通过使用基于clinoptilolite的Ca-alginate,对植物标志性免疫基因进行第二次信使介导的刺激
Guofu Yan1, Xiaoli Wang1, Huijie Ge1
1Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing, 100124, PR China.
Plant physiology and biochemistry : PPB
|November 25, 2025
概括
含有藻酸盐 (Alg-Ca-NCP) 的天然clinoptilolite通过刺激关键免疫基因和改善运输来增强植物免疫力. 这种新的材料可以增强植物的防御机制和抗压力的弹性.
科学领域:
- 植物科学 植物科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 对于植物细胞膜的稳定性,新陈代谢和信号传递至关重要.
- 有效的运输对于植物生理功能和免疫力至关重要.
- 需要新的输送系统来增强植物的防御反应.
研究的目的:
- 为了探索天然clinoptilolite (NCP) 与藻酸盐 (Alg-Ca-NCP) 作为二次信号的潜力.
- 研究Alg-Ca-NCP对植物免疫基因和运输的影响.
- 评估Alg-Ca-NCP对植物生理学参数和应激抵抗力的影响.
主要方法:
- 用Alg-Ca-NCP对叶进行治疗,并评估免疫基因表达 (WRKY33, NHL10, OXI1).
- 通过通道测量Ca2+运输.
- 在植物叶子中分析catalase和叶绿素 (Chla, Chlb) 的含量.
- 关于FITC-Alg-Ca-NCP在阿拉比多普西斯和西红中的吸收和运输的初步调查.
主要成果:
- Alg-Ca-NCP显著刺激了植物免疫基因 WRKY33,NHL10 和 OXI1.1.
- 与CaCl2和水相比,Alg-Ca-NCP治疗增强了Ca2+运输,并显著增加了catalase活性.
- Alg-Ca-NCP改善了叶绿素水平,提高了电子传输能力,并减少了缺氧引起的损伤.
- 初步数据表明,Alg-Ca-NCP可能通过跨膜运输进入植物细胞,并通过体转移.
结论:
- Alg-Ca-NCP有效地作为二次信号,增强植物免疫力和耐压力.
- 该材料促进的运输,并改善了植物的关键生理参数.
- 需要进一步的研究来阐明Alg-Ca-NCP的精确细胞吸收和运输机制.
相关概念视频
Calmodulin-dependent Signaling
6.0K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
6.0K
C4 Pathway and CAM
48.6K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
48.6K
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


