Changes in ROS-Scavenging Enzyme Activity in Rice (Oryza sativa L.) Exposed to High Salinity
2007
Koo, J.S. (Dongeui University, Busan, Republic of Korea) | Choo, Y.S. (Kyungpook National University, Daegu, Republic of Korea) | Lee, C.B. (Dongeui University, Busan, Republic of Korea), E-mail: [email protected]
We studied changes in the biochemical and physiological status and ROS-scavenging enzyme (superoxide dismutase, catalase and peroxidase) activity in leaves and roots of rice (Oryza sativa L.) plants exposed to high salinity. Under salt stress, the reduction in RWC (relative water content) in leaves was relatively severe in comparison with that of roots. The proline content was also significantly higher in leaves of rice plants following salt treatment. The activities of CAT and POX in roots increased with increasing NaCl concentration, but the activity of SOD decreased.
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