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<p>A novel strain of the genus <i>Sinomonas</i>, designated G460-2<sup>&#xa0;T</sup>, was isolated from rice paddy soil. The cells of strain G460-2<sup>&#xa0;T</sup> were Gram-positive, aerobic, and non-motile rods. The optimal growth conditions for this strain were observed at 30&#xa0;°C and a pH of 7.0. Phylogenetic analysis based on 16S rRNA gene sequencing revealed that strain G460-2<sup>&#xa0;T</sup> shared the highest sequence similarity (98.41%) with <i>Sinomonas albida</i> LC13<sup>T</sup>. The genomic DNA of strain G460-2<sup>&#xa0;T</sup> had a G + C content of 68.6&#xa0;mol%. The genome size was determined to be 4.4 Mbp, and the average nucleotide identity (ANI) with the closest related reference strains was 86.39%, which is below the species delineation threshold of 95%. Digital DNA–DNA hybridization (dDDH) calculations yielded a relatedness value of 32.0% with the nearest neighbor. The predominant respiratory quinone identified in strain G460-2<sup>&#xa0;T</sup> was MK-9(H2). The major fatty acids were C15:0 anteiso (44.8%), C17:0 anteiso (28.7%), C15:0 iso (11.6%), and C16:0 iso (10.1%).</p>

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Sinomonas oryzagri sp. nov., a plant-growth- promoting bacterium isolated from rice paddy soil

  • 期刊论文

  • 发表日期：

    2025年11月17日

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  • Hangtao Wu,
  • Yusheng Lu,
  • Kaizhi Xie,
  • Chong Liu,
  • Changmin Zhou,
  • Kun Zhang,
  • Dan Wang,
  • Yaying Li,
  • Lili Sun,
  • Chaohong Shi,
  • Huanlong Peng,
  • Jiexin Zhang,
  • Wenjie Gu

摘要

A novel strain of the genus Sinomonas, designated G460-2 T, was isolated from rice paddy soil. The cells of strain G460-2 T were Gram-positive, aerobic, and non-motile rods. The optimal growth conditions for this strain were observed at 30 °C and a pH of 7.0. Phylogenetic analysis based on 16S rRNA gene sequencing revealed that strain G460-2 T shared the highest sequence similarity (98.41%) with Sinomonas albida LC13T. The genomic DNA of strain G460-2 T had a G + C content of 68.6 mol%. The genome size was determined to be 4.4 Mbp, and the average nucleotide identity (ANI) with the closest related reference strains was 86.39%, which is below the species delineation threshold of 95%. Digital DNA–DNA hybridization (dDDH) calculations yielded a relatedness value of 32.0% with the nearest neighbor. The predominant respiratory quinone identified in strain G460-2 T was MK-9(H2). The major fatty acids were C15:0 anteiso (44.8%), C17:0 anteiso (28.7%), C15:0 iso (11.6%), and C16:0 iso (10.1%).