稀土元素对冬凌草再生植株生长的影响  

Effect of rare-earth elements La^(3+) and Ce^(3+) on the Growth of Regeneration Plant of Rabdosia rubescens(Hemsl.) Hara

作　　者：曹利华[1] 董诚明[1] 张艳贞[2] 乔毅琳[1] 李洋[1] 冷慕婵 

机构地区：[1]河南中医学院,河南郑州450008 [2]新乡医学院三全学院,河南新乡450003

出　　处：《中国现代中药》2014年第12期1006-1009,共4页Modern Chinese Medicine

基　　金：国家自然科学基金项目(81173486);国家科技重大专项(2012ZX09304006)

摘　　要：目的:探讨稀土元素镧、铈对冬凌草再生植株生长的影响。方法:在冬凌草再生植株时期,添加不同浓度的稀土元素镧、铈,重量法测定均单株鲜重及干重。结果:Ce Cl3·7H2O对冬凌草再生植株生长的促进作用优于La Cl3·6H2O,空白对照组农艺性状评分为51.70分,5μmol·L-1Ce Cl3·7H2O条件下,评分最高为67.40分。结论:稀土元素铈能显著改善冬凌草再生植株农艺性状,而镧对冬凌草生长促进作用不显著。Objective： The effects of rare-earth elements La^3＋ and Ce^3＋ on R. rubescens tissue culture were studied. Methods： In R. rubescens regeneration period, the rare earth elements La^3＋ or Ce3＋ with different concentrations were added in the culture medium. Weights of Fresh and dry plant were determined by gravimetric method. Results： CeC13·7H2O had more positive promoting effect on regeneration plant than LaCl3·6H2O. The score of blank control group was 51.70 points, under the treatment of 5 μmol· L^-1 CeCl3·7H2O, the score reached up to the highest value of 67.40 points. Conclusion： The rare-earth element Ce has significant effects on agronomic traits in the regeneration plant of R rubescens, but the effect of La was not significant.

关 键 词：冬凌草 稀土元素 农艺性状 

分 类 号：R969[医药卫生—药理学]