中文摘要：感染玉米粒的产毒真菌是巴西的主要问题之一，因为它们与人类和动物的毒理学影响有关。依据真菌引起的症状，已经利用多种机械物理方法从大量玉米粒中分离出污染籽粒。本研究的目的是评估田间采集的玉米粒样品中症状的出现或类型是否与真菌发生率和总伏马毒素水平相关。结果表明玉米籽粒中伏马菌素水平与镰刀菌属的频率无关。
外文摘要：Toxigenic fungi that infect corn grains are among the major problems in Brazil as they are associated with toxicological implications for both humans and animals. Mechanical-physical methods have been used to separate contaminated grains in lots of corn kernels based on the symptoms caused by fungi. The objective of this study was to assess whether the presence or the type of symptoms were associated with fungal incidence and total fumonisin levels in corn kernel samples from the field. Kernels of two hybrids were separated visually into three groups: 1) asymptomatic or symptomatic exhibiting 2) kernel rot or 3) kernel streak symptoms. A high frequency of Fusarium spp. was observed in asymptomatic (69.5%) and kernel rot (69.9%). Stenocarpella sp. and Penicillium sp. were found in kernel rot (16.0%) and kernel streak (44.1%), respectively. High fumonisin levels (7.24 μg.g-1), above the maximum tolerated limit, were detected only in kernel rot. No association between fumonisin levels and the frequency of Fusarium spp. in kernels was found.
外文关键词：Zea mays；Corn grain symptomatology；Fungal incidence；Mycotoxins
作者：Lanza, FE；Zambolim, L；Costa, RV；Figueiredo, JEF；Silva, DD；Queiroz,VAV；Guimaraes, EA；Cota, LV
作者单位：Embrapa Milho & Sorgo
期刊名称：TROPICAL PLANT PATHOLOGY
期刊影响因子：0.835
出版年份：2017
出版刊次：4
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