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Identification of Rare Bacterial Pathogens by 16S rRNA Gene Sequencing and MALDI-TOF MS
Published on: July 11, 2016
Corallococcus silvisoli sp. nov., a novel myxobacterium isolated from subtropical forest soil
Xian-Jiao Zhang1,2, Guang-Da Feng1, Yang Liu1
1Key Laboratory of Agricultural Microbiomics and Precision Application - Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
Abstract:
An orange-pigmented myxobacterium, designated strain c25j21T, was isolated from subtropical forest soil collected from the Chebaling National Nature Reserve in Guangdong Province, China. Phylogenetic analysis based on the 16S rRNA gene and core genes clearly showed that the novel strain was affiliated within the genus Corallococcus and most closely related to Corallococcus aberystwythensis DSM 108846T (99.3% 16S rRNA gene sequence similarity), while C. exercitus DSM 108849T (99.2%) and C. carmarthensis DSM 108842T (99.0%) were the next most closely related type strains. The draft genome sequence of strain c25j21T was 9.23 Mb in length with a G + C content of 70.7 mol%. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain c25j21T and its closely related type strains were 88.1-89.1 and 34.1-36.3%, respectively. The major fatty acids contained iso-C15:0, iso-C17:0, iso-C17:1ω5c and iso-C17:0 2-OH. The predominant respiratory quinone was menaquinone 7. Based on phylogenetic, phenotypic and chemotaxonomic analysis, strain c25j21T represents a novel species of the genus Corallococcus, for which the name Corallococcus silvisoli sp. nov. is proposed. The type strain is c25j21T (= GDMCC 1.1387T = KCTC 62437T).
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