八仙花炭疽病病原菌鉴定及其生物学特性  

Pathogen Identification and Biological Characteristics of Anthracnose in Hydrangea macrophylla Ser.

作　　者：齐慧霞[1] 李双民 余金咏[1] 刘锐[1] 杨文兰[1] 

机构地区：[1]河北科技师范学院,河北昌黎066600 [2]昌黎职业技术教育中心,河北昌黎066600

出　　处：《经济林研究》2008年第3期84-87,共4页Non-wood Forest Research

摘　　要：对河北秦皇岛市发生的八仙花炭疽菌进行了病原菌分离鉴定,并对其生物学特性进行了研究,以期为该病的发生规律和防治研究提供理论依据。结果表明,该病的病原菌为胶胞炭疽菌Colletotrichumgloeosporioides,菌丝生长最适宜的温度为25℃,30-35℃产孢量最大;菌丝生长最适pH值是6-7,产孢最适pH值是4;光暗交替环境下培养菌丝生长最好,产孢量最多。碳源以葡萄糖对菌落发育最好,产孢以蔗糖和麦芽糖最好;氮源以KNO3对菌落发育最好,产孢以蛋白胨和甘氨酸最好。In order to provide a theoretical basis for the researches on occurrence regularity and control of anthracnose in Hydrangea macrophylla Ser.,pathogen of anthracnose in H.macrophylla Ser.occurring in Qinhuangdao City was separated and identified,and biological characteristics of pathogen were researched.The results showed that the pathogen was Colletotrichum gloeosporioides.The optimum temperature for mycelia growth was 25 ℃,and the temperature ranging from 30℃ to 35℃ was suitable for spore germination.The optimum pH value for mycelia growth was from 6 to 7,and it was 4 for spore germination.The alternation of light and darkness benefited mycelia growth and spore germination.Among 4 carbon sources,glucose was the best carbon source for mycelia growth,and sucrose and maltose were better for spore germination.KNO3 was the best nitrogen source for mycelia growth in 4 nitrogen sources,and peptone and glycine were better for spore germination.

关 键 词：森林保护学 八仙花 炭疽病 病原菌鉴定 生物学特性 

分 类 号：S681.1[农业科学—观赏园艺]