ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024
MdSINA2-MdNAC104 Module Regulates Apple Alkaline Resistance by Affecting γ-Aminobutyric Acid Synthesis and Transport.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- The MdERF1B-MdWRKY75-MdSOS3 Module Confers Salt Tolerance by Regulating Sodium-Potassium Homoeostasis in Apple.Plant, cell & environment · 2026Article
- Anthocyanin-Driven Dark Phenotypes in Stress Adaptation.Plants (Basel, Switzerland) · 2026Review
- Protein Post-Translational Modifications in Plant Abiotic Stress Responses.Plants (Basel, Switzerland) · 2025Review
- Identification of Key Regulators Mediating Gamma-Aminobutyric Acid (GABA) and Organic Acid Accumulation in Strawberry.Plants (Basel, Switzerland) · 2025Article
- Strigolactones enhance apple drought resistance via the MsABI5-MsSMXL1-MsNAC022 cascade.Horticulture research · 2025Article
- Phytochrome B-mediated light signalling enhances rice resistance to saline-alkaline and sheath blight by regulating multiple downstream transcription factors.Plant biotechnology journal · 2025Article
- MdSINA2-MdNAC104 Module Regulates Apple Alkaline Resistance by Affecting γ-Aminobutyric Acid Synthesis and Transport.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
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13 authors.
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Abstract
Soil alkalization is an adverse factor limiting plant growth and yield. As a signaling molecule and secondary metabolite, γ-aminobutyric acid (GABA) responds rapidly to alkaline stress and enhances the alkaline resistance of plants. However, the molecular mechanisms by which the GABA pathway adapts to alkaline stress remain unclear. In this study, a transcription factor, MdNAC104 is identified, from the transcriptome of the alkaline-stressed roots of apple, which effectively reduces GABA levels and negatively regulates alkaline resistance. Nevertheless, applying exogenous GABA compensates the negative regulatory mechanism of overexpressed MdNAC104 on alkaline resistance. Further research confirms that MdNAC104 repressed the GABA biosynthetic gene MdGAD1/3 and the GABA transporter gene MdALMT13 by binding to their promoters. Here, MdGAD1/3 actively regulates alkaline resistance by increasing GABA synthesis, while MdALMT13 promotes GABA accumulation and efflux in roots, resulting in an improved resistance to alkaline stress. This subsequent assays reveal that MdSINA2 interacts with MdNAC104 and positively regulates root GABA content and alkaline resistance by ubiquitinating and degrading MdNAC104 via the 26S proteasome pathway. Thus, the study reveals the regulation of alkaline resistance and GABA homeostasis via the MdSINA2-MdNAC104-MdGAD1/3/MdALMT13 module in apple. These findings provide novel insight into the molecular mechanisms of alkaline resistance in plants.
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