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- Title
β-Aminobutyric acid increases drought tolerance and reorganizes solute content and water homeostasis in flax ( Linum usitatissimum).
- Authors
Quéro, Anthony; Fliniaux, Ophélie; Elboutachfaiti, Redouan; Petit, Emmanuel; Guillot, Xavier; Hawkins, Simon; Courtois, Josiane; Mesnard, François
- Abstract
β-Aminobutyric acid (BABA) is a non-protein amino acid that induces drought tolerance in plants. The mechanisms involved in this tolerance are still poorly understood. In the present study, metabolomic and ionomic profiling performed in flax ( Linum usitatissimum) leaves revealed that BABA induces a major reorganization in solute content. This reorganization resulted in increased accumulation of non-structural carbohydrates and proline and a decrease in inorganic solutes. This response has high similarities with that obtained when flax is exposed to an osmotic stress. BABA treatment also induced a decrease in osmotic potential and a change in water status of flax leaves. These modifications are accompanied by an improvement in drought tolerance.
- Subjects
AMINOBUTYRIC acid; DROUGHT tolerance; FLAX; WATER; HOMEOSTASIS
- Publication
Metabolomics, 2015, Vol 11, Issue 5, p1363
- ISSN
1573-3882
- Publication type
Article
- DOI
10.1007/s11306-015-0792-9