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<p><i>Kineococcus wuchangensis</i> DHX-1 was isolated from rice leaves at the wax-ripening stage and represents a novel species within the genus <i>Kineococcus</i>. In this study, the complete genome of strain DHX-1 was sequenced and assembled, revealing a genome size of 4,808,488 b with a GC content of 73.7%. Antimicrobial assays using the fermentation supernatant demonstrated that strain DHX-1 possesses potential antifungal activity against <i>Fusarium culmorum</i> and <i>Fusarium sporotrichioides</i>. Gas chromatography-mass spectrometry (GC–MS) analyses of volatile components in the strain DHX-1 fermentation broth supernatant, revealed that phenylethyl alcohol and 1,3-benzodioxole, 4-methoxy-6-(2-propenyl) contribute to the antifungal function. Strain DHX-1 exhibits potential as a biocontrol agent, and its discovery expands the known antifungal capabilities and biocontrol applications within the genus <i>Kineococcus</i>.</p>

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A novel endophytic Kineococcus from rice against Fusarium culmorum and Fusarium sporotrichioides and whole-genome analysis

  • 期刊论文

  • 发表日期：

    2026年3月3日

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  • Yayun Liu,
  • Lin Liu,
  • Zhuanxia Lei,
  • Ruping Zhang,
  • Lin Zhao,
  • Fenglan Li,
  • Da Zhang,
  • Qingyue Yu

摘要

Kineococcus wuchangensis DHX-1 was isolated from rice leaves at the wax-ripening stage and represents a novel species within the genus Kineococcus. In this study, the complete genome of strain DHX-1 was sequenced and assembled, revealing a genome size of 4,808,488 b with a GC content of 73.7%. Antimicrobial assays using the fermentation supernatant demonstrated that strain DHX-1 possesses potential antifungal activity against Fusarium culmorum and Fusarium sporotrichioides. Gas chromatography-mass spectrometry (GC–MS) analyses of volatile components in the strain DHX-1 fermentation broth supernatant, revealed that phenylethyl alcohol and 1,3-benzodioxole, 4-methoxy-6-(2-propenyl) contribute to the antifungal function. Strain DHX-1 exhibits potential as a biocontrol agent, and its discovery expands the known antifungal capabilities and biocontrol applications within the genus Kineococcus.