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Int J Syst Evol Microbiol 59 (2009), 719-723; DOI  10.1099/ijs.0.000257-0
© 2009 International Union of Microbiological Societies

Sphingomonas sanxanigenens sp. nov., isolated from soil

Hai-Dong Huang1,2, Wei Wang1, Ting Ma1, Guo-Qiang Li1, Feng-Lai Liang1 and Ru-Lin Liu1

1 Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, PR China
2 Tianjin Agricultural University, Tianjin 300384, PR China

Correspondence
Ting Ma
tingma{at}nankai.edu.cn

Strain NX02T, a Gram-negative, non-spore-forming, rod-shaped bacterium, was isolated from soil, and its taxonomic position was investigated using a polyphasic approach. Chemotaxonomic analysis revealed that strain NX02T possessed Q-10 as the predominant ubiquinone, sym-homospermidine as the major polyamine and C18 : 1{omega}7c, C16 : 0 and C14 : 0 2-OH as the major fatty acids. The main polar lipids were sphingoglycolipid, phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidyldimethylethanolamine and an unidentified glycolipid. The DNA G+C content was 66.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain NX02T belongs to the {alpha}-4 subgroup of the Proteobacteria, exhibiting the highest sequence similarity with respect to Sphingomonas azotifigens NBRC 15497T (95.9 %), Sphingomonas pituitosa DSM 13101T (95.8 %) and Sphingomonas dokdonensis KCTC 12541T (95.8 %). On the basis of these results, strain NX02T represents a novel species of the genus Sphingomonas sensu stricto, for which the name Sphingomonas sanxanigenens sp. nov. is proposed. The type strain is NX02T (=DSM 19645T =CGMCC 1.6417T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain NX02T is DQ789172.

Results of two-dimensional TLC of the polar lipids of strain NX02T are available as a supplementary figure with the online version of this paper.




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J.-H. Yoon, S. Park, S.-J. Kang, W. Kim, and T.-K. Oh
Sphingomonas hankookensis sp. nov., isolated from wastewater
Int J Syst Evol Microbiol, November 1, 2009; 59(11): 2788 - 2793.
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