Proline accumulation in flooded and wilted sunflower and the effects of benzyladenine and abscisic acid
- 1 December 1975
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 53 (23) , 2893-2896
- https://doi.org/10.1139/b75-317
Abstract
Sunflower accumulates proline in its aerial and subterranean parts when subjected to water stress. Decreases in the proline pool on recovery are slow. Plants that wilted in darkness do not accumulate proline, and plants that are subjected to a 16-h photoperiod and are sprayed with benzyladenine also show reduced accumulation. Flooded plants show increases in their endogenous free-proline pool, which can be reduced by aeration of the roots or by foliar application of benzyladenine. Abscisic acid does not induce free-proline accumulation in unstressed plants.Keywords
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