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http://dx.doi.org/10.5423/RPD.2002.8.4.220

Blue Mold on Melon (Cucumis melo) Caused by Penicillium oxalicum  

Wwon, Jin-Hyeuk (경상남도농업기술원)
Kang, Soo-Woong (진주산업대학교)
Kim, Jung-Soo (진주산업대학교)
Park, Chang-seuk (경상대학교)
Publication Information
Research in Plant Disease / v.8, no.4, 2002 , pp. 220-223 More about this Journal
Abstract
In April of 2002, fruit rot infected with blue mold was found at maturing stage of melon (Cucumis melo cv. Gayabaegja) growing under tunnel cultivation in Daesan-myon, Haman-gun, Gyeongnam Province, Korea. Floral parts were infected first and colonized by fungal mycelial mats. From the point of infection, fruits become collapsed and mostly ruptured. The pathogenic fungus from infected fruits was isolated. Colony color of the fungus was white on MEA and CYA agar, Conidia were ellipsoid and 2.6~7.4$\times$2.6~5.8 ${\mu}{\textrm}{m}$ in size. Stipes were 86~320$\times$2.8~4.3 ${\mu}{\textrm}{m}$ in size. Metulae were 12.4~31.6$\times$2.6~4.2 ${\mu}{\textrm}{m}$ in size. Phialides were ampulliform to cylindroid, and 8.2~15.4$\times$3.6~4.6 ${\mu}{\textrm}{m}$ in size. Rate of infected fruits in the field was 4.3%. Based on the cultural and mycological characteristics and pathogenecity test on host plants, the fungus was identified as Penicillium oxalicum, This is the first report on the blue mold of melon (Cucumis melo) caused by P. oxalicum in Korea.
Keywords
Blue mold; Cucumis melo; Penicillium oxalicum;
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