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http://dx.doi.org/10.4489/KJM.2008.36.2.199

Occurrence of Rhizopus Soft Rot on Melon (Cucumis melo L.) Caused by Rhizopus stolonifer in Korea  

Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services)
Publication Information
The Korean Journal of Mycology / v.36, no.2, 2008 , pp. 199-202 More about this Journal
Abstract
Rhizopus soft rot caused by Rhizopus stolonifer occurred on melon (Cucumis melo L.) in the box at Jinju City Wholesale Market of Agricultural Products at Gyeongnam province in Korea. The infected fruits were rapidly water-soaked, softened, black and eventually rotted. The symptoms were infected from wounds at harvest time. The colony were white to light brown, formed much sporangiospores. The optimum temperature of the fungus was $30^{\circ}C$. Sporangia were globose or hemispheric, white at first and gradually to black, and $80{\sim}195\;{\mu}m$ in size. Sporangiophores were $12{\sim}24\;{\mu}m$ in width. Columella were hemispheric, and $70{\sim}90\;{\mu}m$ in size. Sporangiospores were irregular round or oval, brownish-black and $9{\sim}20\;{\times}\;6{\sim}8\;{\mu}m$ in size. On the basis of symptom, mycological characteristics and pathogenicity to melon, the causal fungus was identified as Rhizopus stolonifer (Ehrenb.) Vuill.. This is the first report of Rhizopus soft rot by R. stolonifer on melon in Korea.
Keywords
Cucumis melo; Melon; Rhizopus soft rot; Rhizopus stolonifer;
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