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<p>Powdery mildew is an important fungal disease causing significant economic losses in fruit crops worldwide. Accurate identification of the causal agents is essential for effective disease management. In the present study, seventy-five powdery mildew samples, each from apple (<i>Malus</i> × <i>domestica</i>) and quince (<i>Cydonia oblonga</i>) collected from the Kashmir Valley of Jammu and Kashmir, India, were characterized using morphological and molecular approaches. The analyses identified two species belonging to the genus <i>Podosphaera</i> (Erysiphaceae), namely <i>Podosphaera leucotricha</i> on apple and <i>Podosphaera clandestina</i> var. <i>cydoniae</i> on quince. This study represents the first morpho-molecular characterization of powdery mildew pathogens associated with these pome fruit crops in the region based on ITS-rDNA sequence analysis. Furthermore, <i>P. clandestina</i> var. <i>cydoniae</i> is reported for the first time on quince from Jammu and Kashmir, India. The study improves current understanding of powdery mildew diversity and epidemiology in the Kashmir Valley and provides valuable baseline information for future disease monitoring and management of these economically important fruit crops.</p>

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Unravelling the phylogeny and taxonomy of powdery mildew: Insights from the Podosphaera genus infecting apple and quince in the Northwestern Himalayan region of India

  • 期刊论文

  • 发表日期：

    2026年6月26日

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  • Sana B Surma,
  • Zahoor A. Bhat,
  • Mushtaq A. Bhat,
  • Mehraj D. Shah,
  • Misbah Muzaffar,
  • Khalid Z. Masoodi,
  • Zahoor A. Dar,
  • Nisar A. Khan

摘要

Powdery mildew is an important fungal disease causing significant economic losses in fruit crops worldwide. Accurate identification of the causal agents is essential for effective disease management. In the present study, seventy-five powdery mildew samples, each from apple (Malus × domestica) and quince (Cydonia oblonga) collected from the Kashmir Valley of Jammu and Kashmir, India, were characterized using morphological and molecular approaches. The analyses identified two species belonging to the genus Podosphaera (Erysiphaceae), namely Podosphaera leucotricha on apple and Podosphaera clandestina var. cydoniae on quince. This study represents the first morpho-molecular characterization of powdery mildew pathogens associated with these pome fruit crops in the region based on ITS-rDNA sequence analysis. Furthermore, P. clandestina var. cydoniae is reported for the first time on quince from Jammu and Kashmir, India. The study improves current understanding of powdery mildew diversity and epidemiology in the Kashmir Valley and provides valuable baseline information for future disease monitoring and management of these economically important fruit crops.