吉林农业大学学报2017，Vol.39Issue(3)：281-286,6.DOI:10.13327/j.jjlau.2016.3178
白藓茎点霉叶斑病菌的生物学特性及药剂敏感性
Biological Characteristics and Fungicide Susceptibility of Pathogens of Dictamnus dasycarpus Leaf Spot
摘要
Abstract
The symptoms of Dictamnus dasycarpus leaf spot were described in this study.Based on morphological and cultural characteristics of the isolates and results of its sequence analysis,the pathogen was identified as Phoma dictamnicola.The analysis results of biological characteristics of the pathogen showed that the suitable temperature for mycelial growth was 10-30 ℃,and 25 ℃ was the optimal.The pathogen could grow on the medium with pH from 4 to 11,and 7 was the optimal.The optimal medium for mycelial growth was PDA.Glucose and peptone were optimal for mycelial growth.The susceptibility of 10 fungicides to Phoma dictamnicola was detected by mycelial growth rate method.The results showed that the pathogen was more sensitive to 50％ prochloraz EC,10％ difenoconazole WG,40％ flusilazole EC,and 50％ KresoxiM-Methy WG(EC50＜0.1 μg/mL);followed by 250 g/L pyraclostrobin EC and 25％ propiconazole EC (0.1 μg/mL＜EC50＜ 1.0 μg/mL).关键词
白藓/白藓茎点霉/病原鉴定/生物学特性/药剂敏感性Key words
Dictamnus dasycarpus/pathogen identification/Phoma dictamnicola/biological characteristic/fungicide susceptibility分类
农业科技引用本文复制引用
李海洋,魏春艳,刘丽玲,李海滨,白庆荣..白藓茎点霉叶斑病菌的生物学特性及药剂敏感性[J].吉林农业大学学报,2017,39(3):281-286,6.基金项目
国家质检总局科技计划项目(2013IK276),吉林省教育厅项目[吉教科合字(2014)第463号],国家自然科学基金项目(31500022) （2013IK276）
