Occurrence of Fruit Rot of Melon Caused by Sclerotium rolfsii in Korea.
- Author:
Jin Hyeuk KWON
1
;
Tran Thi Phuong CHI
;
Chang Seuk PARK
Author Information
1. Gyeongsangnam-do Agricultural Research and Extension Services, Jinju 660-360, Korea. kwon825@korea.ac.kr
- Publication Type:Brief Communication
- Keywords:
Cucumis melo;
Fruit rot;
Melon;
Sclerotium rolfsii
- MeSH:
Allyl Compounds;
Cucumis melo;
Cucurbitaceae;
Fruit;
Fungi;
Humans;
Hyphae;
Korea;
Plants;
Soil;
Sulfides
- From:Mycobiology
2009;37(2):158-159
- CountryRepublic of Korea
- Language:English
-
Abstract:
In 2007 to 2008, a fruit rot of Melon (Cucumis melo L.) caused by Sclerotium rolfsii occurred sporadically in a farmer's vinyl house in Jinju City. The symptoms started with watersoaking lesion and progressed into the rotting of the surface of fruit. White mycelial mats appeared on the lesion at the surface of the fruit and a number of sclerotia formed on the fruit near the soil line. The sclerotia were globoid in shape, 1~3 mm in size, and white to brown in color. The hyphal width was measured 3 to 8 microm. The optimum temperature for mycelial growth and sclerotia formation was 30 on PDA. Typical clamp connections were observed in hyphae of grown for 4 days on PDA. On the basis of symptoms, mycological characteristics and pathogenicity to the host plant, this fungus was identified as Sclerotium rolfsii Saccardo. This is the first report of the fruit rot of Melon caused by S. rolfsii in Korea.
