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Overexpression of a Chloroplast‐located Peroxiredoxin Q Gene, SsPrxQ , Increases the Salt and Low‐temperature Tolerance of Arabidopsis
Author(s) -
Jing LiWen,
Chen ShiHua,
Guo XiaoLi,
Zhang Hui,
Zhao YanXiu
Publication year - 2006
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/j.1744-7909.2006.00357.x
Subject(s) - apx , peroxiredoxin , reactive oxygen species , catalase , arabidopsis , superoxide dismutase , chloroplast , peroxidase , biology , glutathione peroxidase , abiotic stress , biochemistry , gene , botany , antioxidant , chemistry , enzyme , mutant
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)