热带作物学报2011，Vol.32Issue(4)：728-733,6.
木薯棒孢霉叶斑病病原鉴定及其生物学特性测定
Identification of a Pathogen from Corynespora Leaf Spot Disaese of Cassava and Its Biological Characteristics
摘要
Abstract
A new leaf spot disease was first found in the main cassava planting regions during a survey in 2009. Morphlogical identification and ITS sequence analysis indicated the pathogen was Corynespora cassiicola, which was named CCCHN01. The optimal condition for the mycelial growth included CMA or ME medium, 26 ℃ to 28 ℃, pH 6 and continuous light. Alternative light or continuous light was the the optimal condition for sporulation. The optimal temperature for conidia germination was 28 ℃ to 30℃ and the lethal temperature was 55 ℃ for 10 min. Five strains including CCCHNO1, two strains from papaya and the others from rubber trees could infect cassava and papaya with different virulence. All strains except the strain from papaya could infect rubber trees .关键词
木薯；山扁豆生棒孢；生物学特性Key words
Cassava/Corynespora cassiicola/Biological characteristics分类
农业科技引用本文复制引用
裴月令,时涛,蔡吉苗,李超萍,樊春俊,黄贵修..木薯棒孢霉叶斑病病原鉴定及其生物学特性测定[J].热带作物学报,2011,32(4):728-733,6.基金项目
国家木薯现代产业技术体系建设项目(nycytx-17-37)；农业部公益行业科研专项(nyhyzx07-13-5)；海南省自然科学基金项目(807041). （nycytx-17-37）
