معرفي چند گونه جديد قارچ ميتوسپوريك مولد لكه‌برگي درختان پهن‌برگ در استان گيلان

Introduction of some new mitosporic fungi causing leaf spot on broad leaf trees in Guilan province (N Iran)

اين تحقيق به منظور شناسايي قارچ‌هاي مولد لكه‌برگي درختان پهن‌برگ در استان گيلان انجام شد. بين قارچ‌هاي شناسايي شده، گونه‌هاي Sphaeropsis mespili (روي Mespilus germanica)، Seiridium unicorne (روي Crataegus melanocarpa)، Septoria cornina (روي Cornus sanguinea)، Tubakia dryina (رويQuercus castaneaefolia) و گونه‌هاي نامشخصي از جنس‌هاي Cylindrogloeum از روي زبان گنجشك و Monostichella sp. از روي فندق، به عنوان آرايه‌هاي جديد براي ميكوبيوتاي ايران گزارش مي‌شوند. همچنين گونه‌هاي گياهي Acer cappadocicum و Pterocarya fraxinifolia به عنوان ميزبانان جديد براي قارچ‌هايPhloeospora aceris و Marssonina juglandis در استان گيلان گزارش مي‌شوند.

Several leaf spotting or blotching fungal diseases occur on forest trees in Guilan province (N Iran). Some of them such as maple tar spot affect health of host trees severely, but many are of minor effect. This study was carried out to identify unknown and less known fungi causing leaf spot and leaf blotch diseases on broad leaf trees in this region. So far numerous fungi were collected. Four species viz. Sphaeropsis mespili (on Mespilus germanica), Seiridium unicorne (on Crataegus melanocarpa), Septoria cornina (on Cornus sanguinea) and Tubakia dryina (on Quercus castaneaefolia) and two unidentified species belonging to Cylindrogloeum sp. (on Fraxinus excelsior) and Monostichella sp. (on Corylus avellana) are recorded for the first time from Iran. Furthermore, Phloeospora aceris (on Acer cappadocicum) and Marssonina juglandis (on Pterocarya fraxinifolia) are new members to Guilan mycobiota.