Potato Research

, Volume 35, Issue 3, pp 321–328 | Cite as

Effects of heat tolerance on expression of resistance toPresudomonas solanacearum E. F. Smith in potato

  • Pham X. Tung
  • John G. Th. Hermsen
  • Peter Vander Zaag
  • Peter Schmiediche


Twelve potato clones with different genetic background for resistance to bacterial wilt and adaptation were tested for resistance to a race 1 and a race 3 isolate of the pathogen at three locations in the Philippines representing different ranges of ambient temperature. The results showed that the genes for heat tolerance are crucial for resistance. Stability analysis indicated that clones with both resistance and heat tolerance genes displayed higher and more stable resistance to the race 1 isolate than those clones having only resistance genes. The latter group tended to have higher values of both regression of disease index on environmental index and deviation from the regression in the stability analysis. Host — pathogen interaction effects were found to be statistically significant but small compared to main effects of isolates and clones. The involvement of genes with different effects on wilt resistance is discussed. Introduction

Additional keywords

adaptation host-pathogen interaction Solanum spp. stability parameters 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Ciampi, L. & L. Sequeira, 1980. Influence of temperature on virulence of race 3 strains ofPseudomonas solanacearum.American Potato Journal 57: 307–317.Google Scholar
  2. Eberhart, S. A. & W. L. Russell, 1966. Stability parameters for comparing varieties.Crop Science 6: 36–40.Google Scholar
  3. French, E. R., 1972. Progress and problems in selecting resistance to bacterial wilt. Prospects for the Potato in the Developing World. In: E. R. French (Ed.), International Symposium on Key Problems and Potentials for Greater Use of the Potato in the Developing World. CIP, Lima, Peru, 1972, p. 212–214.Google Scholar
  4. French, E. R. & L. De Lindo, 1982. Resistance toPseudomonas solanacearum in potato: Strain specificity and temperature sensitivity.Phytopathology 72: 1408–1412.Google Scholar
  5. Kelman, A., 1954. The relationship of pathogenicity ofPseudomonas solanacearum to colony appearance in tetrazolium medium.Phytopathology 44: 693–695.Google Scholar
  6. Parlevliet, J. E. & J. C. Zadoks, 1977. The integrated concept of disease resistance: a new view including horizontal and vertical resistance.Euphytica 26: 5–21.Google Scholar
  7. Rowe, P. R., L. Sequeira & L. C. Gonzales, 1972. Additional genes for resistance toPseudomonas solanacearum inSolanum phureja.Phytopathology 62: 1093–1094.Google Scholar
  8. Schmiediche, P., 1985. Breeding bacterial wilt (Pseudomonas solanacearum) resistant germplasm. Report of Planning Conference on Present and Future Strategies for Potato Breeding and Improvement, CIP, Lima, Peru, 1983, p. 45–55.Google Scholar
  9. Schmiediche, P. & C. Martin, 1983. Widening of the genetic base of the potato for resistance to bacterial wilt (Pseudomonas solanacearum). Proceedings of International Congress on Research for the Potato in the Year 2000. CIP, Lima, Peru, 1982, p. 172–173.Google Scholar
  10. Sequeira, L., 1979. Development of resistance to bacterial wilt derived fromSolanum phureja. Report of a Planning Conference on Developments in Control of Potato Bacterial Diseases. CIP, Lima, Peru, 1979, p. 55–62.Google Scholar
  11. Sequeira, L. & P. R. Rowe, 1969. Selection and utilization ofSolanum phureja clones with high resistance to different strains ofPseudomonas solanacearum.American Potato Journal 146: 451–462.Google Scholar
  12. Thurston, H. D. & T. C. Lazono, 1968. Resistance to bacterial wilt of potato in Colombian clones ofSolanum phureja.American Potato Journal 45: 51–65.Google Scholar
  13. Tung, P. X., E. T. Rasco Jr, P. Vander Zaag & P. Schmiediche, 1990a. Resistance toPseudomonas solanacearum in the potato: I. Effects of sources of resistance and adaptation.Euphytica 45: 203–210.Google Scholar
  14. Tung, P. X., E. T. Rasco, Jr, P. Vander Zaag & P. Schmiediche, 1990b. Resistance toPseudomonas solanacearum in the potato: II. Aspects of host-pathogen-environment interaction.Euphytica 45: 211–215.Google Scholar

Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Pham X. Tung
    • 1
  • John G. Th. Hermsen
    • 2
  • Peter Vander Zaag
    • 3
  • Peter Schmiediche
    • 4
  1. 1.Potato Research StationDalatVietnam
  2. 2.Department of Plant BreedingWageningen Agricultural UniversityThe Netherlands
  3. 3.International Potato Center (CIP)ManilaThe Philippines
  4. 4.CIPLimaPeru

Personalised recommendations