PMID: 6971081Jan 1, 1981Paper

Dna-Dna hybridization of Rhodopseudomonas capsulata, Rhodopseudomonas sphaeroides and Rhodopseudomonas sulfidophila strains

Archives of Microbiology
J A de BontT A Hansen

Abstract

The genetic relatedness of 21 Rhodopseudomonas strains has been studied by means of DNA-DNA hybridization. All strains included in the study belonged to the subgroup of the genus Rhodopseudomonas which is characterized by a short-rod to coccus morphology, a vesicular intracytoplasmic membrane system and carotenoids of the spheroidene group. Mol percentages guanine + cytosine ranged from 64 to 73, most strains having values between 68 and 72. With few exceptions, the hybridization data obtained were in agreement with the subdivision in three (or possibly four) species on the basis of classical taxonomy. Strain SCJ, formerly considered to be a somewhat atypical R. capsulata strain, is most probably R. sphaeroides strain and two out of seven strains that were received as R. sulfidophila did not fit in this species on the basis of the hybridization data. The results also showed that two undesignated strains that were previously thought to be related to R. capsulata (Hansen et al. 1975) cannot be assigned to this species and may be representatives of another species. The seven strains that required approximately 2.5% NaCl in the medium and that had been designated R. sulfidophila were found to synthesize far higher levels of bacteri...Continue Reading

References

Jan 1, 1979·Annual Review of Microbiology·J WeckesserH Mayer
Jan 1, 1977·Annual Review of Microbiology·N Pfennig
Nov 7, 1975·Archives of Microbiology·P F WeaverH Gest
Jan 1, 1972·Archiv für Mikrobiologie·T A Hansen, H van Gemerden
Jan 1, 1973·Archiv für Mikrobiologie·T A Hansen, H Veldkamp
May 25, 1971·Biochemistry·S L Commerford
Feb 1, 1957·Journal of Cellular Physiology·G COHEN-BAZIRER Y STANIER

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Citations

Jan 1, 1980·Antonie van Leeuwenhoek·A D Adamse
Jun 1, 1996·Journal of Molecular Evolution·R P Ambler
Jan 1, 1986·Antonie van Leeuwenhoek·I Scholten-KoerselmanA J Zehnder
Jan 1, 1994·Antonie van Leeuwenhoek·K J HellingwerfB J van Rotterdam
Jul 29, 2004·International Journal of Systematic and Evolutionary Microbiology·Johannes F Imhoff, Pierre Caumette
Dec 1, 1986·Applied and Environmental Microbiology·G SchraaA J Zehnder
Jul 1, 1983·Annales de microbiologie·N Pfennig, H G Trüper

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