文献类型： 外文期刊
作者： Yao, Li 1 ; Lai, Yuhan 1 ; Xue, Fei 1 ; Sun, Lina 2 ; Wang, Jialian 1 ;
作者机构： 1.Yancheng Teachers Univ, Coll Marine & Bioengn, Yancheng 210095, Jiangsu, Peoples R China
2.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
关键词： Paracandidimonas caeni; taxonomy
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 11 期
页码：
收录情况： SCI
摘要： A beige-pigmented, Gram-stain-negative, aerobic, non-motile, rod-shaped bacterium, named 24(T), was isolated from sludge of a pesticide manufacturing factory in Nantong, Jiangsu Province, China. 16S rRNA gene sequence analysis revealed that strain 24(T) shared highest similarity with Parapusillimonas granuli Ch07(T) (98.20 %), followed by Candidimonas nitroreducens SC-089(T) (98.07 %) and Paracandidimonas soli IMT-305(T) (98.03 %). Phylogenetic trees showed that strain 24(T) formed a distinct clade with Paracandidimonas soli IMT-305(T). The results of DNA-DNA hybridization tests showed that reassociation values were less than 45 % with respect to these closely related type strains. Strain 24(T) contained Q-8 and putrescine as the major respiratory quinone and polyamine, respectively. The main cellular fatty acids were summed feature 3 (C-16 : 1 omega 7c/C-16 : 1 omega 6c), summed feature 2 (iso-C-16 : 1 I/C-14 0 3-OH/C-12 : 0 aldehyde), summed feature 8 (C-18 : 1 omega 7c/C-18 : 1 omega 6c) and C-12 : 0. The polar lipid profile included phosphatidylmethylethanolamin, phosphatidylethanolamine, phosphatidylglycerol, one unidentified phospholipid and one unidentified aminolipid. The G+C content was 56.83 mol%. Combined data from phenotypic, phylogenetic and DNA-DNA relatedness studies demonstrated that strain 24(T) represents a novel species of the genus Paracandidimonas , for which the name Paracandidimonas caeni sp. nov. is proposed. The type strain is 24(T) (=CCTCC AB 2018057(T)=KACC 19692(T)).
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