Parastagonospora poae و P. minima، گونه‌های جدیدی برای قارچ‌های ایران

نوع مقاله : سیستماتیک و تنوع زیستی قارچ‌ها

نویسندگان

1 دانشیار گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج، ایران

2 استادیار گروه تنوع‌زیستی، پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته، کرمان، ایران

10.22092/bot.j.iran.2025.367941.1409

چکیده

گونه‌های Parastagonospora از بیمارگرهای رایج گیاهی هستند که گندم، جو و دامنه وسیعی از علف‌های هرز گندمیان را آلوده می‌کنند. طی نمونه‌برداری‌هایی که با هدف شناسایی گونه‌های قارچی مرتبط با لکه‌برگی‌ها روی علف‌های هرز در مزارع گندم از استان‌های کهگیلویه و بویراحمد و فارس انجام شد، جدایه‌هایی از گونه‌هایParastagonospora  از برگ‌ها، خوشه‌ها و  ساقه‌های Aegilops tauschii  جداسازی شدند. براساس تلفیق داده‌های ریخت‌شناختی و مولکولی نواحی ITS و LSU، دو گونه P. poae و P. minima شناسایی شدند. براساس اطلاعات موجود، این نخستین گزارش از گونه‌های مذکور برای قارچ‌های ایران و نخستین گزارش از این گونه‌ها روی میزبان A. tauschii در دنیا است. هر دو گونه P. poae و P. minima لکه‌های نکروز روی گندم (رقم چمران) در شرایط گلخانه ایجاد نمودند. شناسایی این گونه‌ها از علف‌های هرز در مزارع گندم، بیانگر احتمال وجود منبعی برای بیمارگرهای نوظهور از این مناطق در آینده است.

کلیدواژه‌ها

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