NEW SPECIES OF TRICHODERMA FOR IRAN

Abstract

Some 800 soil and rotten wood samples were collected from Gilan, Mazandaran and GolestanProvinces in the north of Iran. By using selective and general media, 217 <em>Trichoderma</em> isolates were obtained belonging to sections <em>Longibrachiatum</em> (69 isolates) and <em>Pachybasium</em> (148 isolates), respectively. Pure cultures were obtained by single conidium and single chain methods. Colony features were recorded and microscopic examinations were carried out on 5-7 day old cultures on MA, PDA and OA media. Conidiophores, conidia and sporulation patterns were studied and recorded. Thirteen species of <em>Trichoderma</em> are identified among which <em>T. ceramicum</em>,<em> T. crassum </em>and<em> Trichoderma</em> sp. (sect. <em>Pachybasium</em>)and<em> T. reesei</em>, anamorphof<em> H. andinensis </em>andanamorphof<em> H. orientalis</em> (sect.<em> longibrachiatum</em>) are new records to the mycofolora of Iran.