DORMANCY STUDIES IN SEED OF AVENA FATUA: 5. ON THE RESPONSE OF ALEURONE CELLS TO GIBBERELLIC ACID
- 1 January 1966
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 44 (1) , 19-32
- https://doi.org/10.1139/b66-003
Abstract
The synthesis of α-amylase by excised aleurone tissue can be induced by supplying either gibberellic acid (GA) or a mixture of amino acids and sucrose. Aleurone cells form RNA within 4 hours after the imbibition of water or a solution of GA. Synthesis of RNA is essential for the subsequent production of the enzyme. The primary action of GA leading to production of the enzyme begins at about the same time as the first synthesis of RNA. Loss of dormancy during after-ripening involves changes in the response of aleurone cells to gibberellin. Aleurone cells of a non-dormant domestic oat variety Torch exhibit a greater autonomy in the control of α-amylase synthesis than those of wild oats. The current hypothesis that GA acts by genetic derepression is discussed.This publication has 11 references indexed in Scilit:
- Studies on the “independence” of nucleolar ribonucleic acid synthesisBiochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects, 1964
- HORMONAL CONTROL OF ENZYME SYNTHESIS IN BARLEY ENDOSPERMProceedings of the National Academy of Sciences, 1964
- Physiological Effects of Gibberellic Acid. VII. Electron Microscopy of Barley Aleurone CellsPlant Physiology, 1964
- Gibberellic Acid Controlled Synthesis of α-Amylase in Barley EndospermPlant Physiology, 1964
- ORIGIN AND DISTRIBUTION OF α-AMYLASE IN MALTJournal of the Institute of Brewing, 1964
- BIOCHEMISTRY OF BARLEY GERMINATION ACTION OF GIBBERELLIC ACID ON BARLEY ENDOSPERMJournal of the Institute of Brewing, 1963
- The Biosynthesis of Ribonucleic Acid in Animal SystemsProgress in Nucleic Acid Research and Molecular Biology, 1963
- On the inhibition of RNA synthesis by actinomycinBiochemical and Biophysical Research Communications, 1962
- DORMANCY STUDIES IN SEED OF AVENA FATUA: 2. A GIBBERELLIN-SENSITIVE INHIBITORY MECHANISM IN THE EMBRYOCanadian Journal of Botany, 1961
- Enzymes of Starch Degradation and SynthesisPublished by Wiley ,1951