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  • 1
    Electronic Resource
    Electronic Resource
    Phylogeny and distribution of the soxB gene among thiosulfate-oxidizing bacteria (2001)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 197 (2001), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A PCR protocol for the detection of sulfur-oxidizing bacteria based on soxB genes that are essential for thiosulfate oxidation by sulfur-oxidizing bacteria of various phylogenetic groups which use the ‘Paracoccus sulfur oxidation’ pathway was developed. Five degenerate primers were used to specifically amplify fragments of soxB genes from different sulfur-oxidizing bacteria previously shown to oxidize thiosulfate. The PCR yielded a soxB fragment of approximately 1000 bp from most of the bacteria. Amino acid and nucleotide sequences of soxB from reference strains as well as from new isolates and environmental DNA from a hydrothermal vent habitat in the North Fiji Basin were compared and used to infer relationships of soxB between sulfur-oxidizing bacteria belonging to various 16S rDNA-based phylogenetic groups. Major phylogenetic lines derived from 16S rDNA were confirmed by soxB phylogeny. Thiosulfate-oxidizing green sulfur bacteria formed a coherent group by their soxB sequences. Likewise, clearly separated branches demonstrated the distant relationship of representatives of α-, β-, and γ-Proteobacteria including representative species of the former genus Thiobacillus (now Halothiobacillus–γ-Proteobacteria, Thiobacillus–β-Proteobacteria and Starkeya–α-Proteobacteria). This general picture emerged although apparent evidence for lateral transfer of the soxB gene is indicated and comparison of soxB phylogeny and 16S rDNA phylogeny points to the significance of this gene transfer in hydrothermal vent bacterial communities of the North Fiji Basin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.2001.tb10600.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Osmoregulation and compatible solutes in eubacteria (1986)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 39 (1986), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Osmotic adaption by halophilic and halotolerant bacteria is generally achieved by the accumulation or synthesis of several organic solutes. Accumulation by uptake from the medium is preferred over biosynthesis. The chemical nature of the major solute is important in determining the degree of osmotolerance of the organism. Glycine betaine accumulation confers a greater degree of osmotolerance than proline, which in turn confers more osmotolerance than glutamate accumulation. The occurrence and uptake of these solutes in a variety of eubacteria is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1986.tb01843.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Quinones of phototrophic purple bacteria (1984)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 25 (1984), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The quinone composition of the recognized species of the phototrophic purple nonsulfur bacteria, the Ectothiorhodospiraceae, and some Chromatiaceae species has been determined. Altogether more than 50 strains of 33 species have been investigated. Some of the purple nonsulfur bacteria have Q-10 as sole quinone component, while others have Q-10, Q-9, or Q-8, respectively, together with menaquinones of the same isoprenoid chain length as the major components. Rhodoquinone is present in Rhodospirillum rubrum and Rhodospirillum photometricum. The Ectothiorhodospira species have either Q-8 and MK-8, like the Chromatiaceae species, or Q-7 and MK-7 as the major components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1984.tb01381.x
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    Paper (German National Licenses)
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