| UV-B辐射下离体芒果成年叶抗氧化响应 |
| |
| 引用本文： | 刘鹏,周开兵,丁姗,蔡惠珍.UV-B辐射下离体芒果成年叶抗氧化响应[J].贵州大学学报(农业与生物科学版),2010,29(5):397-402. |
| |
| 作者姓名： | 刘鹏 周开兵 丁姗 蔡惠珍 |
| |
| 作者单位： | 海南大学热带作物种质资源保护与开发利用教育部重点实验室; |
| |
| 基金项目： | 海南省自然科学基金项目 |
| |
| 摘 要： | 利用分光光度法,研究了增强UV-B辐射条件下＂台农一号＂芒果盆栽苗离体成年叶片抗氧化响应。结果表明：UV-B处理使叶片丙二醛含量和相对电导率升高,叶绿素含量和叶绿素a/b降低,说明处理引起了叶片损伤,且随处理时间的延长叶片伤害加重;UV-B处理的叶片可溶性蛋白、类黄酮、类胡萝卜素含量和过氧化氢酶活性显著高于对照,Vc和还原型谷胱甘肽含量明显低于对照,超氧化物歧化酶活性表现为前期（8 h前）高于对照和后期（10 h后）低于对照,说明增强UV-B辐射可诱导叶片细胞通过清除活性氧、积累保护色素直接吸收部分UV-B辐射和增强渗透调节能力来提高抗增强UV-B辐射损伤的能力。
|
| 关 键 词： | 分光光度法 增强UV-B辐射 芒果 成年叶 损伤 保护反应 |
Antioxidative Response of Adult Mango (Mangifera indica L.) Leaves to Enhanced UV-radiation |
| |
| LIU Peng,ZHOU Kai-bing,DING Shan,CAI Hui-zhen.Antioxidative Response of Adult Mango (Mangifera indica L.) Leaves to Enhanced UV-radiation[J].Journal of Mountain Agriculture & Biology,2010,29(5):397-402. |
| |
| Authors: | LIU Peng ZHOU Kai-bing DING Shan CAI Hui-zhen |
| |
| Institution: | LIU Peng,ZHOU Kai-bing,DING Shan,CAI Hui-zhen(Key Laboratory of Protection and Development Utilization of Tropical Crop Germplasm Resources of Education Ministry,Hainan University,Haikou Hai'nan 570228,China) |
| |
| Abstract: | Adult leaves of potted mango young trees were used to investigation the response in the antioxidation to the enhanced UV-B radiation by infrared absorption spectrometry in the present work.The results showed that after UV-B treatment the content of MDA and the relative conductivity were elevated,while the content of chlorophyll and the ratio of chlorophyll a/b decreased.It indicated the enhanced UV-B radiation caused the damages of leaves,which would be worse with progression of stress.The UV-B treated leav... |
| |
| Keywords: | Spectrophotometry enhanced UV-B radiation mango adult leaf damage antioxidative response |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
