中文摘要：小麦中霉菌毒素的出现给人体和动物的健康造成危害。巴西南部的气候为禾谷镰刀菌的侵染及真菌毒素的积累提供了条件。本研究旨在评估新型小麦基因型对小麦赤霉病（FHB）的行为、控制新型杀菌剂配方的性能及其与谷物中真菌毒素浓度的关系。研究发现在巴西南部，杀菌剂对控制FHB和减少谷物中DON污染的效果很好。应推荐使用丙硫菌唑。一些基因型表现出高浓度的DON，与田间FHB的严重程度无直接关系。
外文摘要：Mycotoxins occurrence in wheat grains impose risks to human and animal health. The southern Brazil has favorable weather conditions for Fusarium graminearum infections and consequently for mycotoxins accumulation on grains. The goal of this study was to evaluate the behavior of new wheat commercial genotypes to Fusarium Head Blight (FHB), to control performance of new fungicide formulations and their relationship with mycotoxins concentration in grains. The manly mycotoxin occurrence on wheat grains in southern Brazil was deoxynivalenol (DON). Two cultivars showed high DON concentration above the tolerance limits (>3000g kg(-1)). Many other mycotoxins monitored presented concentrations below method detection limit. Satisfactory levels of fungicide effectiveness were achieved against F. graminearum. Some fungicides promoted a satisfactory decrease on DON accumulation in grains. The best results were obtained when prothioconazole was present. SDHI (Succinate dehydrogenase inhibitors) + QoI (Quinone outside inhibitors) fungicides showed benefic effects at FHB control at field, but it did not promote satisfactory reduction on DON contamination. Fungicides can be used satisfactory for FHB control and reduce DON contamination in grains in southern Brazil. The presence of prothioconazole should be recommended. Some genotypes showed high DON concentration and it was not directly related with FHB severity at field.
外文关键词：Deoxynivalenol；Fusarium graminearum；Triticum aestivum；fungicides
作者：Marques, LN；Pizzutti,IR；Balardin,RS；Dos Santos,ID；Dias,JV；Stefanello,MT；Serafini,PT
作者单位：Univ Fed Santa Maria
期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
期刊影响因子：1.247
出版年份：2017
出版刊次：4
点击下载：巴西南部控制赤霉病的杀菌剂暴露对小麦籽粒中霉菌毒素发生的影响