想象植物能量有机体的动态
Amanda M Koenig1, Bo Liu2, Jianping Hu1
1Michigan State University-Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI, U.S.A.
Biochemical Society transactions
|November 17, 2023
概括
植物有机体,如质体,线粒体和过氧体,在细胞内移动,以进行生长和防御. 了解它们的运动性是植物发育和应激反应的关键.
科学领域:
- 植物细胞生物学 植物细胞生物学
- 器官的动态 器官的动态
- 细胞骨运动蛋白质
背景情况:
- 植物器官依赖于actin-myosin和microtubule-kinesin系统进行细胞内运输.
- 叶绿体,线粒体和过氧体是参与新陈代谢,生长和防御的重要能量器官.
- 器官分布和机动性对于植物适应环境和发育线索至关重要.
研究的目的:
- 审查目前对植物细胞中能量有机体 (叶绿体,线粒体,过氧体) 运动和分布的理解.
- 强调有机细胞运动在植物生长,发育和应激反应中的重要性.
- 识别器官运动的功能和机制方面的知识差距.
主要方法:
- 使用有机体特定的光蛋白标签进行同时可视化.
- 使用共聚焦显微镜观察活植物细胞中的有机细胞运动.
- 整合了关于质体,线粒体和过氧体运动性的研究结果.
主要成果:
- 能量器官表现出不同的形态和运动模式,以应对各种刺激 (光,温度,ROS,发展).
- 经常观察到器官间相互作用和身体接触,由膜突起促进.
- 在细胞过程中,有机体的再分配独立或协调地发生,例如花粉管发育和免疫反应.
结论:
- 尽管取得了进展,但植物能量器官运动的功能和机制基础仍然不完全理解.
- 识别控制有机细胞运动的因素对于理解植物生长,发育和应激弹性至关重要.
- 需要进一步的研究来阐明复杂的调节器官动力学响应内在和外在信号.
相关概念视频
Anatomy of Chloroplasts
109.4K
Green algae and plants, including green stems and unripe fruit, harbor chloroplasts—the vital organelles where photosynthesis takes place. In plants, the highest density of chloroplasts is found in the mesophyll cells of leaves.
109.4K
The Anatomy of Chloroplasts
5.2K
Green algae and plants, including green stems and unripe fruit, harbor specialized organelles called chloroplasts to carry out photosynthesis. They coordinate both stages of photosynthesis — the light-dependent reactions and the light-independent reactions. The light-dependent reactions use sunlight to release oxygen and produce chemical energy in the form of ATP and NADPH, and the light-independent reactions capture CO2 and use ATP and NADPH to produce sugar.
Structure of...
Structure of...
5.2K
The Movement of Organelles and Vesicles
4.5K
In eukaryotic cells, cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
4.5K
Animal and Plant Cell Structure
29.7K
Animal and plant cells not only differ in their structure, function, and mode of nutrition but also in how they reproduce, specialize, and organize into complex structures.
Cell Division
Though both plant and animal cells divide by mitosis (for non-gametic cells) and meiosis (for gametic cells), they differ in the specifics of this process. Unlike animal cells, plant cells lack centrosomes — an organelle responsible for organizing the spindle fibers and segregating the chromosomes during...
Cell Division
Though both plant and animal cells divide by mitosis (for non-gametic cells) and meiosis (for gametic cells), they differ in the specifics of this process. Unlike animal cells, plant cells lack centrosomes — an organelle responsible for organizing the spindle fibers and segregating the chromosomes during...
29.7K
Plant Cells and Tissues
61.3K
Plant tissues are collections of similar cells performing related functions. Different plant tissues will have their own specialized roles and can be combined with other tissues to form organs such as flowers, fruit, stem, and leaves. Two major types of plant tissue include meristematic and permanent tissue.
61.3K
Protein Dynamics in Living Cells
2.1K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.1K


