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  • 1
    Digitale Medien
    Digitale Medien
    Amino acid sequence of nitrite reductase: a copper protein from Achromobacter cycloclastes (1991)
    s.l. : American Chemical Society
    Biochemistry 30 (1991), S. 7180-7185 
    Details
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/bi00243a020
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  • 2
    Digitale Medien
    Digitale Medien
    Energy Yields and Growth of Heterotrophs (1970)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 24 (1970), S. 17-52 
    Details
    ISSN: 0066-4227
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.mi.24.100170.000313
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  • 3
    Digitale Medien
    Digitale Medien
    Growth Yield and Efficiency in Chemosynthetic Microorganisms (1978)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 32 (1978), S. 155-183 
    Details
    ISSN: 0066-4227
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.mi.32.100178.001103
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  • 4
    Digitale Medien
    Digitale Medien
    Grazing Behaviour of Dairy Cattle in the Tropics (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 610-611 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] At this station we have completed what is, so far as we know, the first comprehensive investigation into the behaviour of dairy cows in the tropics. Six grade 6 Friesian cows with approximately the same productivity were selected from the station herd. They were managed in the same way as, and run ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/167610a0
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  • 5
    Digitale Medien
    Digitale Medien
    Hydrolysis of Secondary Alcohol Sulphate by a Bacterial Enzyme (1967)
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 623-624 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Cell free extracts were prepared by passing through a French pressure cell washed cells collected after 24 h from a mineral salts medium containing 0*05 per cent yeast extract and 0.25 per cent Oronite C10-C20 mixture as the source of carbon. The extracts, suspended in 0.05 molar tris ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/214623a0
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  • 6
    Digitale Medien
    Digitale Medien
    Urea Excretion in Ruminants (1962)
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 1057-1058 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] VARIOUS authors1'3-7 have published conflicting reports on the level of urea excretion in the urine of ruminants. Read1, investigating the urine nitrogen excretion of a pregnant female camel (Camelus bactrianus) fed on sorghum leaves, sweet potato and salt, reported that there was only a trace of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1941057a0
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  • 7
    Digitale Medien
    Digitale Medien
    A Possible Vitamin E Deficiency occurring in a Herd of Pigs fed Standard Rations in the Tropics (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 828-829 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] As the clinical symptoms were somewhat similar to those described by workers in the temperate zone as occurring in lambs suffering from 'stiff lamb disease' and calves with 'white muscle disease' (Blaxter and Brown1), and in piglets born to sows fed on a vitamin E deficient ration (Adamstone et ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/183828a0
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  • 8
    Digitale Medien
    Digitale Medien
    Characterization of the superoxide dismutase of the denitrifying bacterium,Bacillus halodenitrificans (1990)
    Springer
    BioMetals 3 (1990), S. 14-18 
    Details
    ISSN: 1572-8773
    Schlagwort(e): Denitrifier ; Mn-superoxide dismutase ; Dimeric protein ; Cysteine-containing protein ; NO protection
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Summary Bacillus halodenitrificans produced a dimeric, manganese-containing superoxide dismutase constitutively when grown either aerobically or as a denitrifier. The molecular mass of the enzyme was determined by sedimentation equilibrium to be 41.4±3 kDa with each subunit estimated at 26 kDa. Plasma emission spectroscopy indicated the presence of 1.22 mol manganese atoms/mol holoenzyme. The electronic absorption spectrum displayed a broad band centered at approximately 474 nm (ε=560 mM−1 · cm−1) and a shoulder at 595 nm. In the ultraviolet range, the spectrum exhibited split maxima at 278 nm and 283 nm and a shoulder at 291 nm, thus resembling the spectra of superoxide dismutase fromBacillus subtilis andEscherichia coli. The amino acid composition of theB. halodenitrificans enzyme differed slightly quantitatively but little qualitatively from counterpart enzymes from other sources. Like the superoxide dismutases ofMycobacterium lepraemurium and human mitochondria, theB. halodenitrificans enzyme exhibited several cysteine residues. As expected from the capacity superoxide dismutase exhibits for protecting NO as neutrophil cytotoxicity factor, theB. halodenitrificans superoxide dismutase did not interfere with accumulation of NO produced by the organism's nitrite reductase.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01141171
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  • 9
    Digitale Medien
    Digitale Medien
    Substrate binding by crude membranes and solubilized membrane extracts fromPseudomonas natriegens (1968)
    Springer
    Antonie van Leeuwenhoek 34 (1968), S. 298-312 
    Details
    ISSN: 1572-9699
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract A component formed in the membranes ofPseudomonas natriegens during induction to utilization of mannitol orl-arabinose was found to bind the specific inducing substrate. Chloramphenicol inhibited the synthesis of the component. Binding was optimal at 25–30 C in the presence of Na+ and K+. Trypsin, KCN, and N-ethylmaleimide destroyed or suppressed the capacity to bind, but DNase and RNase had little effect. Specific binding was demonstrated by equilibrium dialysis with labeled substrate on one side of the dialysis cell and membranes or alkaline extracts of membranes on the other. Membranes from mannitol-grown cells broke the equilibrium established for C14-labeled mannitol, whereas membranes from cells grown in sea water nutrient broth did not. The substrate was unchanged after binding. Simple alkaline extraction followed by centrifugation at 105,000 ×g for 60 min gave significant purification of the binding component. Specific requirement of Na+ and K+ for substrate binding by alkaline extracts of membranes could not be demonstrated. The binding capacity of the solubilized component in alkaline extracts was destroyed by heating, but was stable to storage at 0 C for several days.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02046451
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  • 10
    Digitale Medien
    Digitale Medien
    Products of denitrification by a marine bacterium as revealed by gas chromatography (1967)
    Springer
    Marine biology 1 (1967), S. 136-139 
    Details
    ISSN: 1432-1793
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Gas chromatography was used to analyse the gases released by growing cultures of the denitrifying marine bacterium Pseudomonas perjectomarinus. When nitrate was provided as final oxidant, CO2 was the first detectable gas released. Following the peak rate of release of CO2 at approximately 16 h, N2 liheration began and peaked at 30 h. When N2O was provided as terminal oxidant, CO2 and N2 release began within a few hours and the rate of liberation of both increased for 45 to 50 h before leveling. Cell-free extracts of bacteria from denitrifying cultures of P. perfectomarinus were incubated anaerobically with nitrate, malic acid and electron transfer cofactors provided, and the gases in the atmosphere above the reaction mixtures were analysed. NO was found to be present transiently, and N2O was discerned after prolonged incubation. The applicability of gas chromatography to analyses of marine ecosystems and the need for better means of sampling the atmosphere above enzymatic reaction mixtures were disoussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00386519
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