微量元素对益母草光合作用和水苏碱含量影响的研究

Effects of Various Trace Element on the Photosynthesis and Stachydrine Contents of Leonurus japonicus Houtt

【研究目的】研究微量元素对益母草生长发育及次生代谢产物的影响;【方法】在盆栽条件下,于益母草药材生长期,对叶面喷施微量元素溶液,并在喷肥后测其光合作用和药材中的水苏碱含量;【结果】结果表明,不同浓度的微肥对益母草的光合作用和水苏碱含量都有不同程度的促进作用,其中,作用比较显著的微量元素依次为正常浓度的Mn、Zn和Fe,以上三种元素处理分别比清水对照提高水苏碱含量达96%,62%和57%,且水苏碱含量与最大光合速率显著相关;【结论】微量元素可以通过参与调控益母草的生理代谢作用来影响次生代谢产物的合成,从而影响终产物水苏碱的含量。

[OBJECTIVE]To find out the effects of different trace element on the photosynthesis and secondary metabolites of Leonurus japonicus Houtt.;[METHOD]Pot experiments were carried out,different trace element were sprayed on the leaf during the developmental stage of medicines,and the leaf photosynthesis characteristids and contents of stachydrine of Leonurus japonicus Houtt.in different fertilization treatment were calculated and compared;[RESULTS]The result indicate that trace element of different concentration could facilitate the photosynthesis and stachydrine contents of Leonurus japonicus Houtt.in various degree.Among them,the effect of normal concentration of Mn,Zn and Fe were more distinguished,they elevate the stachydrine contents 96%,62%and 57%more than the control group.And stachydrine content were significant correlated with the max-photosynthesis;[CONCLUSION]It illustrate that trace element can impact the content of the end product by regulating the metabolism of physiology and the precursor and kinase of the secondary metabolite.