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  • 1975-1979  (3)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    A new purple bacterium that oxidizes sulfide to extracellular sulfur and sulfate (1975)
    Springer
    Plant and soil 43 (1975), S. 17-27 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The properties of a newly isolated fresh-water purple bacterium (strain 51) are discussed. This bacterium was found to oxidize sulfide to extracellular sulfur and sulfate during phototrophic growth with sulfide as the electron donor. However, strain 51 differs in many aspects from the Ectothiorhodospira species which thus far were the only purple bacteria known to exhibit this characteristic. The new isolate appeared to show more resemblance toRhodopseudomonas capsulata although some differences with this species exist as well. During growth in batch cultures with hydrogen sulfide as the electron donor, strain 51 did not produce sulfate in significant amounts before sulfide had been completely oxidized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01928473
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A new purple bacterium that oxidizes sulfide to extracellular sulfur and sulfate (1975)
    Springer
    Plant and soil 43 (1975), S. 17-27 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The properties of a newly isolated fresh-water purple bacterium (strain 51) are discussed. This bacterium was found to oxidize sulfide to extracellular sulfur and sulfate during phototrophic growth with sulfide as the electron donor. However, strain 51 differs in many aspects from the Ectothiorhodospira species which thus far were the only purple bacteria known to exhibit this characteristic. The new isolate appeared to show more resemblance toRhodopseudomonas capsulata although some differences with this species exist as well. During growth in batch cultures with hydrogen sulfide as the electron donor, strain 51 did not produce sulfate in significant amounts before sulfide had been completely oxidized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01928473
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effect of environmental conditions on the production of two extracellular proteolytic enzymes byVibrio SA1 (1978)
    Springer
    Antonie van Leeuwenhoek 44 (1978), S. 129-140 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The production of two extracellular proteases, an endopeptidase and an aminopeptidase, by the marine bacteriumVibrio SA1 was studied in batch cultures. The production of the proteases was induced during growth of the organism in peptone media and by several amino acids during growth in minimal media. It was repressed by easily metabolisable carbon compounds such as glucose, lactate and succinate during growth in peptone media. During growth in a lactate basal medium, phenylalanine was one of the best inducers and this amino acid was therefore used in further experiments. That lactate dit not repress the synthesis of the proteases during growth in the lactate basal medium supplemented with 2mm phenylalanine as an inducer, appeared to be a consequence of the low iron content of this medium. Growth curves ofVibrio SA1 on such media showed a period of linear growth during which protease production was observed. When the iron concentration was made sufficiently high to prevent linear growth, the synthesis of the proteases remained repressed. Apparently by imposing an iron limitation on the organism, catabolite repression by lactate was relieved. Similarly, when growth was limited by very low values of the dissolved oxygen tension in the medium, a high rate of protease synthesis was found which was immediately repressed when the oxygen limitation was released. The results indicate that the growth rate and/or a factor associated with the energy metabolism play a role in the regulation of the synthesis of the enzymes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00643216
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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