【摘 要】
：
An aerobic Gram-negative,oxidase-positive and catalase-positive strain YCWB251 was isolated from saltem farm sediment in Jimo-Daqiao of Qingdao,east coast of China.This strain has an absolute requirem
【机 构】
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First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, People's Republic of
【出 处】
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第八届全国微生物资源学术暨国家微生物资源平台运行服务研讨会
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An aerobic Gram-negative,oxidase-positive and catalase-positive strain YCWB251 was isolated from saltem farm sediment in Jimo-Daqiao of Qingdao,east coast of China.This strain has an absolute requirement for NaC1 and can grow in the presence of 1%-9% NaCl (w/v) (optimal growth at 3%-5% NaCl).The bacteria could grow from pH 5.0 to pH 8.0 (optimal growth at pH 8) under temperature 4 ℃-37 ℃ (optimal growth at 30 ℃).Phylogenetic analysis based on 16S rRNA gene sequences revealed that the strain YCWB25T belonged to the Roseobacter clade of family Rhodobacteraceae,and the closest species were members of the genera Pseudooceanicola (similarity lower than 95.58%).However,the novel strain formed a robust,distinct clade different from other members of the Roseobacter clade.The DNA G+C content of strain YCWB25T was 65.6 mol%.The predominant respiratory quinone of the strain YCWB25T was UQ-10.The dominant cellular fatty acids were C18∶1ω7c (62.76%),C16∶0 (13.08%),C19∶0cyclo ω8c (7.64%),which together acounted for 83.48% of the total fatty acids.The phenotypic,chemotaxonomic and phylogenetic data indicated that strain YCW-B25T represented a novel genus and species,for which a name of Salinovum rubellum gen.nov.,sp.nov was proposed,with strain YCWB25T (=MCCC 1K00272T =LMG 25394T) as the type strain.
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