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葡萄SNRK2.7积极调节转基因Arabidopsis的干旱耐受性

Guanquecailang Lan¹, Weifeng Ma¹, Guojie Nai¹

¹College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.

International journal of molecular sciences

|April 27, 2024

概括

葡萄VvSnRK2.7基因通过增加抗氧化活性和糖含量,增强了Arabidopsis的抗干旱性. 这种糖不发酵激酶2 (SnRK2) 基因促进了水应激下植物的生存.

科学领域:

植物分子生物学植物分子生物学
压力生理学压力生理学

背景情况:

葡萄藤 (Vitis vinifera) 对环境压力的反应对农业至关重要.
糖分非发酵激酶2 (SnRK2) 基因在植物压力信号通路中起着至关重要的作用.

研究的目的:

为了克隆和表征葡萄VvSnRK2.7基因.
研究VvSnRK2.7在干旱应激反应中的功能.
为了识别VvSnRK2.7相互作用蛋白.

主要方法:

转录组数据查和基因克隆.
酵母两杂交 (Y2H) 测试蛋白质相互作用.
在Arabidopsis thaliana.中VvSnRK2.7的异质表达.
在干旱压力下对转基因Arabidopsis进行生理和生化分析.

主要成果:

VvSnRK2.7蛋白位在细胞膜和细胞核上.
VvSnRK2.7与VvbZIP蛋白进行了相互作用.
转基因阿拉比多普西斯菌株在干旱期间表现出增加的VvSnRK2.7表达,更高的抗氧化酶活性和较高的糖含量.
转基因线路的相对导电性和MDA含量降低,表明细胞损伤较小.

结论:

VvSnRK2.7增强了阿拉比多普西斯的干旱耐受性.
VvSnRK2.7可能会激活抗氧化系统并维持细胞代谢.
该基因促进糖的积累,有助于改善干旱压力下的植物抵抗力.

关键词:

干旱造成的压力是干旱.功能验证的功能验证葡萄糖的新陈代谢.葡萄是葡萄,葡萄是葡萄.酵母两个混合测试试验.

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