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PHENOTYPIC FEATURES AND DNA-DNA HOMOLOGY ANALYSES OF SOME PHOTOSYNTHETIC BACTERIA(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
1996 01
Page:
84-89
Research Field:
Publishing date:

Info

Title:
PHENOTYPIC FEATURES AND DNA-DNA HOMOLOGY ANALYSES OF SOME PHOTOSYNTHETIC BACTERIA
Author(s):
Yao Zhuyun Zhang Zhaoming
1. Dept Microbiol, Beijing Agricultural Univ, Beijing 100094;
2. Dept Life Sci, Shanxi Univ, Taiyuan 030006
Keywords:
photosynthetic bacteriaphenotypic featuresDNA-DNA homologyclassification
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
The phenotypic features and DNA-DNA hybridization of five isolatsd PSB strains were studied. The results of DNA-DNA homdogy analyses indicated that strain 8 and Rhodospiricllum rubrum ATCC 11 170 contained a DNA-DNA homology group,and they showed a high level of relateness and their DNA-DNA homology was 97%; the homolosy of DNA-DNA between strain 37 and Rhodopseudomonas palustris ATCC 17 001was 80%; the homology of DNA-DNA between strain 55 and Rhodobacter sphaeroides ATCC 17 023 was 71 %; strains 40 and 52 formed other two distinct homology groups. On the besis of phenotypic features,the DNA base composition and DNA-DNA hybridization were used to determine the taxonomic positions of some PSB strains.

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