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http://dx.doi.org/10.5423/RPD.2014.20.1.050

Rhizopus Soft Rot on Lily Caused by Rhizopus oryzae in Korea  

Hahm, Soo-Sang (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Hong, Gye-Wan (Taean Lily Expt. Station, Chungnam Agricultural Research and Extension Services)
Kim, Byung-Ryun (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Han, Kwangseop (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Choi, Takyong (Taean Lily Expt. Station, Chungnam Agricultural Research and Extension Services)
Nam, Yungyu (Agricultural Environment Research Division, Chungnam Agricultural Research and Extension Services)
Yu, Seunghun (Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University)
Publication Information
Research in Plant Disease / v.20, no.1, 2014 , pp. 50-53 More about this Journal
Abstract
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 ($25^{\circ}C$) and brownish colony and black sporangia were formed on potato dextrose agar medium. Sporangiophores formed on end of sporangia were sub-globose, brownish and $6-10{\mu}m$ in size. Sporangia were globose, blackish and $87-116{\mu}m$ in size. Sporangiospores were irregularly oval and sub-globose, brownish $4-8{\mu}m$ 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.
Keywords
Lily; Lilium longiflorum; Rhizopus soft rot; Rhizopus oryzae;
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Times Cited By KSCI : 1  (Citation Analysis)
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