摘要
Rhizopus soft rot of lily (Lilium longiflorum) caused by Rhizopus oryzae was observed in the experimental field in Taean Lily Experiment Station in Korea, 2012. The typical symptoms were water-soaked lesions on bottom stem and leaf rot. The lesion rapidly expanded and the plant was softened totally. The fungus grew vigorously at an optimum temperature () and brownish colony and black sporangia were formed on potato dextrose agar medium. Sporangiophores formed on end of sporangia were sub-globose, brownish and in size. Sporangia were globose, blackish and in size. Sporangiospores were irregularly oval and sub-globose, brownish in size. On the basis of mycological characteristics, analyzing sequences of internal transcribed spacer region of ribosomal DNA, and pathogenicity test on host plants, the causal fungus was identified as R. oryzae. This is the first report of Rhizopus soft rot on lily caused by R. oryzae in Korea.
摘要译文
2012年在韩国泰安百合实验站的实验田中观察到米根霉（Rhizopus orifzae）引起的百合（Lilium longiflorum）软根腐病。典型的症状是底茎和叶腐烂的水浸病变。病变迅速扩大，植物完全软化。真菌在最佳温度下生长旺盛（），在马铃薯葡萄糖琼脂培养基上形成褐色菌落和黑色孢子囊。在孢子囊末端形成的孢子囊是亚球状，褐色和大小。孢子囊呈球状，黑色，大小不一。孢子囊孢子不规则卵形，近球形，褐色。在真菌学特征的基础上，分析核糖体DNA内部转录间隔区的序列，并对宿主植物进行致病性试验，确定因果真菌为米曲霉（R. oryzae）。这是韩国R. oryzae引起的百合根腐病的首次报道。
Hahm, Soo-Sang; Hong, Gye-Wan; Kim, Byung-Ryun; Han, Kwangseop; Choi, Takyong; Nam, Yungyu; Yu, Seunghun;. Rhizopus Soft Rot on Lily Caused by Rhizopus oryzae in Korea[J]. Research in Plant Disease, 2014,20(1): 50-53