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a photosynthetic bacterium that reduces CO2 in the presence of sulfur compounds; there are two types: the purple sulfur bacteria and the purple nonsulfur bacteria.Medical dictionary. 2011.
purple bacterium — noun : any of various free living bacteria that contain bacteriochlorophyll marked by purplish or sometimes reddish or brownish pigments compare purple sulfur bacterium … Useful english dictionary
purple nonsulfur bacterium — a photosynthetic, heterotrophic, microaerophilic bacterium of the family Rhodospirillaceae. Purple nonsulfur bacteria reduce CO2 and oxidize sulfide or thiosulfate but not elemental sulfur in the presence of the pigment bacteriochlorophyll a … Medical dictionary
purple sulfur bacterium — a photosynthetic, autotrophic, anaerobic bacterium of the family Chromatiaceae. Purple sulfur bacteria reduce carbon dioxide and oxidize sulfides and elemental sulfur in the presence of the pigment bacteriochlorophyll a or b … Medical dictionary
purple sulfur bacterium — noun : any of numerous sulfur bacteria (as of the family Thiorhodaceae) appearing reddish or purplish due to the combination of bacteriochlorophyll and carotenoid pigments in the cell … Useful english dictionary
Rhodobium (bacterium) — Taxobox color = lightgrey name = Rhodobium regnum = Bacteria phylum = Proteobacteria classis = Alpha Proteobacteria ordo = Rhizobiales familia = Rhodobiaceae genus = Rhodobium subdivision ranks = Species subdivision = R. orientis R. marina… … Wikipedia
sulfur bacterium — ▪ biology plural Sulfur Bacteria, any of a diverse group of microorganisms capable of metabolizing sulfur and its compounds and important in the sulfur cycle (q.v.) in nature. Some of the common sulfur substances that are used by these… … Universalium
Photosynthetic reaction center protein family — Pfam box Symbol = Photo RC Name = Photosynthetic reaction centre protein width = caption = Pfam= PF00124 InterPro= IPR000484 SMART= PROSITE = PDOC00217 SCOP = 1prc TCDB = 3.E.2 OPM family= 2 OPM protein= 1dxr PDB=PDB3|1cltM:37 306 PDB3|4prcM:37… … Wikipedia
Bradyrhizobiaceae — Taxobox color = lightgrey name = Bradyrhizobiaceae regnum = Bacteria phylum = Proteobacteria classis = Alpha Proteobacteria ordo = Rhizobiales familia = Bradyrhizobiaceae subdivision ranks = Genera subdivision = Afipia Agromonas Blastobacter… … Wikipedia
bacteria — bacterial, adj. bacterially, adv. /bak tear ee euh/, n.pl., sing. bacterium / tear ee euhm/. ubiquitous one celled organisms, spherical, spiral, or rod shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom … Universalium
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
