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

amylase activities

Fig. 3   The effects of gibberellin (GA), S-(+)-carvone (CAR), peppermint oil (PMO) and CIPC on the enzyme activities for α-amylase and β-amylase in specific tissues of tuber bud discs from Solanum tuberosum cv. Agria.

Tuber bud discs were treated for 2h as described in the methods without (CON) or with 50 µM gibberellin A3 (GA) and, as indicated 100 or 1000 µM CAR, 100 or 1000 µl/l PMO, or CIPC. The enzyme activities were quantified in sprout (unsprouted bud tissue for CON and GA+CIPC) (a) and base (b) tissues excised from bud discs after seven days of incubation (see methods). Mean values ± SE (N≥3).


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