NEW SPECIES OF TRICHODERMA FOR IRAN

Some ۸۰۰ soil and rotten wood samples were collected from Gilan, Mazandaran and GolestanProvinces in the north of Iran. By using selective and general media, ۲۱۷ Trichoderma isolates were obtained belonging to sections Longibrachiatum (۶۹ isolates) and Pachybasium (۱۴۸ isolates), respectively. Pure cultures were obtained by single conidium and single chain methods. Colony features were recorded and microscopic examinations were carried out on ۵-۷ day old cultures on MA, PDA and OA media. Conidiophores, conidia and sporulation patterns were studied and recorded. Thirteen species of Trichoderma are identified among which T. ceramicum, T. crassum and Trichoderma sp. (sect. Pachybasium)and T. reesei, anamorphof H. andinensis andanamorphof H. orientalis (sect. longibrachiatum) are new records to the mycofolora of Iran.

Keywords:

Trichoderma , Pachybasium , Longibrachiatum , Iran