Overexpression of Peroxiredoxin Q Enhances Abiotic Stress Tolerance in Lisianthus
April 23, 2014| |
Abiotic stress caused by saline environments and extreme light and temperature conditions can lead to increased production of reactive oxygen species (ROS). Excessive ROS production will further lead to deleterious effects. Peroxiredoxin (Prx) is one of the primary ROS-scavenging enzymes of plants. Peroxiredoxin Q (PrxQ), a member of Prx family, was recently cloned from plants. To elucidate the protective function of PrxQ during abiotic stress, they increased the capacity of Lisianthus (Eustoma grandiflorum) to express PrxQ gene (SsPrxQ) from seepweeds (Suaeda salsa).
Results showed that the rPrxQ protein exhibit antioxidant activity and thioredoxin-dependent peroxidase activity in vitro. Furthermore, overexpression of SsPrxQ led to enhanced tolerance to salt and high light intensity. Based on the findings, SsPrxQ can be used to develop stress resistant plants
Read the research article at http://link.springer.com/article/10.1007/s11032-013-9982-1.
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