广西植物2012，Vol.32Issue(3)：377-381,5.DOI:10.3969/j.issn.1000-3142.2012.05.019
镧对菹草活性氧清除酶活性及叶细胞超微结构的影响
Effects of lanthanum on the active oxygenscavenging enzyme activities and ultrastructure in Potamogeton crispus leaves
摘要
Abstract
The ultrastructural and physiological effects of lanthanum on Potamogeton crispus were studied in present hydroponic experiment It was found that the foliage grew better in LaCl3 8H2O than in the medium without LaCU 8H2O. The chlorophyll content, average auto-fluorescent intensity,nitric acid reducase(NRase)activity,peroxi-dase(POD) activity, catalase (CAT)activity and soluble protein content increased when the plants were treated with lower La3+ concentration , whereas superoxide dismutase (SOD) activity, membrane permeability, O2- generation rate and malondialdehyde(MDA) content decreased. The TEM results provided an ultrastructural evidence for the effect of La3+ on P. crispus. The optimum La3+ concentrations which promote P. crispus growth were suggested to range from 10 to 15 mg·L-1.关键词
镧/菹草/活性氧清除酶/超微结构Key words
lanthanum/ P. crispus/ active oxygen-scavenging enzyme/ ultrustructure分类
农业科技引用本文复制引用
胡金朝..镧对菹草活性氧清除酶活性及叶细胞超微结构的影响[J].广西植物,2012,32(3):377-381,5.基金项目
河南省科技攻关项目(92102310130) （92102310130）
四川省环境保护厅课题(2011HB005) （2011HB005）
