2024年7月24日 星期三
NaCl 胁迫对美国白蜡幼苗部分生理指标的影响
Effect of NaCl stress on some physiological indexes of Fraxinus americana seedling
2014年 第23卷 第1期 页码[110-112]    下载全文[0.7MB]  
Abstract

Effect of 0 (CK), 1, 3, 5 and 7 g·L-1  NaCl stress on relative conductivity and contents of MDA, proline, soluble protein and soluble sugar in leaf of Fraxinus americana Linn. seedling was studied by nutrient solution culture method. Results show that with rising of NaCl mass concentration, relative conductivity and contents of MDA and proline in leaf all are gradually increasing and are higher than those of the control; soluble protein content appears a fluctuation trend with lower content under 7 g·L-1 NaCl stress than that of the control; soluble sugar content generally appears a changing trend of first increasing and then decreasing, and is higher than that of the control. It is suggested that F. americana has a stronger tolerance to NaCl stress.

关键词NaCl 胁迫; 美国白蜡; 相对电导率; MDA 含量; 渗透调节物质
Key wordsNaCl stress; Fraxinus americana Linn.; relative conductivity; MDA content; osmotic regulation substance
作者于金平1, 俞珊2, 梁有旺2, 倪学军3, 任全进1
所在单位1. 江苏省•中国科学院植物研究所(南京中山植物园), 江苏南京210014;
2. 南京林业大学森林资源与环境学院, 江苏南京210037; 3. 盐城市园林管理局, 江苏盐城224002
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基金项目江苏省苏北科技发展计划资助项目(SDN201210151)