, Volume 194, Issue 2, pp 155–159 | Cite as

Jasmonic acid spraying does not induce tuberisation in short-day-requiring potato species kept in non-inducing conditions

  • Stephen D. Jackson
  • Lothar Willmitzer


The potato speciesSolanum andigena (Juz. and Buk.) andSolanum demissum (Lindl.) that both require short days for tuberisation were kept in either long days (16 h light), or short days (8 h light) with a 30-min night break mid-way through the dark period. Tuberisation of these species was inhibited under both conditions. Repeated spraying of these plants with up to 100 μM jasmonic acid did not induce them to tuberise even though jasmonic acid was shown to be taken up and transported within the plant. This result argues against jasmonic acid itself being the transported tuber-inducing signal, although it does not exclude a role for jasmonic acid later in tuber formation and development once induction has taken place.

Key words

Jasmonic acid Photoperiod Solanum Tuberisation 





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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • Stephen D. Jackson
    • 1
  • Lothar Willmitzer
    • 1
  1. 1.Institut für Oenbiologische Forschung GmbHBerlinGermany

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