Paracoccus salipaludis sp. nov., isolated from saline-alkaline soil

文献类型： 外文期刊

第一作者： Dong, Xiaoyan

作者： Dong, Xiaoyan;Xiong, Qin;Liu, Di;Wang, Dandan;Liu, Yunpeng;Wu, Gengwei;Li, Pan;Luo, Yu;Zhang, Ruifu;Dong, Xiaoyan;Zhang, Guishan;Wang, Dandan;Wu, Gengwei;Zhang, Ruifu

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关键词： Paracoccus salipaludis; Rhodobacteraceae; saline-alkaline 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： 2018 年 68 卷 12 期

页码：

收录情况： SCI

摘要： A Gram-stain-negative, short ovoid- to coccus-shaped, aerobic, non-flagellated, and nonmotile strain, designated WN007(T), was isolated from the natural saline-alkali wetland soil. Growth occurred at 10-45 degrees C (optimum 33-37 degrees C), pH 6.5-10.0 (optimum, pH 7.5-8.0) and with 0-15 % (w/v) NaCl (optimum, 2-4% NaCl). Catalase- and oxidase-positive. A comparison of the 16S rRNA gene sequence of WN007(T) showed the highest sequence similarities to Paracoccus chinensis (97.5 %) and Paracoccus niistensis (97.4%). The major respiratory quinone of strain WN007(T) was Q10 and the fatty acid profile of strain WN007(T) contained a predominant amount of summed feature 7 and small quantities of C-1(0:)0 3OH, C-1(6:)00 and C-18:00. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, glycolipid, aminolipid and lipid. The genome revealed that the G+C content was 63.9 mol% and the DNA-DNA relatedness values between strain WN007(T) and the type strains of P. chinensis CGMCC 1.7655(T) and P. niistensis KCTC 22789(T) were 46.9 +/- 2.3 and 42.4 +/- 1.7 %, respectively. This was also confirmed by the low average nucleotide identity values (<83.5 %) between strain WN007(T) and the most closely related recognized Paracoccus species. According to these results, strain WN007(T) represents a novel species of the genus Paracoccus, for which the name Paracoccus salipaludis sp. nov. is proposed. The type strain is WN007(T) (=KCTC 52851(T)=ACCC 19972(T)).

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