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  • 1
    Electronic Resource
    Electronic Resource
    Nitrogen fixation by hydrogen-utilizing bacteria (1976)
    Springer
    Archives of microbiology 107 (1976), S. 235-240 
    Details
    ISSN: 1432-072X
    Keywords: Hydrogen bacteria ; Nitrogen fixation ; Acetylene reduction ; Mycobacterium flavum 301 ; Corynebacterium autotrophicum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seventeen strains of nitrogen-fixing bacteria, isolated from different habitats on hydrogen and carbon dioxide as well as on other substrates, morphologically resembled each other. All strains, including Mycobacterium flavum 301, grew autotrophically with hydrogen. The isolate strain 6 was sensitive to oxygen when dependent on N2 as nitrogen source, a consequence of the sensitivity of its nitrogenase towards oxygen. At the same time, strain 6 was sensitive to hydrogen when growing autotrophically on N2 as nitrogen source, but hydrogen did not affect acetylene reduction by these cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425333
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Oxidation of ethylene by soil bacteria (1976)
    Springer
    Antonie van Leeuwenhoek 42 (1976), S. 59-71 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The course of the biological oxidation of ethylene by soil was dependent on the type of soil used as well as on other factors. As evidenced from an increase in oxidation rate, the ethylene-consuming microorganisms in soil could grow at the expense of ethylene, even when the gas was present at concentrations of 50 ppm or less. Five strains of bacteria strongly resembling each other were isolated from different soils. These pleomorphic, gram-positive, acid-fast, obligate aerobic, ethylene-oxidizing bacteria grew also on saturated alkanes and on ordinary carbon sources. An apparent Km for ethylene of approximately 40 ppm was estimated for whole-cell suspensions of strain E20 by following the disappearance of the gas from the atmosphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399449
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Microbial metabolism of ethylene (1976)
    Springer
    Antonie van Leeuwenhoek 42 (1976), S. 73-80 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The ethylene-oxidizing strain E20 was grown on different carbon sources to obtain information on the metabolism of ethylene from simultaneous adaptation studies and from measurements of specific activities of enzymes in cell-free extracts. From the simultaneous adaptation studies it was concluded that ethylene oxide is a product of ethylene catabolism. The bacterium was also able to grow on the epoxide. From a comparison of the specific activities of isocitrate lyase and malate synthetase in different extracts it was concluded that the glyoxylate cycle was involved in the metabolism of ethylene, indicating that acetyl-CoA is a metabolite of ethylene catabolism. The sequence of reactions leading from ethylene oxide to acetyl-CoA could not be established from the simultaneous adaptation experiments and the enzyme activities in extracts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399450
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Nitrogen fixation by methane-utilizing bacteria (1976)
    Springer
    Antonie van Leeuwenhoek 42 (1976), S. 245-253 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Several pure cultures of methane-utilizing bacteria, including types I and II membrane representatives, were found to be capable of fixing nitrogen. One nitrogen-fixing isolate grew in liquid medium, but not on a solid agar medium. Apparently, the ability to fix nitrogen is common in methane-oxidizing bacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00394121
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  • 5
    Electronic Resource
    Electronic Resource
    Hydrogenase activity in nitrogen-fixing methane-oxidizing bacteria (1976)
    Springer
    Antonie van Leeuwenhoek 42 (1976), S. 255-259 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Hydrogenase activity in cells of the nitrogen-fixing methane-oxidizing bacterium strain 41 of the Methylosinus type increased markedly when growth was dependent upon the fixation of gaseous nitrogen. A direct relationship may exist between hydrogenase and nitrogenase in this bacterium. Acetylene reduction was supported by the presence of hydrogen gas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00394122
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Prosthecobacter fusiformis nov. gen. et sp., the fusiform caulobacter (1976)
    Springer
    Antonie van Leeuwenhoek 42 (1976), S. 333-342 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Four strains of heterotrophic, fusiform caulobacters have been isolated from freshwater sources. A single prostheca extends from one pole of mature cells, and cells attach to various substrata by means of a holdfast located at the distal tip of the appendage. Thus, superficially these bacteria bear a strong resemblance to bacteria in the genus Caulobacter. However, unlike Caulobacter these bacteria do not exhibit a dimorphic life cycle of motile, non-stalked daughter cells and immotile, stalked mother cells. Instead both mother and daughter cells are immotile, and at the time of cell separation the daughter cells are essentially identical mirror-image replicas of the mother cell. In addition, the prosthecae of these fusiform caulobacters do not have crossbands, they are somewhat wider than the stalks of Caulobacter and the pseudostalks of Asticcacaulis, and they terminate in a bulbous tip. The deoxyribonucleic acid (DNA) base composition ranges from 54.6–60.1, well below the 62–67 range for the genus Caulobacter. Based upon these and other differences, a new genus and species, Prosthecobacter fusiformis, is proposed for the fusiform caulobacters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00394132
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    Paper (German National Licenses)
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