α-Amylase Synthesis in Wheat Kernels as Influenced by the Seed Coat
Open Access
- 1 January 1981
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 67 (1) , 89-91
- https://doi.org/10.1104/pp.67.1.89
Abstract
The effect of seed coat removal on the synthesis of α-amylase isoenzymes in wheat was investigated. The immature wheat endosperm-aleurone (seed coat and embryo detached) produced considerably less α-amylase activity than immature whole or de-embryonated wheat kernels, when incubated under identical conditions of 18.5 C and 99% humidity, in the presence or absence of gibberellic acid (GA3). The incubated endosperm-aleurone also exhibited unique α-amylase isoenzyme composition when compared to the isoenzyme compositions of incubated whole and de-embryonated immature and mature wheat kernels both in the presence or absence of GA3. Subsequent studies indicated that the seed coat may contain factor(s) required for normal α-amylase isoenzyme synthesis.This publication has 4 references indexed in Scilit:
- IMMUNOCHEMICAL CHARACTERIZATION OF ALPHA-AMYLASES IN WHEAT SEEDS AT DIFFERENT ONTOGENICAL STEPS1978
- Abscisic acid in developing wheat grains and its relationship to grain growth and maturationPlanta, 1976
- Embryoless Wheat GrainPlant Physiology, 1973
- A test for de novo synthesis of enzymes: density labeling with H2O18 of barley alpha-amylase induced by gibberellic acid.Proceedings of the National Academy of Sciences, 1967