植物信号分子和生物冠状体的实时亚细胞成像通过近红外纳米传感器
Su-Ji Jeon1,2, Hye-In Kim1, Bjoern F Hill3
1Department of Botany and Plant Sciences, University of California, Riverside, California 92521, United States.
ACS nano
|January 8, 2026
概括
新的光学纳米传感器能够高分辨率成像植物信号分子,如过氧化 (H2O2) 和脂质冠状形成在植物组织内,推进植物科学和生物技术.
科学领域:
- 植物生物学 植物生物学
- 生物技术是生物技术.
- 化学成像技术 化学成像技术
背景情况:
- 高时空分辨率的化学成像对植物科学至关重要.
- 了解信号分子和生物冠状形成是植物生物技术的关键.
研究的目的:
- 开发和展示光学纳米传感器用于植物组织中亚细胞成像.
- 以高分辨率可视化信号分子 (H2O2) 和脂质冠状形成.
主要方法:
- 使用光学纳米传感器用于近红外 (nIR) 成像.
- 实现空间分辨率<1μm和时间分辨率为1秒.
- 测量纳米传感器光峰火,以检测H2O2和脂质冠状形成.
主要成果:
- 在植物组织中观察到外源H2O2波的快速传播 (<30秒).
- 鉴定了Ca2+作为 mesophyll 细胞内内源性 H2O2 的诱导剂.
- 在各种压力条件和细胞类型下检测到H2O2生成的差异.
- 量化脂质冠状形成动力学在美索菲尔和表皮细胞.
结论:
- 光学纳米传感器为植物信号提供了前所未有的时空洞察力.
- 这项技术促进了对植物中H2O2动态和生物冠状形成的理解.
- 能够为植物科学和生物技术应用提供高分辨率的化学成像.
更多相关视频
相关概念视频
Cell Signaling in Plants
6.1K
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...
6.1K
Key Elements for Plant Nutrition
23.9K
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...
23.9K
Photoreceptors and Plant Responses to Light
28.3K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.3K


