Reclassification of Aquaspirillum itersonii and Aquaspirillum peregrinum as Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov.

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Title
Reclassification of Aquaspirillum itersonii and Aquaspirillum peregrinum as Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov.
Author(s)
Jung-Hoon Yoon; So Jung Kang; Sooyeon Park; Soo Young Lee; Tae Kwang Oh
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 57, no. 12, pp. 2830-2835
Publication Year
2007
Abstract
Phylogenetic analysis based on 16S rRNA gene sequences showed that Aquaspirillum itersonii and Aquaspirillum peregrinum form distinct phylogenetic lineages within the Alphaproteobacteria, whereas Aquaspirillum serpens, the type species of the genus Aquaspirillum, belongs to the Betaproteobacteria. A. itersonii and A. peregrinum exhibited 16S rRNA gene sequence similarity values of 82.0-82.4% to the type strain of A. serpens and of 91.8-92.0% to each other. A. itersonii and A. peregrinum were clearly distinguishable from A. serpens by differences in ubiquinone types and fatty acid profiles. A. itersonii subsp. itersonii LMG 4337T and A. itersonii subsp. nipponicum LMG 7370T contained Q-10 as the predominant ubiquinone, and A. peregrinum subsp. peregrinum LMG 4340T and A. peregrinum subsp. integrum LMG 5407T contained Q-9 as the predominant ubiquinone, whereas A. serpens LMG 3734T had Q-8 as the predominant ubiquinone. A. itersonii and A. peregrinum were also distinguishable from A. serpens by some differences in the fatty acid composition, including major fatty acids and hydroxy fatty acids. On the basis of these data, A. itersonii and A. peregrinum should be reclassified into two novel genera and species, for which the names Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov., respectively, are proposed.
ISSN
0020-7713
Publisher
Microbiology Soc
DOI
http://dx.doi.org/10.1099/ijs.0.65340-0
Type
Article
Appears in Collections:
Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
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