Anthracnose of Perilla Caused by Colletotrichum spp. and Glomerella cingulata
Anthracnose of Perilla Caused by Colletotrichum spp. and Glomerella cingulata
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由炭疽菌引起的紫苏炭疽病。
作者：
Wan;B. Lee;W. Cho;D. Shin
在1997年至2000年的疾病调查期间，在韩国的几个地点的温室和开阔地种植的紫苏植物上观察到炭疽病的严重爆发。对53个炭疽菌（Colletotrichum spp.）从紫苏病株中分离到炭疽菌（Glomerella sp.），并根据形态特征和培养特性进行鉴定。40个菌株被鉴定为胶孢炭疽菌（Colletotrichum gloeosporioides），3个菌株被鉴定为C. coccodes、5个分离物为C. dematium，其余5个为Glomerella cingulata，C.胶孢菌所有分离的C.用人工接种的方法测定了胶孢菌对紫苏的致病力，结果表明胶孢菌对紫苏的致病力较强，而其它几种胶孢菌的致病力较弱或不强。人工接种紫苏炭疽病菌，诱发紫苏炭疽病症状。gloeosporioides与田间观察到的相似。本研究表明，C.紫苏炭疽病的主要病原菌是胶孢菌。
Serve outbreaks of anthracnose were observed on perilla plants grown in greenhouses and open fields in several locations in Korea during the disease survey from 1997 to 2000. A total of 53 isolates of Colletotrichum spp. and Glomerella sp. was obtained from diseased perilla plants and identified based on their morphological and cultural characteristics. Forty isolates were identified as Colletotrichum gloeosporioides, three isolates as C. coccodes, five isolates as C. dematium, and the other five isolates as Glomerella cingulata, the teleomorph of C. gloeosporioides. All isolates of C. gloeosporioides tested by artificial inoculation were strongly virulent on perilla plants, but isolates of the other species were weakly or not virulent. Anthracnose symptoms induced on the perilla plants by artificial inoculation with the isolates of C. gloeosporioides were similar to those observed in the fields. This study revealed that C. gloeosporioides is the main causal fungus of perilla anthracnose.