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Litorilituus sediminis gen. nov. sp. nov., isolated from coastal sediment of an amphioxus breeding zone in Qingdao, China
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  • 作者:Yan Wang (1)
    Rui Zhao (2)
    Shiqi Ji (2)
    Zhao Li (2)
    Tong Yu (2)
    Bingyu Li (2)
    Xiaochong Shi (2)
    Xiao-Hua Zhang (2)
  • 关键词:Litorilituus sediminis gen. nov. sp. nov. ; Taxonomy ; Amphioxus breeding zone ; 16S rRNA
  • 刊名:Antonie van Leeuwenhoek
  • 出版年:2013
  • 出版时间:September 2013
  • 年:2013
  • 卷:104
  • 期:3
  • 页码:423-430
  • 全文大小:381KB
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  • 作者单位:Yan Wang (1)
    Rui Zhao (2)
    Shiqi Ji (2)
    Zhao Li (2)
    Tong Yu (2)
    Bingyu Li (2)
    Xiaochong Shi (2)
    Xiao-Hua Zhang (2)

    1. Department of Life Sciences and Technology, Xinxiang Medical University, 601 Jinsui Avenue, Xinxiang, 453003, People’s Republic of China
    2. College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People’s Republic of China
文摘
A Gram-negative, non-spore-forming, catalase- and oxidase-positive, aerobic, curved-rod shaped bacterium with polar or subpolar flagellum, designated strain JYr2T, was isolated from a sediment sample collected from an amphioxus breeding zone in the coastal region of Qingdao, China. The organism grew optimally at 37?°C, pH 8- and in the presence of 3?% (w/v) NaCl or 3-?% sea salts (w/v; Sigma). Salt was required for growth. The strain contained isoprenoid quinone 8 (Q-8, 100?%) as the predominant isoprenoid quinone and C16:0 (24.1?%) and C16:1 ω7c and/or C16:1 ω6c (35.8?%) as major fatty acids. Phosphatidylethanolamine, phosphatidylglycerol, aminophospholipid (PN) and two aminolipid (AL1, AL2) were the major constituents of the phospholipids. A phylogenetic analysis based on 16S rRNA gene sequences indicated that strain JYr2T formed a distinct evolutionary lineage within the family Colwelliaceae. It showed <95.0?% sequence similarities to all validly published species in the family Colwelliaceae, except 95.2?% to Thalassomonas viridans DSM 13754T and 95.0?% to Colwellia polaris JCM 537T. The G+C content of the DNA was 42.7?mol%. On the basis of the polyphasic taxonomic study, strain JYr2T (=?CGMCC 1.10794T?=?JCM 17549T) was considered to represent a novel genus and species in Gammaproteobacteria, for which the name Litorilituus sediminis gen. nov. sp. nov. was proposed.

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