Planta 235: 137-151 (2012)

Dose- and tissue-specific interaction of monoterpenes with the gibberellin-mediated release of potato tuber bud dormancy, sprout growth and induction of α-amylases and β-amylases

Sonja Rentzsch • Dagmara Podzimska • Antje Voegele • Madeleine Imbeck • Kerstin Müller§ • Ada Linkies* • Gerhard Leubner-Metzger*
*shared corresponding authors
University of Freiburg, Faculty of Biology, Institute for Biology II, Botany / Plant Physiology, Schänzlestr. 1, D-79104 Freiburg, Germany, Web: 'The Seed Biology Place'
§Department of Biological Sciences, Simon Fraser University, 9 8888, University Drive, Burnaby BC, V5A 1S6, Canada

Received 11 June 2011; Accepted 5 August 2011; Published online 20 August 2011
DOI: 10.107/s00425-011-1501-1

bud dormancy release

Fig. 2   The effects of S-(+)-carvone (CAR), peppermint oil (PMO) and CIPC on the kinetics of bud dormancy release (a) and sprout growth (b) of gibberellin-treated potato tuber bud discs.

Excised tuber discs containing dormant buds (‘eyes’) from Solanum tuberosum cv. Agria and shaken for 2h in a solution with 50 µM gibberellin A3 (GA) and CAR, PMO or CIPC added in the concentrations indicated in the legend and the methods. Bud dormancy release was scored as visible initial sprout growth of ≥ 2 mm. Sprout growth after dormancy release was determined by daily measurements of the length. Mean values ± SE of 10-20 tuber discs are presented.


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