一个受酸化调节的NPF输送器通过调节大豆植物的化物吸收来确定盐分耐受性
Yunzhen Wu1,2, Jingya Yuan1,2, Like Shen3,4
1College of Life Sciences, Nanjing Agricultural University, 210095, Nanjing, China.
The EMBO journal
|January 3, 2025
概括
科学家们确定了一种大豆基因GmNPF7.5,该基因控制离子吸收. 这个基因的特定版本通过减少化物积累来增强盐分耐受性,为培育耐盐作物提供了一种策略.
科学领域:
- 植物分子生物学 植物分子生物学
- 农作物科学 农作物科学
- 遗传学 是一个遗传学.
背景情况:
- 性土壤对全球的作物生产构成重大威胁.
- (Cl-) 离子毒性严重影响作物产量,特别是在大豆中.
- 发展耐盐作物对于粮食安全至关重要.
研究的目的:
- 为了确定调节大豆中化物平衡的关键遗传因素.
- 了解离子吸收和转移背后的分子机制.
- 提供提高大豆盐分耐受性的策略.
主要方法:
- 全基因组关联研究 (GWAS) 以确定候选基因.
- 转录组分析用于调查基因表达模式.
- 对GmNPF7.5单质类型和蛋白质激酶相互作用的功能分析.
主要成果:
- 鉴定出GmNPF7.5是影响化物恒温的主要基因位点.
- 两个哈普洛类型,GmNPF7.5^HapA和GmNPF7.5^HapB,显示出不同的化物 (Cl-) 和酸盐 (NO3-) 运输活动.
- 通过减少Cl-积累,GmNPF7.5^HapB赋予了增强的盐耐受性.
- 通过GmPI4Kγ4的酸化调节了GmNPF7.5的活性,抑制了Cl-的吸收.
结论:
- GmNPF7.5在调节大豆中离子吸收和盐耐受性方面发挥着至关重要的作用.
- 该GmNPF7.5^HapB单元型为培育耐盐大豆品种提供了宝贵的遗传资源.
- 一种涉及GmPI4Kγ4酸化的新型调节机制在盐应激下控制化物恒温.
相关概念视频
Responses to Salt Stress
13.0K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.0K
Key Elements for Plant Nutrition
18.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.6K
Protein Transport to the Inner Chloroplast Membrane
2.1K
Proteins targeted to the inner chloroplast membrane, or plastid proteins, are transported by two general pathways: the stop-transfer and the re-insertion or post-import pathways. Most plastid proteins carry N-terminal transit sequences and internal import sequences targeting it to the specific chloroplast subcompartment. Proteins targeted by the stop-transfer pathway have internal hydrophobic sequences that inhibit their translocation into the stroma. As a result, these precursors are arrested...
2.1K
Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K
Short-distance Transport of Resources
15.6K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
15.6K
Protein Transport to the Outer Chloroplast Membrane
1.9K
Chloroplast outer membrane proteins encoded by the nucleus are synthesized in the cytosol. Soon after synthesis, they bind cytosolic factors such as 14-3-3 protein and the Hsp70 chaperones that keep these precursors in an unfolded state until their translocation.
Two models describe the mechanism of precursor recognition and entry across the outer membrane through the TOC complex. Model 1 suggests the newly synthesized precursor binds to the TOC receptor 159 and forms a complex.
Two models describe the mechanism of precursor recognition and entry across the outer membrane through the TOC complex. Model 1 suggests the newly synthesized precursor binds to the TOC receptor 159 and forms a complex.
1.9K


