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  • 1
    Electronic Resource
    Electronic Resource
    Enzymes involved in the formation of glycerol 3-phosphate and the by-products dihydroxyacetone and glycerol in Zymomonas mobilis (1994)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 120 (1994), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract In Zymomonas mobilis a novel pathway for the formation of glycerol 3-phosphate was identified by enzymatic studies and nuclear magnetic resonance spectroscopy. This pathway branches off from the Entner-Doudoroff pathway at the intermediate glyceraldehyde 3-phosphate and proceedes via dihydroxyacetone phosphate, dihydroxyacetone, glycerol to glycerol 3-phosphate. The reaction sequence is catalyzed by the enzymes triosephosphate isomerase (0.4 U (mg protein)−1), dihydroxyacetone phosphatase (0.31 U (mg protein)−1), dihydroxyacetone reductase (0.25 U (mg protein)−1), and glycerokinase (0.08 mU (mg protein)−1), respectively. The action of a postulated aldolase catalyzing the cleavage of fructose 6-phosphate to dihydroxyacetone and glyceraldehyde 3-phosphate could be excluded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1994.tb07004.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Isoprenoid biosynthesis in bacteria: Two different pathways? (1993)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 111 (1993), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The biosynthesis of isopentenylpyrophosphate, a central intermediate of isoprenoid formation, was investigated in six different bacterial organisms. Cell-free extracts of Myxococcus fulvus, Staphylococcus carnosus, Lactobacillus plantarum and Halobacterium cutirubrum converted [14C]acetyl-CoA or [14C]hydroxymethylglutaryl-CoA to [14C]mevalonic acid. Furthermore, [14C]mevalonic acid, [14C]mevalonate-5-phosphate and [14C]mevalonate-5-pyrophosphate were metabolized to [14C]isopentenylpyrophosphate in bacteria. In contrast, no intermediates of this reaction sequence could be detected using cell-free extracts of Zymomonas mobilis and Escherichia coli. These results indicate that at least two different pathways for the biosynthesis of isopentenylpyrophosphate are present in bacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1993.tb06375.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of azasqualene on hopanoid biosynthesis and ethanol tolerance of Zymomonas mobilis (1991)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 79 (1991), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The effect of 2-aza-2,3-dihydrosqualene (azasqualene) on growth and hopanoid content of Zymomonas mobilis was investigated. Concentrations of 4–7 μM azasqualene resulted in a diminishment of growth and hopanoid content of cells with a simultaneous accumulation of squalene. The inhibitory effect of azasqualene was enhanced by ethanol. Furthermore, the importance of hopanoids for the ethanol tolerance of Z. mobilis was demonstrated by an increased growth inhibition of cells with reduced hopanoid content by ethanol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1991.tb04553.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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