Dictyobacter vulcani sp. Nov., belonging to the class ktedonobacteria, isolated from soil of the mt zao volcano

Yu Zheng, Chiung Mei Wang, Yasuteru Sakai, Keietsu Abe, Akira Yokota, Shuhei Yabe

研究成果: Article査読

2 被引用数 (Scopus)

抄録

An aerobic, Gram-stain-positive, mesophilic Ktedonobacteria strain, W12T, was isolated from soil of the Mt Zao volcano in Miyagi, Japan. Cells were filamentous, non-motile, and grew at 20–37 °C (optimally at 30 °C), at pH 5.0–7.0 (optimally at pH 6.0) and with <2 % (w/v) NaCl on 10-fold diluted Reasoner’s 2A (R2A) medium. Oval-shaped spores were formed on aerial mycelia. Strain W12T hydrolysed microcrystalline cellulose and xylan very weakly, and used d-glucose as its sole carbon source. The major menaquinone was MK-9, and the major cellular fatty acids were C16: 1 2-OH, iso-C17: 0, summed feature 9 (10-methyl C16: 0 and/ or iso-C17: 1ω9c) and anteiso-C17: 0. Cell-wall sugars were mannose and xylose, and cell-wall amino acids were d-glutamic acid, glycine, l-serine, d-alanine, l-alanine, β-alanine and l-ornithine. Polar lipids were phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol, an unidentified glycolipid and an unidentified phospholipid. Strain W12T has a genome of 7.42 Mb with 49.7 mol% G+C content. Nine copies of 16S rRNA genes with a maximum dissimilarity of 1.02 % and 13 biosynthetic gene clus-ters mainly coding for peptide products were predicted in the genome. Phylogenetic analysis based on both 16S rRNA gene and whole genome sequences indicated that strain W12T represents a novel species in the genus Dictyobacter. The most closely related Dictyobacter type strain was Dictyobacter alpinus Uno16T, with 16S rRNA gene sequence similarity and genomic average nucleotide identity of 98.37 % and 80.00 %, respectively. Herein, we propose the name Dictyobacter vulcani sp. nov. for the type strain W12T (=NBRC 113551T=BCRC 81169T) in the bacterial class Ktedonobacteria.

本文言語English
論文番号003975
ページ(範囲)1805-1813
ページ数9
ジャーナルInternational journal of systematic and evolutionary microbiology
70
3
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 微生物学
  • 生態、進化、行動および分類学

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