Abstract
As immobile organisms, green plants must be frequently challenged by a broad range of environmental stresses. During these constantly adverse conditions, reactive oxygen species (ROS) levels can rise extremely in plants, leading to cellular dysfunction and cell death presumably due to irreversible protein overoxidation. Once considered merely as deleterious molecules, cells seek to remove them as efficiently as possible. To enhance ROS scavenging capacity, genes encoding antioxidative enzymes can be directly expressed from the genome of plastid (chloroplast), a major compartment for ROS production in photosynthetic organisms. Thus, overexpression of antioxidant enzymes by plastid engineering may provide an alternative to enhance plant’s tolerance to stressful conditions specifically related with chloroplast-derived ROS. Here, we describe basic procedures for expressing glutathione reductase, a vital component of ascorbate-glutathione pathway, in tobacco via plastid transformation technology.
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Acknowledgments
This work was supported by grants from the National Natural Science Foundation of China (32071477, 31700227, and 31300225), Innovation Base for Introducing Talents of Discipline of Hubei Province (2019BJH021), and start-up funding of Anhui Agricultural University.
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Li, S. et al. (2022). Modification of Chloroplast Antioxidant Capacity by Plastid Transformation. In: Mhamdi, A. (eds) Reactive Oxygen Species in Plants. Methods in Molecular Biology, vol 2526. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2469-2_1
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DOI: https://doi.org/10.1007/978-1-0716-2469-2_1
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