عبداله احمدپور - Assistant Prof., Higher Education Center Shahid Bakeri Miyandoab, Urmia University, Urmia, Iran
زینب حیدریان - PhD Graduate, Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
یوبرت قوستا - Associate Prof., Department of Plant Protection, Faculty of Agriculture and Natural Resources, Urmia University, Urmia, Iran
زهرا علوی - MSc Student, Department of Plant Protection, Faculty of Agriculture and Natural Resources, Urmia University, Urmia, Iran
فاطمه علوی - MSc Student, Department of Plant Protection, Faculty of Agriculture and Natural Resources, Urmia University, Urmia, Iran

In order to study the taxonomy of Pyrenophora species in Iran, infected Poaceae specimens were obtained from West Azerbaijan province during the years ۲۰۱۸–۲۱. Twenty specimens of Pyrenophora were isolated from Poaceae. Based on the morphological characteristics and molecular data [the internal transcribed spacer (ITS-rDNA) region and GAPDH (Glyceraldehyde-۳-phosphate dehydrogenase) gene], three species of Pyrenophora viz. eight isolates of P. chaetomioides on Avena sativa, four isolates of P. catenaria on Poa sp., and eight isolates of P. semeniperda on Hordeum vulgare were identified. In the present paper, Pyrenophora chaetomioides and P. catenaria are introduced as new records for the funga of Iran. Full descriptions and illustrations as well as the economic significance and host range of new species are provided.

Taxonomy, phylogeny, Sequencing, Morphology, Poaceae