中国油料作物学报2012，Vol.34Issue(4)：419-424,6.
油菜黑胫病菌Leptosphaeria biglobosa生物学特性研究
Biological characteristics of Leptosphaeria biglobosa on Chinese oilseed rape
摘要
Abstract
This paper focused on biological characteristics of Leptosphaeria biglobosa, the causal agent of blackleg disease on Chinese oilseed rape, as well as the effects of temperature, pH, illumination, nitrogen source and carbon source on mycelial growth and sporulation of the pathogen. Results showed that L. biglobosa could conduct mycelial growth and sporulation at the temperature between 5℃ and 35℃ with the optimum temperature at 25℃. The pathogen produced spores under pH4 to pH10, the optimum at pH7. Alternate light and darkness was favorable to mycelial growth and sporulation, while continuous light inhibited the production of mycelia and conidia in particular. The optimal carbon source and nitrogen sources were soluble starch and beef extract respectively. The lethal temperature for conidia of L. biglobosa was 52℃.关键词
油菜黑胫病/菌丝体生长/分生孢子/产孢量/光温/碳源/氮源Key words
Phoma stem canker/Mycelial growth/Conidia/Sporulation/Light and temperature/Carbon source/Nitrogen source分类
农业科技引用本文复制引用
郝丽芬,宋培玲,李子钦,包玉英,李强生,胡宝成..油菜黑胫病菌Leptosphaeria biglobosa生物学特性研究[J].中国油料作物学报,2012,34(4):419-424,6.基金项目
内蒙古农牧业科学院创新基金(NM22032) （NM22032）
内蒙古农牧业科学院院青年创新基金(NMJ21021) （NMJ21021）
国家科技支撑计划(200900003986) （200900003986）
