CAJ | 학술논문

目的:探讨淹水胁迫对铺地黍几种保护酶活性的影响.方法:通过模拟试验,研究不同淹水时间对铺地黍体内超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)及多酚氧化酶(PPO)活性的影响.结果:在淹水胁迫前期,铺地黍体内SOD、CAT和PPO活性总体表现为升高的变化特征.之后,随着胁迫时间的延长,3种酶活性均逐渐降低,在淹水5w时,SOD、CAT和PPO活性分别为对照的38.7%、50.3%和178.2%.而在整个淹水期间POD活性则一直呈升高的趋势.结论:几种保护酶对淹水胁迫的响应能力有差异,其中SOD、CAT活性的变化可作为铺地黍对淹水反应的生理指标.
목적:탐토엄수협박대포지서궤충보호매활성적영향.방법:통과모의시험,연구불동엄수시간대포지서체내초양화물기화매(SOD)、과양화경매(CAT)、과양화물매(POD)급다분양화매(PPO)활성적영향.결과:재엄수협박전기,포지서체내SOD、CAT화PPO활성총체표현위승고적변화특정.지후,수착협박시간적연장,3충매활성균축점강저,재엄수5w시,SOD、CAT화PPO활성분별위대조적38.7%、50.3%화178.2%.이재정개엄수기간POD활성칙일직정승고적추세.결론:궤충보호매대엄수협박적향응능력유차이,기중SOD、CAT활성적변화가작위포지서대엄수반응적생리지표.
Objective: It was to search the activity of protective enzymes to wateriogging stress on Panicum repens.Method: In this paper, the effects of various waterlogging time length on the activity of superoxide dismutase(SOD), catalase (CAT), peroxidase (POD) and polyphenol oxidase (PPO) in Panicura repens were studied by simulated experiment.Result: The activity of SOD, CAT and POD tended to increase under waterlogging stress at early days.As the time of treatment increased, the activity of the three enzymes was decreased gradually,when Panicum repens were treated for five weeks, the activity of SOD, CAT and POD was 38.7% , 50.3%, 178.2% of the control.While the POD activity always increased during the whole period of waterlogging stress.Conclusion: The responsibility of some protective enzymes to waterlogging stress is different, changes of SOD, CAT activity could be used as physiological indicators of Panicum retorts to waterlogging reaction.