The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
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Verticillium Wilt of Potato Caused by Verticillium albo-atrum in Daegwallyong Area in Korea

  • Kim, Jong-Tae (Highland Crop Research Division, National Highland Agricultural Experiment Station, RDA) ;
  • Ryu, Kyoung-Yul (Highland Crop Research Division, National Highland Agricultural Experiment Station, RDA) ;
  • Kim, Jeom-Soon (Highland Crop Research Division, National Highland Agricultural Experiment Station, RDA) ;
  • Hahm, Young-Il (Highland Crop Research Division, National Highland Agricultural Experiment Station, RDA) ;
  • Yu, Seung-Hun (Department of Agricultural Biology, Chungnam National University)
  • Published : 2003.06.01
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Abstract

Verticillium wilt was first observed in 2001 on potatoes (Solanum tuberosum) cv. Superior at Daegwallyong area, one of the major seed potato producing areas in Korea. The wilted potato plants showed typical symptoms including gradual yellowing and interveinal necrosis. There was discoloration in the vascular tissues of the infected stems which turned light brown. Fungal isolates from discolored vascular tissues were whitish to creamy with folding on potato dextrose agar medium, where they used to produce resting dark mycelia but no micro-sclerotia. Conidiophores were septate with side branches, swelled at the base, and arranged in a whorl. Conidia were 2.5-11.2$\times$2.0-4.5 $\mu\textrm{m}$ um in size and were borne in small clusters at the tips of phialides. Optimal temperature range for mycelial growth was $25-30^{\circ}C$. Based on these cultural and morphological characteristics, the fungus was identified as Verticillium albo-atrum Reink & Berth. Pathogenicity tests by root dipping method revealed that the fungus caused the same symptoms as observed in naturally infected potato plants. This is the first report of Verticillium wilt on potato caused by Verticillium albo-atrum in Korea.

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References

  1. Bender, C. G. and Shoemaker, P. B. 1984. Prevalence of Verticillium wilt of tomato and virulence of Verticillium dahliae race 1 and race 2 isolates in Western North Carolina. Plant Disease 68:305-309 https://doi.org/10.1094/PD-69-305
  2. Botseas, D. D. and Rowe, R. C. 1994. Development of potato early dying in response to infection by two pathotypes of Verticillium dahliae and co-infection by Pratylenchus penetrans. Phytopathology 84:275-282 https://doi.org/10.1094/Phyto-84-275
  3. Campbeel, W. P. and Griffiths, D. A. 1973. Pathogenicity of Verticillium dahliae to potato in Victoria, Australia. Plant Dis. Rep. 57:735-738
  4. Folsom, D., Simpson, G. W. and Bonde, R. 1955. Maine potato diseases, insects, and injuries. Maine, Agric. Exp. Stn., Bull. 469
  5. Hawksworth, D. L. and Talboys, P. W. 1970. C.M.I. descriptions of pathogenic fungi and bacteria. No. 255. Verticillium alboatrum, No. 256. V. dahliae. CAB, Kew, England
  6. Jimenezdiaz, R. M. and Millar, R. L. 1988. Sporulation on infected tissues, and presence of airborne Verticillium alboatrum in alfalfa fields in New York. Plant Pathology 37:64-70 https://doi.org/10.1111/j.1365-3059.1988.tb02196.x
  7. John, M. C. and Heale, J. B. 1985. Pathogenicity and colonization studies on wild-type and auxotrophic isolates of Verticilium albo-atrum from hop. Plant Pathol. 34:119-128 https://doi.org/10.1111/j.1365-3059.1985.tb02768.x
  8. Keinath, A. P. and Millar, R. L. 1986. Persistence of an alfalfa strain of Verticillium albo-atrum in soil. Phytopathology 76:576-581 https://doi.org/10.1094/Phyto-76-576
  9. Keyworth, W. G. 1953. Resistance of hop stems to invasion by Verticillium albo-atrum. Nature (London) 171:656-657
  10. Kim, J. T., Park, I. H., Lee, H. B., Hahm, Y. I. and Yu, S. H. 2001. Identification of Verticillium dahliae and V. albo-atrum causing wilt of tomato in Korea Korean J. Plant Pathol. 17:222-226
  11. Ludbrook, W. L. 1933. Pathogenicity and environmental studies on Verticillium hadromycosis. Phytopathology 23:17-54
  12. Sewell, G. W. F. and Wilson, J. F. 1984. The nature and distribution of Verticillium albo-atrum strains highly pathogenic to hop. Plant Pathol. 33:39-52 https://doi.org/10.1111/j.1365-3059.1984.tb00585.x
  13. Smith, H. C. 1965. The morphology of Verticillium albo-atrum, V. dahliae, and V. tricorpus. New Zealand J. Agric. Res. 8:450-478 https://doi.org/10.1080/00288233.1965.10419889
  14. Tjamos, E. C. 1981. Virulence of Verticillium dahliae and V. albo-atrum isolates in tomato seedlings in relation to their host of origin and the applied cropping system. Phytopathology 71:98-100 https://doi.org/10.1094/Phyto-71-98