Low temperature induction of hormonal sensitivity in genotypically gibberellic Acid-insensitive aleurone tissue.
An exposure of genetically gibberellic acid-insensitive isolated wheat aleurone tissue/deembryonated seeds to low temperature for 20 hours prior to addition of exogenous gibberellic acid results in a significant increase in sensitivity to gibberellic acid. The results may reflect a low temperature-induced increase in hormone receptor sites and could have important implications for elucidating the nature of the primary site of hormone action.
Singh
S P
SP
Department of Plant Physiology, Waite Agricultural Research Institute, University of Adelaide, Glen Osmond, S.A. 5064, Australia.
Paleg
L G
LG