SOME BIOLOGICAL PARAMETERS IN SORDARIA FIMICOLA

Abstract

Biological parameters associated with identification, isolation, proliferation, resistance and discharge of asci and ascosporous were investigated on Sordaria fimicola. As unusual habitats, the fungus was isolated from surfaces of necrotized leaf spots of Hordeum vulgare, H. spontaneum and Datura inoxia at various rates in the vegetation period of 2009 in the Şanlıurfa district, Turkey. Treatments were conducted at different temperatures and nutrition media. Together with mycelium development, the most perithecial production was observed on Potato Dextrose Agar-1 at 25ºC in shortest time. At the same temperature, the slowest mycelium growth and perithecial production was observed on Potato Dextrose Agar-2. In absence of glucose in Corn Meal Agar, perithecial production and mycelium development was also fast. Mycelia tufts of fungus were resistant to different degrees or doses of ethyl alcohol. On the mycelium appendages stored in the ethyl alcohol, the perithecium of the fungus produced. Globe, turbinate, obpyriform and clavate were respective steps in the formation of perithecium. Together with asci, ascosporous were actively thrown from bursting perithecial opening in the matured perithecium. It is considered that this fungus species may occupy the necrotized areas on living plant leaves as an alternative habitat.