中文摘要：梨孢镰刀菌是感染了赤霉病的小麦粒中常见的镰刀菌。它产生包括雪腐镰刀菌烯醇(NIV)在内的多种霉菌毒素。本研究以5°C为间隔，探索了5～40°C体外培养温度对菌落生长及NIV产生的影响。研究发现，温度显著影响了染病麦穗的小花侵染发生率与真菌生物量(如DNA量所示)，但不影响穗组织中NIV的含量。盆栽实验表明接种梨孢镰刀菌不会减少产量。
外文摘要：Fusarium poae is one of the Fusarium species commonly detected in wheat kernels affected by Fusarium Head Blight. Fusarium poae produces a wide range of mycotoxins including nivalenol (NIV). The effect of temperature on colony growth and NIV production was investigated in vitro at 5–40 °C with 5 °C intervals. When the data were fit to a Beta equation (R2 ≥ 0.97), the optimal temperature was estimated to be 24.7 °C for colony growth and 27.5 °C for NIV production. The effects of temperature on infection incidence, fungal biomass, and NIV contamination were investigated by inoculating potted durum wheat plants at full anthesis; inoculated heads were kept at 10–40 °C with 5 °C intervals for 3 days and then at ambient temperature until ripening. Temperature significantly affected the incidence of floret infection and fungal biomass (as indicated by DNA amount) in the affected heads but did not affect NIV content in the head tissue. Inoculation of potted plants with F. poae did not reduce yield.
外文关键词：Mycotoxin；Fusarium head blight；Small-grain cereals；Epidemiology
作者：Nazari, L；Pattori, E；Manstretta, V；Terzi, V；Morcia, C；Somma, S；Moretti, A；Ritieni, A；Rossi, V
作者单位：Univ Cattolica Sacro Cuore
期刊名称：FOOD MICROBIOLOGY
期刊影响因子：3.682
出版年份：2018
出版刊次：12
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