Scholarlink

<p>Yam (<i>Dioscorea</i> spp.) is used not only as food in the world but also as an important traditional medicinal herb in East Asia. However, its yield and quality are severely affected by leaf spot disease. Isolating and identifying the novel pathogens will be very helpful for controlling yam leaf spot disease. In 2023, leaf spot disease occurred in about 40% yam from germplasm resource nursery in Wen County (N34°94′68′′, E112°98′22′′), Jiaozuo City, Henan province, China. In the present study, morphological and molecular analysis methods were used to screen for novel pathogens from diseased leaves. Based on morphological characteristics, the isolates from diseased yam leaves mainly belonged into reported pathogenic fungi genera causing leaf spot. Notably, the HSD-JZ8 displayed <i>Schizophyllum</i>-like morphology features. The phylogenetic analysis of phylogenetic analyses of multi-loci (internal transcribed spacers (ITS) and nuclear ribosomal small subunit (SSU)) confirmed HSD-JZ8 as <i>Schizophyllum commune</i>. The pathogenicity of <i>S. commune</i> is confirmed by Koch’s postulates. To our knowledge, this is first report of wood-rot fungus <i>S. commune</i> as the pathogen causing leaf spot on yam worldwide, suggesting that herbs might be new hosts for <i>S. commune</i> in the world<i>.</i></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Leaf spot of yam caused by Schizophyllum commune in China

  • 期刊论文

  • 发表日期：

    2025年10月3日

查看全文
  • Ruifei Wang,
  • Xuejia Wang,
  • Liping Zhan,
  • Xueyang Ren,
  • Haibing Li,
  • Yulong He,
  • Hao Zhang,
  • Yongkang Liu,
  • Mingjun Li,
  • Guixiao La,
  • Qingxiang Yang

摘要

Yam (Dioscorea spp.) is used not only as food in the world but also as an important traditional medicinal herb in East Asia. However, its yield and quality are severely affected by leaf spot disease. Isolating and identifying the novel pathogens will be very helpful for controlling yam leaf spot disease. In 2023, leaf spot disease occurred in about 40% yam from germplasm resource nursery in Wen County (N34°94′68′′, E112°98′22′′), Jiaozuo City, Henan province, China. In the present study, morphological and molecular analysis methods were used to screen for novel pathogens from diseased leaves. Based on morphological characteristics, the isolates from diseased yam leaves mainly belonged into reported pathogenic fungi genera causing leaf spot. Notably, the HSD-JZ8 displayed Schizophyllum-like morphology features. The phylogenetic analysis of phylogenetic analyses of multi-loci (internal transcribed spacers (ITS) and nuclear ribosomal small subunit (SSU)) confirmed HSD-JZ8 as Schizophyllum commune. The pathogenicity of S. commune is confirmed by Koch’s postulates. To our knowledge, this is first report of wood-rot fungus S. commune as the pathogen causing leaf spot on yam worldwide, suggesting that herbs might be new hosts for S. commune in the world.