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<p>A Gram-stain-negative, aerobic, rod-shaped bacterium strain, designated as 4-7-4<sup>T</sup>, was isolated from the padding of a fermentation bed. Phylogenetic analyses based on 16S rRNA gene indicated that it belonged to the genus <i>Parapedobacter</i> and exhibited the closest relationship to <i>P. soli</i> KCTC 12984<sup>T</sup>, with a similarity of 96.03%. The average nucleotide identity and&#xa0;digital DNA–DNA hybridization between strain 4-7-4<sup>T</sup> and <i>P. soli</i> KCTC 12984<sup>T</sup> were 78.6% and 21.6% respectively, both of which were below the thresholds for delineating species, supporting it being a novel species of <i>Parapedobacter</i>. The major polar lipids included phosphatidylethanolamine, unidentified aminolipid and four unidentified lipids. The predominant respiratory quinone was MK-7. The major cellular fatty acids were summed feature 3 (C<sub>16:1</sub> <i>ω</i>7<i>c</i> and/or C<sub>16:1</sub> <i>ω</i>6<i>c</i>) and iso-C<sub>15:0</sub>. The genome of strain 4-7-4<sup>T</sup> was 4890729 bp, and the genomic DNA G + C content was 49.8%. In summary, strain 4-7-4<sup>T</sup> was identified as a novel species of <i>Parapedobacter</i>, for which the name <i>Parapedobacter flavus</i> sp. nov. was proposed. The type strain was 4-7-4<sup>T</sup> (=CGMCC1.10938<sup>T</sup> = KCTC 92351<sup>T</sup>).</p>

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Parapedobacter flavus sp. nov., isolated from padding of fermentation bed

  • 期刊论文

  • 发表日期：

    2025年7月14日

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  • Rui Wang,
  • Yan-Yan Zheng,
  • Zi-Xuan Liu,
  • Xuan Zhang,
  • You-Jun Liao,
  • Ya-Jing Yu,
  • Ai-Hua Li

摘要

A Gram-stain-negative, aerobic, rod-shaped bacterium strain, designated as 4-7-4T, was isolated from the padding of a fermentation bed. Phylogenetic analyses based on 16S rRNA gene indicated that it belonged to the genus Parapedobacter and exhibited the closest relationship to P. soli KCTC 12984T, with a similarity of 96.03%. The average nucleotide identity and digital DNA–DNA hybridization between strain 4-7-4T and P. soli KCTC 12984T were 78.6% and 21.6% respectively, both of which were below the thresholds for delineating species, supporting it being a novel species of Parapedobacter. The major polar lipids included phosphatidylethanolamine, unidentified aminolipid and four unidentified lipids. The predominant respiratory quinone was MK-7. The major cellular fatty acids were summed feature 3 (C16:1 ω7c and/or C16:1 ω6c) and iso-C15:0. The genome of strain 4-7-4T was 4890729 bp, and the genomic DNA G + C content was 49.8%. In summary, strain 4-7-4T was identified as a novel species of Parapedobacter, for which the name Parapedobacter flavus sp. nov. was proposed. The type strain was 4-7-4T (=CGMCC1.10938T = KCTC 92351T).