Four new Fusarium taxa isolated from gramineous plants in Iran

In the course of a survey during growing seasons of ۲۰۰۲-۰۴, various fields and pastures in ۲۳ Iranian provinces were sampled. Some ۱۲۰۰ isolates of Fusarium from root, crown, stem and spike of various plants belonging to the family Poaceae were recovered using Nash-Snyder selective medium and purified on potato dextrose agar (PDA). Based on morphological characters, ۳۵ Fusarium species were identified using PDA, SNA, KCl+WA and CLA media. Sporulation was encouraged using near UV light and darkness of ۱۲h at ۲۲-۲۵˚ C.