光周期对紫花苜蓿SOD、POD活性的影响  

Effect of photoperiod on SOD and POD activities in alfalfa

作　　者：史莹华[1] 张伟毅[1] 于晓丹[1] 王成章[1] 

机构地区：[1]河南农业大学牧医工程学院,河南郑州450002

出　　处：《草原与草坪》2009年第1期74-77,共4页Grassland and Turf

基　　金：国家自然科学基金项目(30771527)资助

摘　　要：研究了8,12和16 h不同的光照时间对秋眠型紫花苜蓿品种Vernal的超氧化物歧化酶(SOD)和过氧化物酶(POD)活性的影响。结果表明:Vernal的SOD和POD的活性呈现出8 h光照最高,12 h次之,16 h最低的趋势;同一光周期条件下,SOD、POD的活性随着生长期的延长而升高,说明SOD、POD的活性与光周期有关,短日照可提高SOD、POD的活性,增强其抗逆性。The experiments were conducted to explore the effects of three different photoperiods （8 h, short day; 12 h, middle day; 16 h, long day） on superoxide dismutase （SOD） and peroxidase （POD） activities in fall dormancy alfalfa. The results showed that the SOD and POD activities were the highest under 8 h day-length, followed by 12 h day-length and 16 h day-length. Under the same day-length, SOD and POD activities increased with the elongation of growth period. It showed that a significant relationship between SOD and POD activities and photoperiod, and short day photoperiod could improve the activities of SOD and POD.

关 键 词：紫花苜蓿 SOD POD 光周期 秋眠性 

分 类 号：Q554[生物学—生物化学] S543[农业科学—作物学]