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新型巴氏芽孢杆菌,从中国秦始皇兵马俑坑土壤中分离得到。

Bacillus bingmayongensis sp. nov., isolated from the pit soil of Emperor Qin's Terra-cotta warriors in China.

机构信息

Agricultural Bio-Resource Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, Fujian, People's Republic of China,

出版信息

Antonie Van Leeuwenhoek. 2014 Mar;105(3):501-10. doi: 10.1007/s10482-013-0102-3. Epub 2013 Dec 27.

Abstract

A Bacillus-like isolate, strain FJAT-13831(T), isolated from the No. 1 pit soil of Emperor Qin's Terra-cotta Warriors in Xi'an City, China, was studied to determine its taxonomic status. Dominant fatty acids of this organism included iso-C15:0, iso-C17:0, C16:0, iso-C13:0, anteiso-C15:0, and iso-C17:1ω5c. Comparative 16S rRNA gene sequence analysis confirmed the affiliation of this isolate to the genus Bacillus and indicated that it was closely related to Bacillus pseudomycoides DSM 12442(T) (99.72 % similarity). A phylogenetic analysis of the gyrB gene sequence similarities exhibited independent clustering of the isolate FJAT-13831(T) and showed 93.8 % (<95 %) sequence similarity with its closest phylogenetic neighbour B. pseudomycoides DSM 12442(T). Separate standing of the strain FJAT-13831(T) was supported by a whole genome-based phylogenetic analysis with an average nucleotide identity value of 91.47 (<95 %) between isolate FJAT-13831(T) and B. pseudomycoides DSM 12442(T) and was consistent with the results of DNA-DNA hybridization (69.1 % relatedness). These findings support the conclusion that the isolate FJAT-13831(T) represents a novel species, for which the name Bacillus bingmayongensis sp. nov. is proposed. The type strain is FJAT-13831(T) (= CGMCC 1.12043(T) = DSM 25427(T)).

摘要

一株从中国西安秦始皇兵马俑一号坑土壤中分离得到的芽孢杆菌样菌株 FJAT-13831(T),被用于确定其分类地位。该菌的主要脂肪酸包括 iso-C15:0、iso-C17:0、C16:0、iso-C13:0、anteiso-C15:0 和 iso-C17:1ω5c。16S rRNA 基因序列分析结果表明,该菌株与芽孢杆菌属密切相关,与 Bacillus pseudomycoides DSM 12442(T)(相似度为 99.72%)最为相似。gyrB 基因序列的系统发育分析表明,FJAT-13831(T)菌株与 Bacillus pseudomycoides DSM 12442(T)形成独立的聚类,与亲缘关系最近的 Bacillus pseudomycoides DSM 12442(T)的序列相似度为 93.8%(<95%)。全基因组系统发育分析也支持该菌株的独立分类地位,FJAT-13831(T)菌株与 Bacillus pseudomycoides DSM 12442(T)的平均核苷酸同一性值为 91.47%(<95%),与 DNA-DNA 杂交结果(69.1%的相关性)一致。综上所述,FJAT-13831(T)菌株代表了一个新的物种,建议将其命名为 Bacillus bingmayongensis sp. nov.。其模式菌株为 FJAT-13831(T)(=CGMCC 1.12043(T)=DSM 25427(T))。

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