| 邻羟基苯甲酸对干旱胁迫下杉木幼苗保护酶的影响 |
| |
| 引用本文： | 丁国昌,林思祖,王爱萍,曹光球.邻羟基苯甲酸对干旱胁迫下杉木幼苗保护酶的影响[J].中国生态农业学报,2008,16(5):1183-1187. |
| |
| 作者姓名： | 丁国昌 林思祖 王爱萍 曹光球 |
| |
| 作者单位： | 福建农林大学林学院,福州,350002 |
| |
| 基金项目： | 福建省自然科学基金，福建农林大学校科研和教改项目 |
| |
| 摘 要： | 为研究干旱胁迫下杉木自毒物质邻羟基苯甲酸(SA)对杉木幼苗的毒害作用,采用不同浓度的聚乙二醇(PEG-6000)模拟干旱处理,通过水培方法研究干旱胁迫下不同浓度杉木自毒物质邻羟基苯甲酸(SA)对杉木幼苗保护酶的影响.结果表明:在轻度(-0.3MPa)、中度(-0.5MPa)干旱胁迫下,随SA浓度增加超氧化物歧化酶(SOD)活性先降后升再下降,但重度(-0.7MPa)干旱胁迫下,SOD活性直线下降;过氧化物酶(POD)活性则表现为在轻度干旱胁迫下先降后升,中度和重度干旱胁迫下总体呈下降趋势.
|
| 关 键 词： | 干旱胁迫杉木 自毒物质 邻羟基苯甲酸 过氧化氢酶 过氧化物酶 |
Effect of salicylic acid on antioxidant enzymes of Chinese fir seedling under drought-stress |
| |
| DING Guo-Chang,LIN Si-Zu,WANG Ai-Ping and CAO Guang-Qiu.Effect of salicylic acid on antioxidant enzymes of Chinese fir seedling under drought-stress[J].Chinese Journal of Eco-Agriculture,2008,16(5):1183-1187. |
| |
| Authors: | DING Guo-Chang LIN Si-Zu WANG Ai-Ping and CAO Guang-Qiu |
| |
| Institution: | College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China;College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China;College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China;College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China |
| |
| Abstract: | To study the effects of auto-toxic substances, salicylic acid (SA), on Chinese fir, antioxidant enzyme activity of Chinese fir treated with different concentrations of SA under different degrees of drought-stress (different concentrations of PEG) was investigated. Results show that under slight (-0.3 MPa) and moderate (-0.5 MPa) drought-stress, superoxide dismutase (SOD) activity initially increases, followed by a subsequent decrease, and then sharp decline. Under severe drought-stress (-0.7 Mpa), SOD activity decrease linearly. POD activity shows an initial decline, followed by a rise for a maximum of 21 days under slight drought-stress. However, POD activity shows an overall decline under moderate to severe drought-stress. |
| |
| Keywords: | Drought-stress Chinese fir Auto-toxicity M-hydroxy phthalic acid Superoxide dismutase Peroxidase |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国生态农业学报》浏览原始摘要信息 |
| 点击此处可从《中国生态农业学报》下载免费的PDF全文 |
|
