Natural occurrence of deoxynivalenol and deoxynivalenol-3-glucoside in various wheat cultivars grown in Jiangsu province, China
文献类型: 外文期刊
第一作者: Dong, F.
作者: Dong, F.;Wang, S.;Yu, M.;Xu, J.;Shi, J.;Dong, F.;Wang, S.;Yu, M.;Xu, J.;Shi, J.;Dong, F.;Wang, S.;Yu, M.;Xu, J.;Shi, J.;Dong, F.;Wang, S.;Yu, M.;Xu, J.;Shi, J.;Dong, F.;Wang, S.;Yu, M.;Xu, J.;Shi, J.;Sun, Y.
作者机构:
关键词: deoxynivalenol;deoxynivalenol-3-glucoside;wheat cultivar;Jiangsu province
期刊名称:WORLD MYCOTOXIN JOURNAL ( 影响因子:3.353; 五年影响因子:3.108 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Deoxynivalenol (DON) is a major mycotoxin found in wheat infected with Fusarium fungi. DON can be converted by plant detoxification into a form of 'masked mycotoxin' termed deoxynivalenol-3-glucoside (DON-3G). To recommend appropriate wheat cultivars for planting in order to reduce DON contamination in Jiangsu province, where a traditional Fusarium head blight (FHB) epidemic area is located in the lower reaches of Yangtze-Huaihe, we evaluated the capacity of various wheat cultivars to transform DON into DON-3G under field conditions. We collected and evaluated samples from 11 major wheat cultivars grown in 63 experimental stations in Jiangsu province in 2015 and 2016. All samples were contaminated with DON, with an average concentration of 2,087 +/- 112 and 2,601 +/- 126 mu g/kg in 2015 and 2016, respectively. DON-3G was detected in 425 (96%) and 405 (97%) samples in 2015 and 2016, with an average concentration of 545 +/- 28 and 819 +/- 44 mu g/kg, respectively. The DON-3G/DON ratio ranged from 5 to 84% (average, 30%) in 2015 and from 0 to 71% (average, 31%) in 2016. DON levels were highly correlated with DON-3G concentrations (P< 0.01), and the FHB resistance of the wheat cultivars was proportional to their capacity to convert DON to DON-3G. Importantly, region, cultivar, and region x cultivar interaction all significantly affected DON and DON-3G concentrations and DON-3G/DON ratios. In general, FHB-resistant cultivars, such as Sumai 188 and Ningmai 13, had lower levels of DON and DON-3G than the others. However, additional factors, including the growing region and environmental variables, were important for wheat management when other wheat cultivars were evaluated.
分类号: Q93
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