苏鲁两省意大利杨和中华红叶杨白粉病的病原菌研究  

Studies on the Symptoms and Phyllactinia populi on Italian Hybrid Poplars and Populus deltoides cv. Zhonghua hongye

作　　者：赵桂华[1] 李德伟 席刚俊[1] 

机构地区：[1]江苏农林职业技术学院,江苏句容212400 [2]The Connecticut Agricultural Experiment Station,Valley Laboratory

出　　处：《西部林业科学》2013年第3期1-6,共6页Journal of West China Forestry Science

基　　金：山东省科技发展计划项目(NO.2010GNC10928);国家自然科学基金(NO.31170605)

摘　　要：2011～2012年通过对苏鲁两省杨树白粉病害的调查,采集病原标本进行了室内切片鉴定,描述了症状及病原菌的形态,分析了寄主及分布范围。结果表明,根据病原菌的形态特征,引起苏鲁两省杨树白粉病的病原菌被鉴定为杨球针壳,该菌为害I-69杨、I-72杨、I-107杨、NL895杨和中华红叶杨属首次报道。杨球针壳能寄生在多种杨树上,严重时引起杨树提前落叶;同时发现,杨球针壳、落叶松杨叶锈菌的夏孢子阶段和杨盘二孢菌3种病原菌同时生长在同一张杨树叶片上,引起3种类型的病害症状,这种现象也属首次报道。A powdery mildew on Poplars was studied for its occurrence, damage, and distribution in Jiangsu and Shandong provinces. Results showed that the powdery mildew was able to infect a number of species hybrids, and eultivars of Populus and caused premature defoliation. According to its morphological characters, the pathogen oc- curred in the two provinces was identified as Phyllactinia populi. It was reported for first time on Italian hybrid Pop- lar cuhivars ： I - 69, I - 72, I - 107, and Populus deltoides ev. Zhonghua hongye. Its co-occurrence with uredia of Melampsora larici-populina and Marssonina brunnea on the same leaf was reported for first time also.

关 键 词：意大利杨 中华红叶杨 白粉病 症状 病原菌 形态 寄生性 

分 类 号：S763[农业科学—森林保护学]