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Effect of heat-shock pre-treatment on tomato plants infected by powdery mildew fungus

Author

Listed:
  • Vladimíra Nožková

    (Department of Biophysics, Faculty of Science, Palacký University, Olomouc, Czech Republic)

  • Barbora Mieslerová

    (Department of Botany, Faculty of Science, Palacký University, Olomouc, Czech Republic)

  • Lenka Luhová

    (Department of Biochemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic)

  • Jana Piterková

    (Department of Biochemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic)

  • Ondřej Novák

    (Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research
    Institute of Experimental Botany CAS, Olomouc, Czech Republic)

  • Martina Špundová

    (Department of Biophysics, Faculty of Science, Palacký University, Olomouc, Czech Republic)

  • Aleš Lebeda

    (Department of Botany, Faculty of Science, Palacký University, Olomouc, Czech Republic)

Abstract

The effect of plant heat-shock (HS) pre-treatment (40.5°C, 2 h) on Pseudoidium neolycopersici development in the susceptible and moderately resistant Solanum spp. genotypes was studied together with biochemical responses (endogenous concentrations of salicylic (SA), jasmonic (JA), abscisic acid (ABA), and peroxidase (POX) activity). In HS pre-treated S. lycopersicum, an acceleration of pathogen, chlorosis and necrosis development, strong SA, JA accumulation, and increased POX activity were detected. In S. chmielewskii, HS pre-treatment caused a slight suppression of pathogen development, increase in JA, ABA concentrations, and POX activity. HS accelerated and strengthened the development of symptoms and biochemical responses to the infection in the susceptible genotype in contrast to moderately resistant genotype with a robust defence response to an infection per se.

Suggested Citation

  • Vladimíra Nožková & Barbora Mieslerová & Lenka Luhová & Jana Piterková & Ondřej Novák & Martina Špundová & Aleš Lebeda, 2019. "Effect of heat-shock pre-treatment on tomato plants infected by powdery mildew fungus," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 55(1), pages 31-42.
    • Handle: RePEc:caa:jnlpps:v:55:y:2019:i:1:id:24-2018-pps
    DOI: 10.17221/24/2018-PPS
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