湘西地区不同居群箭叶淫羊藿叶片的脂质过氧化

Study on Lipid Peroxidation of Several Populations Epimedium Sagittatum M. Leaves in West Hunan

对湘西地区凤凰、永顺、龙山3个不同居群的箭叶淫羊藿叶片的超氧阴离子自由基(.O2)的产生速率和丙二醛(MDA)的含量进行测定.结果表明:永顺的箭叶淫羊藿的超氧阴离子自由基的产生速率最大,为(0.0591±0.0033)μmol.min-1.g-1,而龙山的箭叶淫羊藿的超氧阴离子自由基的产生速率最小,为(0.053 0±0.0009)μmol.min-1.g-1;在3个不同居群的箭叶淫羊藿叶片的MDA的含量中,永顺的箭叶淫羊藿的含量最高,为(0.0149±0.0014)nmol.g-1,而龙山的箭叶淫羊藿的含量最低,为(0.0075±0.0014)nmol.g-1.

This experiment was conducted to study MDA content and the producing rate of superoxide anion free radical （O2 ） in the leaves of the Epimedium sagittatum M. from Feng Huang Yong Shun and Long Shan in wester Hunan of China The results showed that the producing rate of·O2 from Yong Shun was the highest （0.057 1± 0.003 3 μmol·min^ -1 ·g ^-1） , and the producing rate of ·O2 from Long Shan was the lowest （ 0 . 053 0 ± 0 . 000 9μmol · min - 1· g ）; but MDA content from Long Shan was the highest （0.014 9 ± 0.001 4 nmol· g^-1 ） ,and MDA content from Feng Huang was the lowest （0.007 5 ±0.001 4 nmol·g^-1）.