利用荧光共振能量转移检测外源信号分子对拟南芥ATP水平的影响

达晓伟; 孙敏; 王馨; 庞海龙; 贾凌云; 冯汉青

doi:10.11913/PSJ.2095-0837.2022.30390

利用荧光共振能量转移检测外源信号分子对拟南芥ATP水平的影响

达晓伟¹,
孙敏¹,
王馨¹,
庞海龙^1,2,
贾凌云^1,2,
冯汉青^1,2, ,

1. 西北师范大学生命科学学院, 兰州 730370;
2. 西北师范大学新农村发展研究院, 兰州 730070

基金项目:

国家自然科学基金(31870246)；甘肃省引导科技创新发展专项资金(2019ZX-05)；西北师范大学新农村发展研究院开放基金；甘肃省重点研发计划(18YF1NA051)。

详细信息

作者简介:
达晓伟(1995-)，女，硕士研究生，研究方向为植物生理生态(E-mail:2659708522@qq.com)。

通讯作者:
冯汉青,E-mail:fenghanq@nwnu.edu.cn

中图分类号: Q945
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出版历程
- 收稿日期: 2021-10-11
- 修回日期: 2021-12-17
- 网络出版日期: 2022-10-31
- 发布日期: 2022-06-27

Detection of the effects of exogenous signal molecules on ATP levels in Arabidopsis thaliana(L.)Heynh. using fluorescence resonance energy transfer

1. College of Life Science, Northwest Normal University, Lanzhou 730370, China;
2. New Rural Development Research Institute, Northwest Normal University, Lanzhou 730070, China

Funds:

This work was supported by grants from the National Natural Science Foundation of China (31870246), Special Fund for Guiding Scientific and Technological Innovation Development of Gansu Province (2019ZX-05), Open Fund of New Rural Development Institute of Northwest Normal University, Key Research and Development Program of Gansu Province (18YF1NA051).

摘要

摘要: 本研究使用ATP特异性荧光共振能量转移(Fluorescence resonance energy transfer，FRET)为基础的荧光蛋白传感器(Ateam1.03-nD/nA)，分析了4种外源信号分子(细胞外ATP、Ca²⁺、H₂O₂和NO)对拟南芥(Arabidopsis thaliana(L.)Heynh.)幼苗叶绿体和细胞质中ATP水平的影响。结果显示，细胞质ATP水平整体高于叶绿体，在4种不同浓度的信号分子处理下，叶绿体Ateam1.03-nD/nA的FRET比值仅在1.2 ~ 1.8波动；细胞质Ateam1.03-nD/nA 的FRET比值仅在2.2 ～ 3.0之间波动，未产生显著变化。结果表明在以上外源信号分子的作用下，植物细胞质和叶绿体ATP均维持在较为稳定的水平。
- 拟南芥 /
- 荧光共振能量转移 /
- ATP传感器
Abstract: We used an adenosine triphosphate (ATP) fluorescence protein-sensor (Ateam1.03-nD/nA) based on fluorescence resonance energy transfer (FRET) to analyze the effects of extracellular ATP, Ca²⁺, H₂O₂, and NO on ATP levels in the cytoplasm and chloroplasts of Arabidopsis thaliana seedlings. Results showed that ATP levels were higher in the cytoplasm than in the chloroplasts. Under treatment with different concentrations of the signal molecules, the FRET ratio of plastid-localized Ateam 1.03-nD/nA fluctuated non-significantly between 1.2 and 1.8. The FRET ratio of cytosol-localized Ateam1.03-nD/nA fluctuated non-significantly between 2.2 and 3.0. These results indicate that both cytoplasmic ATP and chloroplast ATP maintained relatively stable levels upon stimulation by signal molecules at different intensities.
- Arabidopsis thaliana /
- Fluorescence resonance energy transfer /
- ATP biosensor

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