Occurrence and Biovar Classification of Bacterial Wilt Caused by Ralstonia solanacearum in Eggplant (Solanum melongena)

가지의 Ralstonia solanacearum에 의한 풋마름병 발생과 생리형의 분화

  • Published : 2008.04.01


Batcterial wilt caused by Ralstonia solanacearum is one of important and widespread diseases worldwide as well as in Korea. Bacterial wilt disease caused by R. solanacearum has been reported mainly in solanaceous crops including eggplant (Solanum melongena), tomato (Solanum lycopersicum), potato (S. tuberosum), and pepper (Capsicum annuum). A total of 48 strains of R. solanacearum from eggplant were collected during 2005 and 2006. They were confirmed as R. solanacearum by PCR amplification with primer pair flipcF/flipcR resulting in production of 470-bp DNA fragment. The 15 isolates exhibited pathogenicity on eggplant and tomato, but less virulent on pepper than other species. The biovar of collected isolates, which have been reported of five types worldwide, were classified as biovars 3 and 4 by physiological test. Biovar 4 was the dormant type without pathogenicity on eggplant rootstock, whereas biovar 3 had pathogenicity on eggplant rootstocks that is resistant to R. solanacearum, indicating necessity of breeding new rootstock with resistance to R. solanacearum biovar 3


Biovar;Eggplant;Ralstonia solanacearum


  1. Park, E-J., Lee, S-D., Chung, E-J., Lee, M.-H. and Um, H-Y. 2007. Microtom-A model plant system to study bacterial wilt by Ralstonia solanacearum. Plant Pathol. J. 23: 239-244
  2. Tans-Kersten, J., Huayu, H. and Caitilyn, A. 2001. Ralstonia solanacearum needs motility for invasive virulence on tomato. J. Bacteriol. 183: 3597-3605
  3. Villa, J., Tsuchiya, K., Hortia, M., Opina, N. and Hyakumachi, M. 2003. DNA analysis of Ralstonia solanacearum and related bacteria based on 282-bp PCR-amplified fragment. Plant Dis. 87: 1377-1343
  4. Jeong, Y., Kim, J., Kang, Y., Lee, S. and Hwang, I. 2007. Genetic diversity and distribution of Korea isolates of Ralstonia solanacearum. Plant Dis. 91: 1277-1287
  5. Kelman, A. 1954. The Relationship of pathogenicity in Pseudomonas solanacearum to colony appearance on a tetrazolium medium. Phytopathology 44: 693-695
  6. Hayward, A. C. 1964. Characteristics of Pseudomonas solanacearum. J. Appl. Bacteriol. 27: 265-277
  7. 서상태, 박종환, 한경숙, 정승룡, 이승돈. 2007. 우리나라에 분포하는 고추와 토마토 풋마름병균(Ralstonia solanacearum) 계통들의 유전적 다양성. 식물병연구 13: 24-29
  8. Mitsuo, H. and Kenichi, T. 1999. Phenotypic characteristics and cluster analysis of Japanese and reference strains of Ralstonia solanacearum. Ann. Phytopathol. Soc. Jpn. 65: 604-611
  9. Hayward, A. C. 1991. Biology and epidemiology of bacterial wilt caused by Pseudomonas solanacearum. Annu. Rev. Phytopathol. 29: 65-87
  10. Kazutaka, Y., Yasuaki, M., Youich, K. and Shinji, K. 2000. Distribution of a baterial group of Ralstonia solanacearum isolated from eggplants in Kochi prefecture and its control by using resistant rootstock. Bull. Kochi. Agri. Res. Cent. 9: 9-16
  11. Schonfeld, J., Heuer, H., Van Elsas, J. D. and Smalla, K. 2003. Specific and sensitive detection of Ralstonia solanacearum in soil on the basis of PCR amplification of fliC fragments. Appl.Envrion. Mcirobiol. 69: 7248-7256

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