由MdCBF3-MdGAD1介导的γ-氨基黄油酸减轻了果的低温损伤
Tanfang Liu1, Yuxing Li1, Yanjiao Shi1
1State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China.
International journal of biological macromolecules
|September 5, 2024
概括
低温对果作物造成伤害. 玛氨基黄油酸 (GABA) 通过激活MdCBF3-MdGAD1通路,增强果的抗寒能力,从而促进内部GABA的产生.
科学领域:
- 植物生理学 植物生理学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 低温对果产量和水果质量产生负面影响.
- 众所周知,胺黄油酸 (GABA) 可以提高植物的抗压能力.
- 果中GABA介导的抗寒性分子机制尚未完全理解.
研究的目的:
- 研究外源GABA在提高果耐寒性方面的作用.
- 阐明果中GABA诱导的抗寒性背后的分子机制.
主要方法:
- 在果苗木和果实上,GABA的外源性应用.
- 果GABA合成基因 (MdGAD1) 在番茄和果中过度表达.
- 酵母一种混合和光酶测试以确定基因相互作用.
主要成果:
- 外源性GABA治疗改善了果幼苗和水果的抗寒能力.
- 过度表达MdGAD1增强了番茄和果的寒冷耐受性.
- MdCBF3被确定为一种转录因子,它与MdGAD1促进体结合,激活其表达并促进GABA合成.
结论:
- 外源的GABA增强了果的抗寒能力.
- 调节模块MdCBF3-MdGAD1对于增加内源GABA合成和改善果的耐寒性至关重要.
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