biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 28:9, 1986 | DOI: 10.1007/BF02885311

Biochemistry of a plant dormancy process: Prospects for chemical regulation

D. M. A. Mousdale1, Sandra A. Mousdale1, M. J. Hennerty1
1 Department of Horticulture, University College, Dublin, Ireland

The mobilization of protein nitrogen reserves in apple shoot bark is subject to abscisic acid (ABA)-mediated regulation. At the biochemical level proteolytic activities in the shoot bark are suppressed in the autumn. As endogenous ABA levels decline during the autumn and winter tissue protease levels increase in parallel with the rate of inducible breakdown of reserve protein; metabolic demandper se plays no significant role. This process is used as a model system to explore the possibilities for chemical regulation ("bioregulation") of ABA-determined dormancy phenomena by: manipulation of tissue ABA concentrations, substitution of synthetic growth regulators and direct interference at the site of action.

Published: January 1, 1986  Show citation

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Mousdale, D.M.A., Mousdale, S.A., & Hennerty, M.J. (1986). Biochemistry of a plant dormancy process: Prospects for chemical regulation. Biologia plantarum, 28(1), 9. doi: 10.1007/BF02885311
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