گزارش جدیدی از گونه‌های Colletotrichum برای فهرست قارچ‌های ایران

In order to isolate and identify Colletotrichum species in relation to anthracnose and leaf spot symptoms, sampling of domestic and wild plants, including ornamental plants, fruitful and non-fruitful trees and shrubs, and weeds in different regions of East Azarbaijan, West Azarbaijan, Golestan, Gilan, Mazandaran and Sistan and Baluchistan were carried out during 1396-1400. A total of 450 plant samples suspected to be contaminated with Colletotrichum were collected and cultured. And Finally 414 purified Colletotrichum fungal isolates were obtained. The grouping of isolates was done based on morphological characteristics and DNA fingerprinting pattern using ISSR molecular marker and WILISSR5 primer, and a total of 87 isolates out of the total number of 414 fungal isolates were isolated as representatives for identification and analysis and genealogy analysis using ACT and TUB2 genomic regions. Sequencing results showed that representative isolates belong to seven complexes of Colletotrichum genus including Acutatum, Boninense, Gloeosporioides, Orchidearum, Spaethianum, Tibetense and Truncatum. Among these complexes, the largest number of representative isolates belonged to the Gloeosporioides complex, among which two species, C. cordylinicola and C. peakense, were identified and reported for the first time for the list of Iranian fungi. Also, this study is the first report of the isolation of C. cordylinicola from Cordyline sp. and C. peakense from Persea americana, Citrus limon and Rutaceae sp. in the world.