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한국생태학회 / v.30, no.4, 2007년, pp.307-314 
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( Changes in ROS-Scavenging Enzyme Activity in Rice (Oryza sativa L.) Exposed to High Salinity ) |
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| 초 록 |
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| 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. These results suggest that the increase of endogenous proline is closely associated with the increase of CAT and POX activities, which may play important roles in salt tolerance. Therefore, we conclude that the alleviation of oxidative damage and increased resistance to salinity may result from the presence of efficient antioxidative systems. |
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| 키워드 |
| Catalase;Oxidative stress;Peroxidase;Rice;Salinity;Superoxide dismutase; |
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Journal of Ecology and Field Biology / v.30, no.4, 2007년, pp.307-314
한국생태학회
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414151034)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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