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1992 (1)
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1Author    Monier Habib, Tadros, Gerhart Drews, Dierk EversRequires cookie*
 Title    Peptidoglycan and Protein, the Major Cell Wall Constituents of the Obligate Halophilic Bacterium Rhodospirillum salexigens  
 Abstract    The obligate halophilic member o f Rhodospirillaceae, Rhodospirillum salexigens, does not con­ tain lipopolysaccharide in its thin and delicate gram-negative type cell wall. Major constituents are protein (approximately 70% of dry weight) and peptidoglycan (murein). 
  Reference    Z. Naturforsch. 37c, 210 (1982); received November 20 1981 
  Published    1982 
  Keywords    Murein, Peptidoglycan, Cell Wall, Halophilic, Phototrophic Bacterium, Protein 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0210.pdf 
 Identifier    ZNC-1982-37c-0210 
 Volume    37 
2Author    Dieter Strack, Jürgen Heilemann, Eva-Susan Klinkott, Victor WrayRequires cookie*
 Title    Cell Wall-Bound Phenolics from Norway Spruce (Picea abies) Needles  
 Abstract    Insoluble phenolics have been isolated and identified from Norway spruce (Picea abies [L.] KARST.) needles as cell wall-bound astragalin (kaempferol 3-O-ß-glucoside) and p-coumaric acid as major components, and ferulic acid as a minor one. They probably mainly occur as lignin-carbohydrate complexes. 
  Reference    Z. Naturforsch. 43c, 37—41 (1988); received August 25 1987 
  Published    1988 
  Keywords    Picea abies (L) KARST, Hydroxycinnamic Acids, Flavonols, Cell Wall, Localization 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0037.pdf 
 Identifier    ZNC-1988-43c-0037 
 Volume    43 
3Author    Stefan Stevanovic, Günther Jung, JürgP. RosenbuschRequires cookie*
 Abstract    The major outer membrane protein of Rhodobacter capsulatus 37b4 (capsule-free) was iso­ lated. Strong porin-activity was observed after reconstitution into artificial lipid bilayer mem­ branes with a single channel conductance of 3.15 nS in Im KC1. The porin migrated as a broad, single band (M T above 90,000) on sodium dodecyl sulfate polyacrylamide gel electro­ phoresis and dissociated into a single species of polypeptides (M r 36,000) on treatment with EDTA (10 m M at 30 °C, 20 min) or by heating (100 °C, 5 min). Analytical ultracentrifugation studies demonstrated the native porin to be a trimer. The monomers chromatofocused as a single, sharp peak on fast performance liquid chromatography and only one band, corre­ sponding to an isoelectric point of about 4.0, was obtained on isoelectric focusing. Gas-phase sequencing of the 23 N-terminal residues revealed G lu-V al-Lys-Leu-Ser-G ly-A sp-Ala-Arg-M et-G ly-V al-M et-T yr-A sn-Gly-A sp-Asp-X-A sn-Phe-Ser-Ser. 
  Reference    Z. Naturforsch. 45c, 576—582 (1990); received February 19 1990 
  Published    1990 
  Keywords    Rhodobacter capsulatus, Cell Wall, Outer Membrane, Porin, Oligomeric Structure 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-0576.pdf 
 Identifier    ZNC-1990-45c-0576 
 Volume    45 
4Author    Andrea Beimen, Andreas Bermpohl, Dietmar Meletzus, Rudolf Eichenlaub, Wolfgang BarzRequires cookie*
 Title    Accumulation of Phenolic Compounds in Leaves of Tomato Plants after Infection with Clavibacter michiganense subsp. michiganense Strains Differing in Virulence  
 Abstract    Infection experiments using tom ato (Lycopersicon esculentum cv. M oneymaker) plants and three strains o f Clavibacter michiganense subsp. michiganense were conducted. The bacterial isolates differed in plasmid status, virulence (measured as wilting index and as reduction o f plant biomass) and the ability to colonize the plants. Differences in the expression o f exopoly­ saccharides and the exoenzymes endocellulase, polygalacturonase, and xylanase, respectively, were not found with the bacterial isolates. As infection-induced responses o f the plants time-depending increases in soluble phenolic material, including chlorogenic acid and rutin, in the steroid alkaloid tom atine and in cell wall-bound cinnamic acids were found. In the latter frac­ tion / 7-coum aric, ferulic and especially caffeic acid were the main constituents. All plant responses were preferentially expressed in the compatible interaction. Sesquiterpenoid phyto­ alexins were not found in the infected plant tissues. The relation between bacterial pathogen­ icity and plant responses is discussed. 
  Reference    Z. Naturforsch. 47c, 898—9 (1992); received July 13 1992 
  Published    1992 
  Keywords    T om ato, Clavibacter michiganense, Phenolic Compounds, Cell Wall, Plasmid 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0898.pdf 
 Identifier    ZNC-1992-47c-0898 
 Volume    47