Isebaert S, Haesaert G, Devreese R, Maene P, Fremaut F, Vlaemynck G
Hogeschool Gent, Department of Biotechnology, Landscape Architecture and Agriculture, CTO (Centrum voor Toegepast Onderzoek), Voskenslaan 270, BE-9000 Gent, Belgium.
Commun Agric Appl Biol Sci. 2005;70(3):129-36.
Fusarium species cause not only root, stem and ear rot with severe reductions in crop yield, they produce also toxic secondary metabolites (mycotoxins) such as deoxynivalenol (DON) and zearalenone (ZEA). During several growing seasons the presence of Fusarium spp was followed up. DON and ZEA were determined and related to infection levels. The distribution of DON and ZEA in the different plant parts was studied as well as the influence of the ensiling process on the mycotoxin content. More or less important varietal differences in susceptibility for Fusarium spp. could be detected. DON and ZEA were clearly present in most of the analysed samples. No clear relationship could be detected between visual disease symptoms and mycotoxin content. The accumulation of DON and ZEA was different for the analysed aerial plant parts. The ensiling process gave no reduction of the mycotoxin content.
镰刀菌不仅会导致根腐、茎腐和穗腐，严重降低作物产量，还会产生有毒的次生代谢产物（霉菌毒素），如脱氧雪腐镰刀菌烯醇（DON）和玉米赤霉烯酮（ZEA）。在几个生长季节中，对镰刀菌属的存在情况进行了跟踪。测定了DON和ZEA，并将其与感染水平相关联。研究了DON和ZEA在不同植物部位的分布以及青贮过程对霉菌毒素含量的影响。可以检测到对镰刀菌属的易感性存在或多或少重要的品种差异。在大多数分析样品中都明显存在DON和ZEA。在视觉病害症状和霉菌毒素含量之间未检测到明确的关系。分析的地上植物部位中DON和ZEA的积累情况不同。青贮过程并未降低霉菌毒素含量。
