中文摘要：禾谷镰刀菌复合种群（FGSC）会导致禾谷类作物赤霉病。目前，韩国出现的禾谷镰刀菌复合种群包括四种镰刀菌（F. graminearum, F. asiaticum, F. boothii, and F. meridionale）。 本研究首次报道了一种从韩国大麦、玉米和水稻中分离出来的、新的镰刀菌种类（F. vorosii），并利用联合多基因测序方法对这种镰刀菌菌株进行系统进化分析来确定其种类。此外，由这些菌株产生的大型分生孢子与F. vorosii的形态非常相似。化学分析表明，F. vorosii菌株产生了多种单端孢霉烯族毒素（如雪腐镰刀菌烯醇和脱氧雪腐镰刀菌烯醇）以及伴随着玉米赤霉烯酮出现的乙酰化衍生物。致病性试验表明， 所研究的F. vorosii菌株对大麦、玉米和水稻具有致病性。本文对韩国禾谷类作物中的F. vorosii，及其对大麦和玉米的致病性，以及其产生单端孢霉烯族毒素和玉米赤霉烯酮的能力。
外文摘要：Fusarium graminearum species complex (FGSC) causes Fusarium head blight in small grain cereals. To date, four species (F. graminearum, F. asiaticum, F. boothii, and F. meridionale ) belonging to FGSC frequently occur in Korean cereals. In addition, we first reported the occurrence of additional species (F. vorosii ) within FGSC, which was isolated from barley, corn, and rice in Korea. Phylogenetic analysis of the Fusarium isolates of this group using combined multi-gene sequences confirmed species identification. Moreover, the macroconidia produced by these isolates were morphologically similar to those of the F. vorosii holotype. Chemical analysis indicated that the F. vorosii isolates produced various trichothecenes such as nivalenol and deoxynivalenol with their acetyl derivatives along with zearalenone. Pathogenicity tests demonstrated that all of the F. vorosii isolates examined were pathogenic on barley, corn, and rice with variation in aggressiveness. This study is the first report of F. vorosii in Korean cereals, their pathogenicity towards barley and corn, and their ability to produce trichothecenes and zearalenone.
外文关键词：cereal；Fusarium head blight；Fusarium vorosii；mycotoxin
作者：Lee, T；Paek, JS；Lee, KA；等
作者单位：Natl Inst Agr Sci，South Korea
期刊名称：PLANT PATHOLOGY JOURNAL
期刊影响因子：0.92
出版年份：2016
出版刊次：10
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