甘ScFTIP1的功能性表征揭示了它在阿拉比多普西斯花期中的作用
Jinlan Fang1, Zhe Chai2, Cuilin Huang3
1College of Agriculture, Guangxi University, Nanning, 530005, China; State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources & Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning, 530005, China.
Plant physiology and biochemistry : PPB
|April 16, 2024
概括
研究人员确定了参与花期调节的甘FT相互作用蛋白1 (ScFTIP1). ScFTIP1与花通路整合器相互作用,这表明了控制甘开花的机制.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 农业科学 农业科学
背景情况:
- 开花时间对植物繁殖和作物产量至关重要,影响了甘中的糖和生物质生产.
- 虽然花T (FT) 蛋白质是关键的花调节剂,但在甘中,FT出口和花控制的机制尚未完全理解.
研究的目的:
- 为了识别和描述参与FT介导的甘中花期调节的蛋白质.
- 阐明甘FT相互作用蛋白1 (ScFTIP1) 在开花途径中的功能.
主要方法:
- 识别和细胞下定位ScFTIP1,多重C2域和跨膜区域蛋白 (MCTPs) 家族中的成员.
- 使用Arabidopsis ftip1-1突变物评估ScFTIP1功能的补充试验.
- 在ScFTIP1和甘FT蛋白质 (ScFT1,ScFT3) 和阿拉比多普西斯FT (AtFT) 之间的体外和体内相互作用研究.
- 通过促进体结合试验分析ScNAC23对ScFTIP1转录的调控作用.
主要成果:
- 鉴定出ScFTIP1并定位在内分泌网膜中.
- 在子宫外表达 ScFTIP1 挽救了 Arabidopsis ftip1-1 突变体中晚期开花的表型.
- ScFTIP1与阿拉比多普西斯FT和甘FT蛋白 (ScFT1,ScFT3) 都表现出相互作用.
- 发现ScNAC23直接与ScFTIP1促进体结合,对其转录进行负面调节.
结论:
- 在甘中,ScFTIP1在调节开花时间方面起着至关重要的作用.
- 建议在甘开花调节中涉及ScFTIP1,FT蛋白和ScNAC23的潜在机制.
- 这项研究提供了对主要作物物种中开花控制的分子基础的见解.
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