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<p>A Gram negative bacterium, designated H3<sup>T</sup>, was isolated from a forest soil sample collected in Zhangjiajie National Forest Park, Hunan Province, PR China. Cells of strain H3<sup>T</sup> were yellow-pigmented, strictly aerobic, motile by means of a single polar flagellum. Growth occurred at 15–37&#xa0;°C (optimum, 25–30&#xa0;°C), pH 6.0–8.0 (optimum, 7.0) and 0–1.0% (w/v) NaCl (optimum 0%). Phylogenetic analysis based on 16S rRNA gene sequences and genome showed that strain H3<sup>T</sup> was affiliated to the genus <i>Uliginosibacterium</i> within the family <i>Rhodocyclaceae</i> of the class <i>Betaproteobacteria</i> and shared the highest sequence similarities with <i>U. sediminicola</i> M1-21<sup>&#xa0;T</sup> (96.3%). The DNA G + C content of the genomic DNA was 61.4%. The major fatty acids of strain H3<sup>T</sup> were C<sub>16:0</sub>, summed feature 3 (16:1 <i>ω</i>7<i>c</i>/16:1 <i>ω</i>6<i>c</i>) and C<sub>12:0</sub>. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified aminophospholipid, an unidentified aminolipid, three unidentified lipids, an unidentified glycolipid, and two uncharacterized phospholipids. The major respiratory quinone was ubiquinone-8. The dDDH and ANI values between strain H3<sup>T</sup> and the type strains of the genus <i>Uliginosibacterium</i> were 19.2–20.7% and 71.4–76.0%, respectively. Based on the evidences in this study, strain H3<sup>T</sup> represents a novel species of the genus <i>Uliginosibacterium</i>, for which the name <i>Uliginosibacterium silvisoli</i> sp. nov. is proposed. The type strain is H3<sup>T</sup> (= MCCC 1K09133<sup>T</sup> = KCTC 8564<sup>&#xa0;T</sup> = JSACC 33374<sup>&#xa0;T</sup>).</p>

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Uliginosibacterium silvisoli sp. nov., Isolated from Subtropical Forest Soil in Hunan Province, China

  • 期刊论文

  • 发表日期：

    2025年2月24日

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  • Yu Lv,
  • Qi Zhang,
  • Le Liu,
  • Jian He,
  • Shimei Wang,
  • Qirong Shen

摘要

A Gram negative bacterium, designated H3T, was isolated from a forest soil sample collected in Zhangjiajie National Forest Park, Hunan Province, PR China. Cells of strain H3T were yellow-pigmented, strictly aerobic, motile by means of a single polar flagellum. Growth occurred at 15–37 °C (optimum, 25–30 °C), pH 6.0–8.0 (optimum, 7.0) and 0–1.0% (w/v) NaCl (optimum 0%). Phylogenetic analysis based on 16S rRNA gene sequences and genome showed that strain H3T was affiliated to the genus Uliginosibacterium within the family Rhodocyclaceae of the class Betaproteobacteria and shared the highest sequence similarities with U. sediminicola M1-21 T (96.3%). The DNA G + C content of the genomic DNA was 61.4%. The major fatty acids of strain H3T were C16:0, summed feature 3 (16:1 ω7c/16:1 ω6c) and C12:0. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, two unidentified aminophospholipid, an unidentified aminolipid, three unidentified lipids, an unidentified glycolipid, and two uncharacterized phospholipids. The major respiratory quinone was ubiquinone-8. The dDDH and ANI values between strain H3T and the type strains of the genus Uliginosibacterium were 19.2–20.7% and 71.4–76.0%, respectively. Based on the evidences in this study, strain H3T represents a novel species of the genus Uliginosibacterium, for which the name Uliginosibacterium silvisoli sp. nov. is proposed. The type strain is H3T (= MCCC 1K09133T = KCTC 8564 T = JSACC 33374 T).