on the first link on a line below to go directly to a page where "phototroph photo autotroph" is defined.
		Phototroph, photo-autotroph : Drug Discovery and Development [home, info]
	www.onelook.com /?w=phototroph+photo+autotroph&ls=a (73 words)

	Isolation of a Periplasmic Molecular Chaperone-Like Protein of Rhodobacter sphaeroides f. sp. denitrificans That Is ...
		The protein was isolated from the periplasm of the phototroph.
		It had a molecular mass of 58 kDa and had no subunits.
		Matsuzaki, M., Abe, M., Hara, S., Iwasaki, Y., Yamamoto, I., Satoh, T. An Abundant Periplasmic Protein of the Denitrifying Phototroph Rhodobacter sphaeroides f.
	jb.asm.org /cgi/content/abstract/180/10/2718 (353 words)

	Photosynthesis Center
		Brune, D.C. (1989) Sulfur oxidation by phototrophic bacteria.
		Meyer, T.E., Tollin, G., Cusanovich, M.A., Freeman, J.C. and Blankenship, R.E. In vitro kinetics of reduction of cytochrome c-554 isolated from the reaction center of the green phototrophic bacterium, Chloroflexus aurantiacus.
		Meyer, T.E., Tollin, G., Causgrove, T.P., Cheng, P. and Blankenship, R.E. (1991) Picosecond decay kinetics and quantum yield of fluorescence of the photoactive yellow protein from the halophilic purple phototrophic bacterium, Ectothiorhodospira halophila.
	porphy.la.asu.edu /photosyn/pubs.html (15318 words)

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