发布: 2016年11月05日第6卷第21期 DOI: 10.21769/BioProtoc.1999 浏览次数: 15461
评审: Arsalan DaudiAnonymous reviewer(s)
相关实验方案
通过在体内直接组装多个DNA片段在青蒿中异源生产青蒿素
Nur Kusaira Khairul Ikram [...] Henrik Toft Simonsen
2023年07月20日 1321 阅读
Abstract
This protocol describes the measurement of hydrogen peroxide (H2O2) content in Arabidopsis root tissue by using the Amplex® Red Hydrogen Peroxide/Peroxidase Assay Kit. When root tissue is disrupted and resuspended in phosphate buffer, H2O2 is released from the cells. The obtained root extracts containing H2O2 can be mixed with a solution containing Amplex® Red reagent (10-acetyl-3,7-dihydrophenoxazine). In the presence of horseradish peroxidase, the Amplex® Red reagent reacts with H2O2 in a 1:1 stoichiometry. The resulting product is the red-fluorescent compound resorufin which can be detected fluorometrically or spectrophotometrically. Our protocol is based on the manual of the Amplex® Red Hydrogen Peroxide/Peroxidase Assay Kit and describes a step-by-step procedure with a detailed description of the necessary controls and data analysis. We have also included modifications of the protocol, notes and examples that intend to aid the user in easily reproducing the assay with their own samples.
Background
Reactive oxygen species (ROS), such as H2O2, can be generated in the cell as a result of a developmental cue or a stress condition. In high amounts, ROS accumulation can be detrimental by causing cellular damage. However, increased ROS production can also have a signaling role and serve as a secondary messenger in controlling downstream cellular responses. In plants, a signaling role for ROS has been shown for many abiotic stresses, such as drought, salinity, temperature stress, and nutrient deprivation (Mittler, 2002; Mittler and Blumwald, 2015; Xia et al., 2015). In our recent publication Le et al. (2016), we have investigated the connection between ROS production and iron (Fe) deficiency response regulation by investigating the H2O2 content of roots from wild type and mutant Arabidopsis plant lines grown under sufficient and deficient Fe supply conditions.
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版权信息
© 2016 The Authors; exclusive licensee Bio-protocol LLC.
如何引用
Readers should cite both the Bio-protocol article and the original research article where this protocol was used:
分类
植物科学 > 植物生物化学 > 其它化合物
植物科学 > 植物新陈代谢 > 其它化合物
生物化学 > 其它化合物 > 活性氧
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