Introduction of some species of Parastagonospora on poaceous plants in Iran

Document Type: Research Paper

Authors

1 PhD Student, Department of Plant Protection, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

2 Prof., Department of Plant Protection, College of Agriculture, Isfahan University of Technology, Isfahan, Iran

3 Prof., Department of Plant Protection, University College of Agriculture and Natural Resources of Tehran University, Karaj, Iran

Abstract

The main purpose of this study was to identify species of Parastagonospora in association with poaceous plants in Iran. Some species of Parastagonospora like P. nodorum causes a major loss to wheat production in the world. In the present research, two species including P. nodorum,and P. avenae were identified from different poaceous species. Parastagonospora nodorum was identifiedonPhalaris arundinacea. However, P. avenae was divided into two formaespecialsi.e. P. avenae f. sp. avenaria (Paa)onPhalaris arundinacea and Avena sativa, and the identified P. avenae
f. sp. tritici5 (Pat5) onPhalaris arundinacea, Bromus hordeaceus and Aegilops tauschii. Species identification was done according to morphology of anamorph and molecular confirmation was performed on the basis of ß-xylosidase gene sequence. Pat5 and Paa are reported from Iran for the first time and also all of the identified hosts are new to the world.

Keywords


Article Title [Persian]

معرفی گونه‌هایی از جنس Parastagonospora روی گیاهان تیره گندمیان در ایران

Authors [Persian]

  • فریبا قادری 1
  • بهرام شریف نبی 2
  • محمد جوان نیکخواه 3
1 دانشجوی دکتری بیماری شناسی گیاهی، گروه گیاه‌پزشکی، دانشگاه صنعتی اصفهان، اصفهان، ایران
2 استاد گروه گیاه‌پزشکی، دانشگاه صنعتی اصفهان، اصفهان، ایران
3 استاد گروه گیاه‌پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران
Abstract [Persian]

این مطالعه، با هدف شناسایی گونه‌های Parastagonospora مرتبط با گیاهان تیره گندمیان در ایران انجام شده است. برخی گونه‌های جنس ParastagonosporaمانندP. nodorum ، خسارت قابل ‌ملاحظه‌ای به این محصول در دنیا وارد می‌کنند. در این تحقیق، دو گونه از جنس Parastagonospora شامل P. nodorumوavenae  P. روی گندمیان شناسایی شدند. گونه
P. nodorum از روی Phalaris arundinacea شناسایی شد. گونهavenae  P.  نیز به دو گروه تقسیم شد که گروه اول آن،
P. avenae f. sp. avenaria (Paa) از روی Phalaris arundinaceaوAvena sativaوگروه دوم،P. avenae f. sp. tritici5 (Pat5) از روی Phalaris arundinacea، Bromus hordeaceusوAegilops tauschiiشناسایی شد. شناسایی این گونه‌ها براساس مشخصات ریخت‌شناسی مرحله غیرجنسی و تایید مولکولی آن‌ها براساس توالی‌یابی ژن بتا زایلوسیداز انجام گرفت. گروه‌های Pat5 و Paa برای نخستین بار از ایران گزارش می‌شوند و همچنین تمامی گندمیان مورد مطالعه در این تحقیق، به عنوان میزبان‌های جدید برای گونه‌های گزارش شده معرفی می‌شوند.

Keywords [Persian]

  • بتا زایلوسیداز
  • ریخت‌شناسی
  • سوختگی خوشه
  • فیلوژنی
  • گونه جدید
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