سال انتشار: ۱۳۸۴

محل انتشار: چهارمین همایش ملی بیوتکنولوژی ایران

تعداد صفحات: ۴

نویسنده(ها):

M Kalantar Zadeh – Department of Plant Pathology, College of Agricultural Sciences, Bahonar University of Kerman.
G.H Shahidi Bonjar – Department of Plant Pathology, College of Agricultural Sciences, Bahonar University of Kerman.
P Rashid Farrokhi – Department of Agronomy and Plant Breeding, College of Agricultural Sciences, Bahonar University of Kerman.
A Ghasemi – Plant Pests and Diseases Research Institute, Tehran

چکیده:

Antagonistic activity of 174 soil Actinomycete isolates were assayed against (Streptomyces scabies and S. acidiscabies), the two major phytopathogens which induce potato scab in potato growing areas of Iran. From tested isolates, (S. olivaceus, srtain 115) and (S. plicatus, strain 101) showed high anti-scab activity revealed by bioassays in agar disk and well diffusion methods. For further biological characterizations, the active strains were grown in submerged cultures to determine growth curve and prepare crude extracts. Preliminary greenhouse studies indicated that amending soil with the (S. olivaceus, srtain 115) and (S. plicatus strain 101) reduce crop losses due to the pathogens. Antibacterial activities of both antagonists were of bactericidal type on both pathogens with complete inhibitory effects.