樟树、柑橘、冬青卫矛炭疽病病原学比较研究

采用组织分离法,对樟树(C innam omum camphora)、冬青卫矛(E uonymus japon icus)、柑橘(C itrus reticu lata)3个树种炭疽病进行病原分离,经纯化培养,在此基础上进行寄主接种试验。结果表明,3种炭疽病的病原均为炭疽菌属的胶孢炭疽菌(Colletotrichum g loesporioid es)。3个炭疽菌的分生孢子萌发、附着孢的形态学特征以及纯化培养的菌落均存在一定的差异。致病性测定结果显示,3个菌种分别对同一寄主的致病性存在一定的差异。

Comparison of the Pathogen of Cinnamomum camphora, Euonymus japonicus and Citrus reticulata Anthracnose

The pathogens of anthracnose from 3 tree species,Cinnamomum camphora,Euonymus japonicus,Citrus reticulata were isolated by using tissue isolation method .The inoculation experiment on the host was conducted.It was proved that the pathogen of 3 kinds of anthracnose was Colletotrichum gloeosporioides.There existed some differences among the 3 isolates on conidia germination,morphological characteristic and pure cultured colony.The result of pathogenic test showed that the 3 isolates had different pathogenicities on the same host.