光照强度对盾叶薯蓣试管苗膜脂过氧化的影响  

Effects of Light Intensity on Membrane Lipid Peroxidation of Dioscorea zingiberensis C.H.Wright in Vitro

作　　者：芦婕[1] 张晓丽[1,2] 刘雯[1] 刘露颖[1] 郭婧[1] 龚玉佳[1] 李明军[1,2] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007 [2]河南省高校道地中药材保育及利用工程技术研究中心,河南新乡453007

出　　处：《河南农业科学》2013年第7期94-96,102,共4页Journal of Henan Agricultural Sciences

基　　金：河南省科技创新杰出人才计划项目(114200510013)

摘　　要：以盾叶薯蓣试管苗为材料,测定不同光照强度下盾叶薯蓣叶片丙二醛(MDA)含量、O2.-含量及相对电导率,研究不同光照强度对盾叶薯蓣试管苗膜脂过氧化的影响。结果表明,光照强度为750lx和3 200lx时,盾叶薯蓣试管苗叶片MDA含量、O2.-含量及相对电导率均相对较高,而光照强度为2 000lx时,叶片MDA含量、O2.-含量及相对电导率均相对较低。表明2 000lx的光照强度较适宜盾叶薯蓣试管苗的生长。The MDA content, O2 content and the relative conductivity of Dioscorea zingiberensis C. H. Wright plantlets under different light intensity were determined,and the effects of light in- tensity on membrane lipid peroxidation in leaf of Dioscorea zingiberensis C. H. Wright plantlets were studied. The results showed that the MDA content,O2 content and the relative conductivity were relatively high under the light intensity of 750 lx and 3 200 lx. While under the light intensi- ty of 2 000 lx, the MDA content, O2 content and the relative conductivity were relatively low, when the plantlets of Dioscorea zingiberensis C. H. Wright grew well.

关 键 词：盾叶薯蓣 光照强度 MDA含量 O2 -含量 相对电导率 

分 类 号：S632.1[农业科学—蔬菜学]