地涌金莲一种新病害病原菌特性研究  

Characterization of the Pathogen Causing Golden Lotus Banana New Disease

作　　者：傅本重[1,2] 张智慧[2] 王立华[1] 李国元[1] 吴瑶[1] 张俊忠[2] 张颖[2] 

机构地区：[1]湖北工程学院生命科学技术学院特色果蔬质量安全控制湖北省重点实验室,湖北孝感432000 [2]西南林业大学林学院,云南昆明650224

出　　处：《云南农业大学学报（自然科学版）》2014年第3期347-352,共6页Journal of Yunnan Agricultural University:Natural Science

基　　金：国家自然科学基金项目(31200488);云南省应用基础研究计划(2011FB066);特色果蔬质量安全控制湖北省重点实验室开放基金项目(2013K02)

摘　　要：地涌金莲[Ensete lasiocarpum（Franch.）Cheesman]叶斑病是一种在该植物上首次报道的病害.为了研究地涌金莲叶斑病病原菌[Alternaria alternata（Fr.）Keissler]的特性,对不同条件下的病原菌菌丝生长进行了观测.结果表明：该病菌在玉米粉培养基上菌丝生长良好,碳源和氮源分别以葡萄糖和硝酸铵为宜,在pH为6.0～9.0的范围内生长良好,菌丝致死温度为50℃.在供试的3种药剂平板试验中,咪鲜胺对病原菌的抑制作用效果最好,在推荐的使用浓度下相对抑菌率为94.6％.Leaf spot disease of Golden lotus banana [Ensete lasiocarpum （Franch.） Cheesman] is the first report disease occurred on this plant.In order to describe the characteristics of the pathogen [Alternaria alternata （Fr.） Keissler],the mycelial growth in different conditions were observed.The results indicated that the pathogen mycelia were grown well on corn meal medium,optimal carbon and nitrogen source were dextrose and NH4NO3 respectively,suitable pH range was 6.0 ～9.0,and the lethal temperature was 50℃.The most effective fungicide was prochloraz among the 3 tested pesticides,and the relative inhibition rate was 94.6% under the recommended concentration.

关 键 词：地涌金莲 新病害 病原菌 生物学特性 

分 类 号：S436.81[农业科学—农业昆虫与害虫防治]