水杨酸、三唑酮对水淹胁迫下杜仲生理特性的影响
Effects of Salicylic Acid and Triadimefon on Physiological Characteristics of Eucommia ulmoides under Water Flooding Stress
何斐 1哀建国 1朱向涛2
作者信息
- 1. 浙江农林大学林业与生物技术学院,浙江临安311300
- 2. 暨阳学院,浙江绍兴311800
- 折叠
摘要
[目的]为深入研究杜仲的抗涝性提供基本的理论依据.[方法]以浙江农林大学天目学院苗圃的2a生杜仲苗为材料,设A(水淹+喷清水)、B(水淹+喷水杨酸)、C(水淹+喷三唑酮)3个处理.[结果]就涝害动态指数而言,水淹喷水杨酸和三唑酮的植株耐水淹能力较水淹喷清水的植株强.就综合相关生理指标而言,适宜浓度的水杨酸和三唑酮处理可以在不同程度抑制丙二醛含量的升高,在一段时间内提高杜仲体内的叶绿素含量、过氧化物酶活性和过氧化氢酶活性,促进有机渗透调节物质的积累,抑制膜脂氧化,降低细胞的膜透性,保护膜结构及其功能.[结论]水杨酸和三唑酮可以缓解水淹胁迫对2a年生杜仲苗的损害.
Abstract
[Objective] The research aimed to provide basic theoretical foundation for further research of Eucommia ulmoides submersion.[Method] We selected Eucommia ulmoides from the nursery in Tian-mu academy of Zhe-jiang A & F University as the tested material,and arranged 4 kinds of processing:A (water flooded + spray water),B (water flooded + spray salicylic acid),C (water flooded + spray triadimefon).[Result] On the dynamic index of waterlogging,compared with flooded plants spraying water,the resistance of flooded plants spraying salicylic acid and triadimefon were stronger.In terms of comprehensive physiological indicators,appropriate concentration of salicylic acid and triadimefon could inhibit the increase of MDA content in different degrees,and increase the chlorophyll content,POD and CAT,which could promote the accumulation of organic osmoregulation substances in a period of time,reduce the cell membrane permeability and protect the membrane structure and its function.[Conclusion] Salicylic acid and triadimefon can reduce the risks of water stress on biennial Eucommia ulmoides.
关键词
杜仲/水杨酸/三唑酮/生理特性/水淹胁迫Key words
Eucommia ulmoides/Salicylic acid/Triadimefon/Physiological characteristic/Water stress引用本文复制引用
基金项目
浙江省自然科学基金资助项目(Y3110393)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据