氯化钠胁迫下甜菜叶片ATPase活性动态变化  

Dynamic Changes in ATPase Activities in Sugarbeet Leaves under NaCl Stress

作　　者：孙学伟[1] 耿贵[2,3] 於丽华[2,3] 赵慧杰[1] 付盈盈[1] 刘治婷 刘慧[1] 

机构地区：[1]黑龙江大学生命科学学院,哈尔滨150080 [2]黑龙江省普通高等学校甜菜遗传育种重点实验室,哈尔滨150080 [3]中国农业科学院甜菜研究所,哈尔滨150080

出　　处：《中国糖料》2015年第4期24-27,共4页Sugar Crops of China

基　　金：国家自然科学基金项目(31271779);国家农产品质量安全风险评估专项经费(GJFP2015011)

摘　　要：采用营养液室内培养法,研究了不同盐浓度胁迫对甜菜叶片的影响,以及盐胁迫后,(Na^+-K^+)-ATPase、Ca^(2+)-ATPase和Mg^(2+)-ATPase活性随时间的动态变化。结果表明,与对照组相比,70mmol/LNaCl处理组甜菜叶片(Na^+-K^+)-ATPase、Ca^(2+)-ATPase和Mg^(2+)-ATPase活性均略有增加,但增加幅度较小。其余3个盐处理组活性均有不同程度增加,且浓度越高,增加幅度越大。各处理组甜菜叶片(Na^+-K^+)-ATPase、Ca^(2+)-ATPase和Mg^(2+)-ATPase活性随处理时间增加呈现不同的波动性变化。Sugarbeet plants were cultivated in the hydroponics to investigate the stressful effects of different NaCl concentrations on sugarbeet leaves and dynamic changes on activities of （Na^＋-K^＋）-ATPase, Ca^2＋-ATPase and Mg^2＋-ATPase under saline stress. The results showed that： in comparison with the control group, the activities of （Na^＋-K^＋） -ATPase, CaE2＋-ATPase and MgE＋-ATPase in leaves under the 70 mmol/L NaCl treatment was increased slightly. The ATPase activities of sugarbeet in the rest of treatment groups were increased significantly following the increase of NaCl concentrations. The activities of （Na^＋-K^＋）-ATPase, Ca^2＋-ATPase and MgE2＋-ATPase of sugarbeet leaves fluctuate with prolonged time in each of the same treatment group.

关 键 词：甜菜 盐胁迫 ATP酶活性 动态变化 

分 类 号：S566.3[农业科学—作物学]