解读增长防御辩证法:玉米中的TOR信号和发育遗传学
Michael Busche1, Sannidhi Menon1, Jacob O Brunkard1
1Laboratory of Genetics, University of Wisconsin - Madison.
Journal of experimental botany
|August 12, 2025
概括
植物重新连接生长以生存压力,平衡即时防御与长期发展. 本综述探讨了玉米如何整合压力信号以保持弹性,并为可持续农业实践提供信息.
科学领域:
- 植物生物学 植物生物学
- 压力生理学 压力生理学
- 发展遗传学 发展遗传学
背景情况:
- 植物激活了诸如植物激素信号和二次代谢物生产等防御机制,以应对环境压力.
- 这些压力反应往往使资源从增长中转移,导致成熟的增长-防御权衡.
- 植物还使用发育策略来减轻压力,改变生长模式以提高生存或避免.
研究的目的:
- 审查一下玉米是如何作为一个模型植物,根据各种非生物和生物压力对它的生长进行修改.
- 要突出关键的发育基因参与维持平衡或诱导在压力期间的形态变化.
- 检查压力下的能量再平衡机制,重点关注对拉帕素 (TOR) 敏感激素网络的目标.
主要方法:
- 文献综述,重点关注植物应激反应和发育可塑性.
- 对玉米中生长压力整合的基因和分子机制的分析.
- 探索能量信号通路,包括TOR和激素网络.
主要成果:
- 植物利用即时补偿机制和发育开关来管理压力.
- 玉米中的特定发育基因与压力信号协调形态变化.
- 对TOR敏感的激素网络在压力条件下重新平衡植物能量分配方面发挥着至关重要的作用.
结论:
- 玉米整合生长和应激反应的策略为提高作物弹性提供了洞察力.
- 了解这些机制对于发展可持续农业至关重要,它能够承受短暂的压力而不会降低产量.
- 利用特定于玉米的创新可以为改善其他作物种的应激耐受性提供信息.
更多相关视频
10:08Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development
Published on: March 5, 2017
9.6K
06:11Author Spotlight: Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
Published on: September 22, 2023
3.4K
相关概念视频
01:17Gene Regulation During Sporulation
78
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
78
02:36Meristems and Plant Growth
46.9K
Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
46.9K
02:19Morphogenesis
28.8K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
28.8K
03:03mTOR Signaling and Cancer Progression
3.9K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.9K
02:36Cells Coordinate Growth and Proliferation
4.6K
Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
4.6K
01:25Cell Signaling in Plants
5.7K
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...
5.7K