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Published online ahead of print on 19 June 2009 as doi:ijs.0.006619-0
International Journal of Systematic and Evolutionary Microbiology 2009;59:1672.

Int J Syst Evol Microbiol (2009); DOI 10.1099/ijs.0.006619-0
© 2009 International Union of Microbiological Societies
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Planobacterium taklimakanense gen. nov., sp. nov., a novel member of the family Flavobacteriaceae exhibiting motility, isolated from desert soil

Fang Peng, Ming Liu, Lei Zhang, Jun Dai, Xueshong Luo, Hongli An and Chengxiang Fang1

CCTCC,College of Life Sciences, Wuhan University

1 E-mail: cxfang{at}whu.edu.cn

A Gram-staining-negative and rod-shaped bacterial strain, X-65T, isolated from desert soil of Xinjiang, China, was subjected to phenotypic and phylogenetic studies. On the basis of 16S rRNA gene sequence analyses, the isolate showed closest relationship to members of the genera Chryseobacterium (92.4-95.4 %), Cloacibacterium (94.0 %), Sejongia (93.9 %) and Elizabethkingia (93.8 %) and to Riemerella columbina (93.3 %). The strain differed from all reference strains by its motility, the presence of flagella-like appendages and high amounts of the straight-chain fatty acids 16:0 and 18:0. Growth was observed at 18-37 °C (optimum, 30 °C), at pH 6-12 (optimum, pH 7-8) and in the presence of 0-3% NaCl (optimum, 0%). Flexirubin pigments were absent. The major isoprenoid quinone was MK-6. The DNA G+C content was 41.5 mol%. The polyphasic data presented in this study indicated that the isolate should be classified in a novel genus within the family Flavobacteriaceae. The name Planobacterium gen. nov. is therefore proposed for the isolate, with the type species Planobacterium taklimakanense sp. nov. (type strain X-65T =CCTCC AB 208154T =NRRL B-51322T ).






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