Overexpression of a Chloroplast-located Peroxiredoxin Q Gene, SsPrxQ, Increases the Salt and Low-temperature Tolerance of Arabidopsis

• Published in: Journal of integrative plant biology Vol. 48; no. 10; pp. 1244 - 1249
• Main Authors: Jing, Li-Wen, Chen, Shi-Hua, Guo, Xiao-Li, Zhang, Hui, Zhao, Yan-Xiu
• Format: Journal Article
• Language: English
• Published: Melbourne, Australia Blackwell Publishing Asia 01-10-2006; Key Laboratory of Plant Stress Research,College of Life Sciences,Shandong Normal University,Jinan 250014,China
• Subjects: Arabidopsis; overexpression; peroxiredoxin Q; salt and low-temperature tolerance; Suaeda salsa; subcellular localization; salt and low-temperature tolerance; peroxiredoxin Q; suaeda salsa; overexpression; subcellular localization
• ISSN: 1672-9072; 1744-7909
• DOI: 10.1111/j.1744-7909.2006.00357.x

Abiotic stress, such as salt, drought and extreme temperature, can result in enhanced production of reactive oxygen species (ROS). Plants have developed both enzymatic ROS‐scavenging and non‐enzymatic ROS‐scavenging systems. The major ROS‐scavenging enzymes of plants include superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), glutathione peroxidase (GPX) and peroxiredoxins (Prxs). In the present work, we identified a gene encoding chloroplast‐located peroxiredoxin Q, SsPrxQ, from Suaeda salsa L. located at chloroplast. Overexpression of SsPrxQ in Arabidopsis leads to an increase in salt and low‐temperature tolerance.
(Managing editor: Li‐Hui Zhao)