Browse > Article
http://dx.doi.org/10.5423/RPD.2005.11.2.146

Bacterial Blight of Sesame Caused by Xanthomonas campestris pv. sesami  

Lee Seung-Don (Plant Pathology Division, National Institute of Agricultural Science and Technology, Rural Development Administration)
Lee Jung-Hee (Plant Pathology Division, National Institute of Agricultural Science and Technology, Rural Development Administration)
Kim Yong-Ki (Plant Pathology Division, National Institute of Agricultural Science and Technology, Rural Development Administration)
Heu Sung-Gi (Plant Pathology Division, National Institute of Agricultural Science and Technology, Rural Development Administration)
Ra Dong-Soo (Plant Pathology Division, National Institute of Agricultural Science and Technology, Rural Development Administration)
Publication Information
Research in Plant Disease / v.11, no.2, 2005 , pp. 146-151 More about this Journal
Abstract
A new bacterial disease of sesame(Sesamum indicum) was observed on field-grown plants in Suwon, Hongchun and Yeonchun in 2000. Leaf symptoms initially appeared as water-soaked spots that gradually enlarged, became necrotic and were often bordered by a small zone of lemon yellow tissue. In the case of severe infection, dead leaves were defoliated. Isolations made from diseased leaves on yeast extract dextrose calcium carbonate agar yielded nearly pure cultures of a yellow-pigmented bacterium typical of a xanthomonad. Two bacterial strains were purified and used for farther tests. Pathogenicity of strains was confirmed on 3-week-old sesame plants sprayed with bacterial suspensions containing $10^{8}cfu/ml$ of phosphate buffered saline. The Biolog and fatty acid analyses of the two strains(SL3451 and SL3476) 1mm sesame leaf blight showed that they could be identified as ft campestris pv. sesami because of their high similarity to the tester strain(X. campestris pv. sesami LMG865) with a match probability of $100\%$. The bacterium grew well between 18 and 36$^{\circ}C$, but optimum temperature was $27^{\circ}C$ on LB broth. This is the first report of bacterial blight of sesame in Korea. Symptoms of bacterial blight of sesame are difficult to differentiated with those of bacterial leaf spot caused by Pseudomonas syringae pv. sesami.
Keywords
Bacterial blight; Sesamum indicum; Xanthomonas campestris pv. snami;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Abdel-Rahim, A. M. and Adam, F. S. 1990. Some etiological characteristics of Xanthomonas campestris pv. sesami and disease reaction of different sesame cultivars. J. Phytopathol. 129: 165-169   DOI
2 Hildebrand, D. C., Hendson, M. and Schroth, M. N. 1993. Usefulness of nutritional screening for the identification of Xanthomonas campestris DNA homology groups and pathovars. J. Appl. Bacteriol. 75: 447-455   DOI   ScienceOn
3 Miller, L. T. 1982. Single derivatization method for routine analysis of bacterial whole-cell fatty acid methyl esters, including hydroxy acids. J. Clin. Microbiol. 16: 584-586
4 한국식물병리학회. 2004. 한국식물병목록, 제4판. 779 pp
5 Vauterin, L., Yang, P. and Swings, J. 1996. Utilization of fatty acid methyl esters for the differentiation of new Xanthomonas species. Int. J. Syst. Bacteriol. 46: 298-304   DOI
6 Phookan, A. K. and Hazarika, R. 1993. Damping-off of sesmae caused by Xanthomonas campestris pv. sesami in Assam. Indian Phytopathol. 46: 249-250
7 Schaad, N. W., Jones, J. B. and Chun, W. 2001. Plant Pathogenic Bacteria. 3rd ed. APS Press, Minnesota, USA. 373 pp
8 강철환. 2004. 참깨의 특성. 농촌진흥청 homepage(http://www.rda.go.kr), 농업과학기술대전