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<p>In November 2023, symptoms of leaf yellowing and wilting, as well as crown and root rot, were detected on raspberry plants in a commercial field located in Culiacán, Sinaloa, Mexico. Following the isolation of colonies displaying oomycete characteristics, two isolates were purified. Through a combination of morphological examinations, pathogenicity tests, and phylogenetic analysis using ITS and LSU sequence data, the causal agent was identified as <i>Phytopythium helicoides</i> Abad, De Cock, Bala, Robideau, Lodhi &amp; Levesque. This is the first report of <i>P. helicoides</i> causing crown and root rot of raspberry worldwide.</p>

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First report of Phytopythium helicoides causing crown and root rot of raspberry (Rubus Idaeus L.) in Mexico

  • 期刊论文

  • 发表日期：

    2025年5月14日

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  • Perla Rubi Nuñez-Garcia,
  • Willie A. S. Vieira,
  • Isabel Cruz-Lachica,
  • Raymundo Saúl García-Estrada,
  • Luis Alfredo Osuna-García,
  • Alma Rosa Solano-Báez,
  • Juan Manuel Tovar-Pedraza

摘要

In November 2023, symptoms of leaf yellowing and wilting, as well as crown and root rot, were detected on raspberry plants in a commercial field located in Culiacán, Sinaloa, Mexico. Following the isolation of colonies displaying oomycete characteristics, two isolates were purified. Through a combination of morphological examinations, pathogenicity tests, and phylogenetic analysis using ITS and LSU sequence data, the causal agent was identified as Phytopythium helicoides Abad, De Cock, Bala, Robideau, Lodhi & Levesque. This is the first report of P. helicoides causing crown and root rot of raspberry worldwide.