Pleomorphomonas koreensis sp nov., a nitrogen-fixing species in the order Rhizobiales

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A Gram-negative, non-motile, non-spore-forming, rod-shaped bacterium (strain Y9(T)) was isolated from a contaminated culture of the phototrophic bacterium Rhodopseudomonas palustris, and was investigated using a polyphasic taxonomic approach. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain Y9(T) belonged to the order Rhizobiales in the Alphaproteobacteria. Comparison of phylogenetic data indicated that it was most closely related to Pleomorphomonas oryzae (98(.)5% similarity of 16S rRNA gene sequence), and the phylogenetic distance from any other species of the order Rhizobiales with a validly published name was greater than 7(.)5% (i.e. less than 92(.)5% similarity). The predominant ubiquinone was Q-10 and the major fatty acids were C-18:1, C-16:0, C-19:0 cyclo omega 8c and C-18:0. The G + C content of genomic DNA of strain Y9(T) was 65(.)1 mol%. The results of DNA-DNA hybridization in combination with chemotaxonomic and physiological data demonstrated that strain Y9(T) represents a novel species within the genus Pleomorphomonas, for which the name Pleomorphomonas koreensis sp. nov. is proposed. The type strain is Y9(T) (=KCTC 12246(T) =NBRC 100803(T))
Publisher
SOC GENERAL MICROBIOLOGY
Issue Date
2006-07
Language
English
Article Type
Article
Keywords

DEOXYRIBONUCLEIC-ACID; SEQUENCE ALIGNMENT

Citation

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, v.56, pp.1663 - 1666

ISSN
1466-5026
DOI
10.1099/ijs.0.63499-0
URI
http://hdl.handle.net/10203/92691
Appears in Collection
BS-Journal Papers(저널논문)
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