Current Microbiology

, 63:561 | Cite as

Paracoccus oceanense sp. nov., Isolated from the West Pacific

  • Yingnan Fu
  • Qipei Li
  • Keshao Liu
  • Yongle Xu
  • Yanan Wang
  • Nianzhi Jiao
Article

Abstract

A Gram-negative, short ovoid- to coccus-shaped, aerobic, motile, non-spore-forming bacterium (designated strain JLT1679T) was isolated from West Pacific. Cells have subpolar flagella, dividing by binary fission. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belongs to branch of the evolutionary radiation occupied by the genus Paracoccus, family Rhodobacteraceae, order Rhodobacterales, class Alphaproteobacteria. The closest neighbours were Paracoccusstylophorae KTW-16T (97.1% similarity), Paracoccus caeni strain MJ17T (96.5% similarity), Paracoccus homiensis DD-R11T (96.0% similarity) and Paracoccus alcaliphilus JCM 7364T (95.8% similarity). The predominant cellular fatty acids of strain JLT1679T were summed feature 8 (18:1ω6c) (38.8%), C18:0 (27.7%), C16:0 (22.5%), and significant amounts of C18:1 ω9c (5.1%), C14:0 (3.8%) and C18:1 ω7c 11-methyl (2.1%), were present. The predominant respiratory ubiquinone of strain JLT1679T was Q-10 and the DNA G + C content of strain JLT1679T was 59.5 mol%. The polar lipid profile consisted of a mixture of phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine and sphingoglycolipid. The isolate was distinguishable from members of the genus Paracoccus on the basis of phenotypic and biochemical characteristics. It is evident from the genotypic, chemotaxonomic and phenotypic data that strain JLT1679T represents a novel species of the genus Paracoccus, for which the name Paracoccus oceanense sp. nov. is proposed. The type strain is JLT1679T (= JCM 17768T = CGMCC 1.10831T).

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Yingnan Fu
    • 1
  • Qipei Li
    • 1
  • Keshao Liu
    • 1
  • Yongle Xu
    • 1
  • Yanan Wang
    • 1
    • 2
  • Nianzhi Jiao
    • 1
  1. 1.State Key Laboratory of Marine Environmental ScienceXiamen UniversityXiamenPeople’s Republic of China
  2. 2.Key Laboratory of Microbial EngineeringThe Institute of Biology, Henan Academy of SciencesZhengzhouPeople’s Republic of China

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