Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Sphingopyxis panaciterrae sp. nov., Isolated from Soil of Ginseng Field

  • Lee, Hae-Won (Department of Biological Sciences, Korea Advanced Institute of Science and Technology) ;
  • Ten, Irina L. (St. Petersburg I. P. Pavlov State Medical University) ;
  • Jung, Hae-Min (Department of Biological Sciences, Korea Advanced Institute of Science and Technology) ;
  • Liu, Qing-Mei (Department of Biological Sciences, Korea Advanced Institute of Science and Technology) ;
  • Im, Wan-Taek (Department of Biological Sciences, Korea Advanced Institute of Science and Technology) ;
  • Lee, Sung-Taik (Department of Biological Sciences, Korea Advanced Institute of Science and Technology)
  • Published : 2008.06.30
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Abstract

A Gram-negative, strictly aerobic, motile bacterial strain, designated Gsoil $124^T$, was isolated from a soil sample taken from a ginseng field in Pocheon Province (South Korea). The isolate contained Q-10 as the predominant lipoquinone, plus $C_{18:1}\;{\omega}7c$ and summed feature 4 ($C_{16:1}\;{\omega}6c$ and/or iso-$C_{15:0}$ 2-OH) as the major fatty acids. The G+C content of the genomic DNA was 68.1 mol%, and the major polar lipids consisted of sphingoglycolipid, phosphatidylglycerol, phosphatidylcholine, and phosphatidylethanolamine. A comparative 16S rRNA gene sequence analysis showed that strain Gsoil $124^T$ was most closely related to Sphingopyxis chilensis (98.7%), Sphingopyxis alaskensis (98.2%), Sphingopyxis witflariensis (98.2%), Sphingopyxis taejonensis (98.0%), and Sphingopyxis macrogoltabida (97.6%). However, the DNA-DNA relatedness between strain Gsoil $124^T$ and its phylogenetically closest neighbors was less than 22%. Thus, on the basis of its phenotypic properties and phylogenetic distinctiveness, strain Gsoil $124^T$ should be classified as representing a novel species in the genus Sphingopyxis, for which the name Sphingopyxis panaciterrae sp. nov. is proposed. The type strain is Gsoil $124^T$ (=KCTC $12580^T$=LMG $24003^T$).

Keywords

References

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