Forecasting of potato white mold by assessment of ascospores in Iran fields
Ali Mirzaei 3, B-C,F
Wang Ling 4, B,D
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Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
Department of Plant Protection, College of Agriculture, Azad University of Tabriz, Iran
College of Biosystems Engineering and Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
Submission date: 2018-01-06
Acceptance date: 2018-06-13
Corresponding author
Seyedmohammadreza Ojaghian   

Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
Journal of Plant Protection Research 2018;58(2):168-175
Potato white mold caused by Sclerotinia sclerotiorum is an important plant disease occurred in many potato-producing areas throughout the world. In this study, a specific diagnostic method was used to detect and quantify S. sclerotiorum ascospores, and its ability was assessed in a forecasting scheme in potato fields during flowering period of 2011 to 2014 in Bahar county, Hamedan province. Using GenEMBL database, a primer pair, HZSCREV and HZSCFOR, was designed and optimized for the pathogen. After testing the sensitivity of primers, DNA was extracted from samples of outdoor Burkard trap from potato fields. A linear association was observed between pathogen DNA and the number of ascospores using quantitative PCR (qPCR) technique in presence of SYBR dye. The qPCR could successfully detect DNA amount representing two S. sclerotiorum ascospores, and was not sensitive to a variety of tested fungi such as Botrytis cinerea, Alternaria brassicae, Fusarium solani. Contrary to rainfall amount, a direct relationship was found between ascospore number and incidence of potato white mold during 2011 to 2014.
The authors have declared that no conflict of interests exist.
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