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'Photosynthetic Bacteria' in keywords
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1991 (1)
1981 (1)
1Author    Steiner, W. Schäfer, I. Bios, H. W. Ieschhoff, H. ScheerRequires cookie*
 Title     
 Abstract    Bacteriochlorophyll b (bchl b) has been isolated from the halophilic photosynthetic bacterium, Ectothiorhodospira halochloris. The pigment and a series o f derivatives thereof are different from Bchl b from Rhodopseudomonas viriais by HPLC analysis, but similar by uv-vis spectroscopy. The chromatographic difference originates in different esterifying alcohols in the two pigments. The one from Rp. viridis (Bchl bp) is esterified with zl2-phytaenol (phytol), that from E. halochloris (Bchl b42,io) with zf2,10-phytadienol. The structure o f the latter has been established by isolation of the alcohol from the purified pigment, followed by (i) gaschromatography-mass spectroscopy and (ii) ozonolysis and dinitrophenylhydrazon-formation o f the cleavage products, which were identified by gaschromatography-mass spectroscopy as 6-methyl-heptan-2-one, and 4-methyl-nona-1,8-dione. 
  Reference    Z. Naturforsch. 36c, 417 (1981); received February 26 1981 
  Published    1981 
  Keywords    Photosynthesis, Photosynthetic Bacteria, Halophilic Bacteria, Bacteriochlorophylls, Diterpenoid Alcohols 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0417.pdf 
 Identifier    ZNC-1981-36c-0417 
 Volume    36 
2Author    Z. NaturforschRequires cookie*
 Title    N o Correlation between Plasmid Content and Ability to Reduce N itrate in W ild-Type Strains o f Rhodobacter capsulatus  
 Abstract    Patterns o f endogenous plasmids and nitrate reduc­ tase activities were analyzed in the phototrophic bacte­ rium Rhodobacter (Rb.) capsulatus. From 10 strains in­ vestigated (including a UV-induced plasmidless nit~ mu­ tant), 4 were unable to grow photosynthetically with nitrate as N-source and lacked nitrate reductase activity (nit strains). Irrespective o f the nit phenotype, all 
  Reference    Z. Naturforsch. 46c, 703 (1991); received May 10 1991 
  Published    1991 
  Keywords    Nitrate, Plasmid, Photosynthetic Bacteria, Rhodobacter capsulatus 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0703_n.pdf 
 Identifier    ZNC-1991-46c-0703_n 
 Volume    46