pp 1–16 | Cite as

A reversible light- and genotype-dependent acquired thermotolerance response protects the potato plant from damage due to excessive temperature

  • Almudena Trapero-Mozos
  • Laurence J. M. Ducreux
  • Craita E. Bita
  • Wayne Morris
  • Cosima Wiese
  • Jenny A. Morris
  • Christy Paterson
  • Peter E. Hedley
  • Robert D. Hancock
  • Mark Taylor
Original Article


Main conclusion

A powerful acquired thermotolerance response in potato was demonstrated and characterised in detail, showing the time course required for tolerance, the reversibility of the process and requirement for light.

Potato is particularly vulnerable to increased temperature, considered to be the most important uncontrollable factor affecting growth and yield of this globally significant crop. Here, we describe an acquired thermotolerance response in potato, whereby treatment at a mildly elevated temperature primes the plant for more severe heat stress. We define the time course for acquiring thermotolerance and demonstrate that light is essential for the process. In all four commercial tetraploid cultivars that were tested, acquisition of thermotolerance by priming was required for tolerance at elevated temperature. Accessions from several wild-type species and diploid genotypes did not require priming for heat tolerance under the test conditions employed, suggesting that useful variation for this trait exists. Physiological, transcriptomic and metabolomic approaches were employed to elucidate potential mechanisms that underpin the acquisition of heat tolerance. This analysis indicated a role for cell wall modification, auxin and ethylene signalling, and chromatin remodelling in acclimatory priming resulting in reduced metabolic perturbation and delayed stress responses in acclimated plants following transfer to 40 °C.


Acquired thermotolerance Electrolyte leakage Heat tolerance Potato Redox couples Yield 



Heat shock protein


Reactive oxygen species



This work was funded by the BBSRC Grant (BB/M004899/1) as part of the ERA-CAPS project HotSol, a Marie Skłodowska-Curie Individual Fellowship (Project number 702121 (ACQUIRE) to ECB) (H2020 Excellent Science) and the Scottish Government Rural and Environment Science and Analytical Services Division as part of the Strategic Research Programme 2016–2021.

Supplementary material

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Almudena Trapero-Mozos
    • 1
  • Laurence J. M. Ducreux
    • 2
  • Craita E. Bita
    • 2
  • Wayne Morris
    • 2
  • Cosima Wiese
    • 3
  • Jenny A. Morris
    • 2
  • Christy Paterson
    • 2
  • Peter E. Hedley
    • 2
  • Robert D. Hancock
    • 2
  • Mark Taylor
    • 2
  1. 1.School of Biology, Biomolecular Sciences BuildingUniversity of St AndrewsFifeUK
  2. 2.Cell and Molecular SciencesThe James Hutton InstituteDundeeUK
  3. 3.College of Arts and SciencesMisericordia UniversityDallasUSA

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