TaGPAT6 enhances salt tolerance in wheat by synthesizing cutin and suberin monomers to form a diffusion barrier
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Le résumé fourni par la source
One mechanism plants use to tolerate high salinity is the deposition of cutin and suberin to form apoplastic barriers that limit the influx of ions. However, the mechanism underlying barrier formation under salt stress is unclear. Here, we characterized the glycerol-3-phosphate acyltransferase (GPAT) family gene TaGPAT6, encoding a protein involved in cutin and suberin biosynthesis for apoplastic barrier formation in wheat (Triticum aestivum). TaGPAT6 has both acyltransferase and phosphatase activities, which are responsible for the synthesis of sn-2-monoacylglycerol (sn-2 MAG), the precursor of cutin and suberin. Overexpressing TaGPAT6 promoted the deposition of cutin and suberin in the seed coat and the outside layers of root tip cells and enhanced salt tolerance by reducing sodium ion accumulation within cells. By contrast, TaGPAT6 knockout mutants showed increased sensitivity to salt stress due to reduced cutin and suberin deposition and enhanced sodium ion accumulation. Yeast-one-hybrid and electrophoretic mobility shift assays identified TaABI5 as the upstream regulator of TaGPAT6. TaABI5 knockout mutants showed suppressed expression of TaGPAT6 and decreased barrier formation in the seed coat. These results indicate that TaGPAT6 is involved in cutin and suberin biosynthesis and the resulting formation of an apoplastic barrier that enhances salt tolerance in wheat.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- TaGPAT6 enhances salt tolerance in wheat by synthesizing cutin and suberin monomers to form a diffusion barrier
- Date Crossref
- 27/11/2024
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Ministry of Education of the People's Republic of China pays non établi dans la noticeOrganisme public
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Shandong University Key Laboratory of Plant Development and Environmental Adaptation Biology pays non établi dans la noticeUniversité ou école supérieure
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State Key Laboratory of Microbial Technology pays non établi dans la noticeStructure de recherche
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School of Life Science pays non établi dans la noticeUniversité ou école supérieure
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Shandong Key Laboratory of Precision Molecular Crop Design and Breeding pays non établi dans la noticeStructure de recherche
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National Center of Technology Innovation for Comprehensive Utilization of Saline‐Alkali Land Dongying 257345 China National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land pays non établi dans la noticeOrganisation à but non lucratif
Ministry of Education of the People's Republic of China, Key Laboratory of Plant Development and Environmental Adaptation Biology — Shandong University et State Key Laboratory of Microbial Technology, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.