Abscisic Acid Inhibition of Radicle Emergence But Not Seedling Growth Is Suppressed by Sugars
Open Access
- 1 April 2000
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 122 (4) , 1179-1186
- https://doi.org/10.1104/pp.122.4.1179
Abstract
Low concentrations of sugars altered the sensitivity of seed germination to inhibition by exogenous abscisic acid (ABA). Germination of wild-type and ABA-insensitive (abi) Arabidopsis seeds was assayed on media containing ABA and a variety of sugars and sugar alcohols. The inhibitory effects of ABA were strongly repressed in the presence of 15 to 90 mm glucose (Glc), sucrose, or fructose, but not by comparable concentrations of sorbitol or mannitol. Several features of the response to Glc are inconsistent with a purely nutritional effect: The optimal sugar concentration is low and differs between the wild type and the abi mutants. Furthermore, Glc suppression of ABA inhibition is light dependent and limited to the process of radicle emergence.Keywords
This publication has 39 references indexed in Scilit:
- Plant sugar sensing and signaling – a complex realityTrends in Plant Science, 1999
- Mannose Inhibits Arabidopsis Germination via a Hexokinase-Mediated Step1Plant Physiology, 1999
- Phytochrome Regulates Gibberellin Biosynthesis during Germination of Photoblastic Lettuce SeedsPlant Physiology, 1998
- Sugar sensing in higher plantsTrends in Plant Science, 1997
- Gibberellin Action in Germinated Cereal GrainsPublished by Springer Nature ,1995
- Regulation of gene expression programs during Arabidopsis seed development: roles of the ABI3 locus and of endogenous abscisic acid.Plant Cell, 1994
- Analysis of phytochrome‐ and ABA‐deficient mutants suggests that ABA degradation is controlled by light in Nicotiana plumbaginifoliaThe Plant Journal, 1994
- Molecular Cloning and Expression of cor (Cold-Regulated) Genes in Arabidopsis thalianaPlant Physiology, 1990
- Role of ABA in Maturation of Rapeseed EmbryosPlant Physiology, 1985
- The isolation and characterization of abscisic acid‐insensitive mutants of Arabidopsis thalianaPhysiologia Plantarum, 1984