Browse > Article
http://dx.doi.org/10.5423/RPD.2012.18.1.054

Sclerotium Rot of Sponge Gourd Caused by Sclerotium rolfsii  

Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services)
Kim, Jin-Woo (Institute of Agriculture and Life Sciences, Gyeongsang National University)
Lee, Yong-Hwan (Rural Development Administration)
Shim, Hong-Sik (National Academy of Agricultural Science, RDA)
Publication Information
Research in Plant Disease / v.18, no.1, 2012 , pp. 54-56 More about this Journal
Abstract
Sclerotium rot of sponge gourd occurred at the experimental field of Gyeongsangnam-do Agricultural Research and Extension Services in August 2010. The infected fruits showed water-soaked and rot symptoms. White mycelial mats spread over lesions, and then sclerotia were formed on fruit and near soil line. The sclerotia were globoid in shape, 1-3 mm in size and white to brown in color. The optimum temperature for mycelial growth and sclerotia formation on PDA was $30^{\circ}C$ and the hyphal width was 4-8 ${\mu}m$. The typical clamp connections were observed in the hyphae of the fungus grown on PDA. On the basis of mycological characteristics, ITS rDNA sequence analysis, and pathogenicity to host plants, this fungus was identified as Sclerotium rolfsii Saccardo. This is the first report of sclerotium rot on sponge gourd caused by S. rolfsii in Korea.
Keywords
Sclerotium rolfsii; Sclerotium rot; Sponge gourd;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Kwon, J. H., Kang, D. W., Song, W. D. and Choi, O. H. 2011. Occurrence of sclerotium rot in Allium tuberosum caused by Sclerotium rolfsii in Korea. Mycobiology 39: 230-232.   DOI
2 Kwon, J. H., Kang, D. W., Lee, S. T., Choi, O. H. and Shen, S. S. 2011. Stem rot of Stachys sieboldii caused by Sclerotium rolfsii in Korea. Res. Plant Dis. 17: 399-401. (In Korean)   DOI
3 Lee, T. B. 2003. Coloured flora of Korea (1). Hyangmoonsa. 914 pp. Seoul, Korea. (In Korean)
4 Mordue, J. E. M. 1974. Sclerotium rolfsii. CMI descriptions of pathogenic fungi and bacteria. No. 410. Commonwealth Mycological Institute, Kew, Surrey, England.
5 The Korean Society of Plant Pathology. 2009. List of plant diseases in Korea. 5th ed., Suwon, Korea. 853 pp. (In Korean)
6 White, T. J., Bruns, T. Lee, S. and Taylor, J. W. 1990. Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: PCR Protocols: A guide to methods and applications, ed. by M. A. Innis, D. H. Gelfand, J. J. Sninsky, and T. J. White, pp. 315-322. Academic Press Inc., New York, USA.
7 Kwon, J. H., Kim, H. D., Choi, O. H., Kwak, Y. S., Lee, Y. H. and Shim, H. S. 2011. Sclerotium rot of onion caused by Sclerotium rolfsii. Res. Plant Dis. 17: 222-224. (In Korean)   DOI