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The APT1-NACsa3-GGP1 Module Enhances Salt Tolerance and Regulates Ascorbic Acid Biosynthesis in Medicago.
Plant, Cell & Environment · · Journal Article
Wu, Liu + more
Abstract ↗AI summary
The abstract is read at the publisher; the summary is JClub's.
MtNACsa3 enhances salt tolerance in Medicago truncatula by moving from the plasma membrane to the nucleus under salt or oxidative stress and activating AsA synthesis.
- Why it matters: Salt tolerance in alfalfa is poorly understood, limiting molecular breeding design; clarifying the regulatory mechanism can enable targeted improvement.
- What they did: The study used MtNACsa3 mutant and overexpression lines, showing stress-triggered nuclear relocation mediated by de-S-acylation of MtAPT1, followed by MtGGP1 up-regulation to boost ascorbic acid production.
- The result: Exogenous MtNACsa3 transgenic alfalfa had higher AsA content and higher biomass than Zhongmu No.1 under salt stress, supporting the APT1–NACsa3–GGP1 module as a breeding resource.
The findingWhy it mattersWhat they didThe result
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