Identity and pathogenicity of Fusarium Spp. isolated from stored potatoes in Iran
Khosrow Chehri,Hafizi Rosli, Baharuddin Salleh, Latiffah Zakaria
Abstracts of 7th International Postharvest Symposium 2012 (IPS2012). 25-29 June, 2012. Putra World Trade Centre (PWTC), Kuala Lumpur, Malaysia. 238 pages.
2012
บทคัดย่อ
Fusarium spp. are common pathogens of potato, causing wilts on plants and dry rot on stored tubers in Hamedan and Ardabil provinces, two of the largest areas of potato plantation in Iran. However, there were conflicting reports on the identity and pathogenicity of the Fusarium species. The objectives in this study were to isolate and identify diseasecausing Fusarium spp. from infected potato tubers, and to ascertain their pathogenicity. Sixty-three isolates of Fusarium were obtained from potato tubers collected from Hamedan and Ardabil provinces and identified through morphological characters as F. solani, F. verticillioides, F. culmorum, F. lateritium, F. equiseti, F. sambucinum, and F. oxysporum. All of these 63 isolates were evaluated for their pathogenicity on healthy potato tubers. The results of the pathogenicity test revealed that F. solani isolates FSO24, FSO112, FSO208 and F. oxysporum isolates FOX81 and FOX111 were the most damaging causing typical dry rot symptoms. Molecular identification and mycotoxin-producing ability of Fusarium spp. are being investigated.