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Journal of Crop Protection، جلد ۱، شماره ۴، صفحات ۲۷۱-۲۷۷
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عنوان انگلیسی Study on mating types and sensitivity to strobilurin fungicide in fungal wheat pathogen Mycosphaerella graminicola
چکیده انگلیسی مقاله Mycosphaerella graminicola, the causal agent of septoria tritici blotch (STB), is a widespread and significant pathogen of wheat. To determine mating types, 89 isolates were collected randomly from wheat fields of Khuzestan, East Azerbaijan, Ardebil, Kermanshah and Golestan provinces of Iran, during 2006-7. DNA was extracted based on standard protocols. Multiplex PCR was conducted using two pairs of mating type-specific primers for MAT1-1 and MAT1-2. Sensitivity to strobilurin fungicide was determined using strobSNPrc7 and strobSNPrc1 primers. The results showed that in 35 isolates, a fragment of 340 bp amplified with MAT1-1 idiomorph specific primers and in 54 isolates a fragment of 660 bp was amplified with MAT1-2 idiomorph specific primers. While the mating type frequencies were highly unequal, the MAT1-1 was predominant. All isolates were sensitive to strobilurin and amplified a fragment of 639 bp. It is concluded that both mating types are present in Iran, although with different frequencies, which may affect genetic variation through sexual cycle. Meanwhile the studied isolates were not resistant to strobilurin fungicides which may be due to growing wheat cultivars resistant to STB rather than using strobilurin fungicides as a dominant control method.
کلیدواژه‌های انگلیسی مقاله Mat1-1,Strobilurin,Zymoseptoria tritici,Resistance
نویسندگان مقاله عباس سعیدی |
department biotechnology, college of new technologies and energy engineering, shahid beheshti university, gc, tehran, iran
سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

ناصر صفایی |
department of plant pathology, college of agriculture, university of tarbiat modares, tehran, iran
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

پریسا پالیزی |
department biotechnology, college of new technologies and energy engineering, shahid beheshti university, gc, tehran, iran
سازمان اصلی تایید شده: دانشگاه شهید بهشتی (Shahid beheshti university)

نشانی اینترنتی http://jcp.modares.ac.ir/article_331_54a2329ad2137c38bacff72eb7ddb7ac.pdf
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