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Chitinophaga lutea sp. nov., isolated from arsenic-contaminated soil

文献类型： 外文期刊

作者： Zong, Yuanyuan 1 ; Wu, Minghan 1 ; Liu, Xiaoxiao 2 ; Jin, Yongmei 2 ; Wang, Gejiao 1 ; Li, Mingshun 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Life Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Hubei, Peoples R China

2.Jilin Acad Agr Sci, Changchun 130033, Jilin, Peoples R China

关键词： Chitinophaga; arsenic-contaminated soil

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2019 年 69 卷 7 期

页码：

收录情况： SCI

摘要： A yellow-coloured bacterial strain, designated ZY74(T), was isolated from arsenic contaminated soil (34 mg kg(-1)) sample collected in Longkou, Hubei Province, PR China. Cells were Gram-stain-negative, aerobic, non-motile and rod-shaped. Strain ZY74(T) produced round, yellow-pigmented, smooth and opaque colonies. Based on the results of 16S rRNA gene sequence analysis, strain ZY74(T) was found to be affiliated with members of the genus Chitinophaga. Its closest members were Chitinophagabarathri YLT18 (T) (97.72 %) and Chitinophaganiabensis JS13-10(T) (97.17%). The genome size of strain ZY74(T) was 6.61 Mb, containing 5351 predicted protein-coding genes, with a DNA G+C content of 55.0 mol%. The average nucleotide identity values of strain ZY74(T) with C. barathri YLT18(T) and C. niabensis DSM 24787(T) were 76.12 and 73.32 %, respectively. The digital DNA-DNA hybridization values of strain ZY74(T) with C. barathri YLT18(T) and C. niabensis JS13-10(T) were 20.60 and 19.40 %, respectively. The major respiratory quinone was menaquinone 7 and the predominant fatty acids (>5 %) were iso-C-1(5:0), C(16)(:1)w5c and iso-C(17:0)3-OH. On the basis of phylogenetic, genotypic, phenotypic and chemotaxonomic characterization, strain ZY74(T) represents a novel species in the genus Chitinophaga, for which the name Chitinophaga lutea sp. nov. is proposed. The type strain is ZY74(T) (=CCTCC AB2018369(T)=KCTC 72039(T)).

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