Abstract: The influence was studied adding exogenous lysine to alkaloids contents in the roots of annual Sophora flavescens for further research of alkaloids metabolic mechanism and improving contents. The result indicate that all the treatments added exogenous lysine could promoted the contents of the total alkali, which is 159. 43%, 168. 33%, 137. 97% and 144. 52%, respectively, compared with control, when the concentration of exogenous lysine was 600 mg/L in the four sampling phase of July, August, September and October, while the difference was not significant between the treatments of root pouring and foliar spraying. The total contents of matrine and oxmatrine were increased by 102. 38%, 77. 79%, 48. 63%, 51. 15%, respectively, compared with control after the exogenous lysine was applied at the four sampling phases. The content of alkaloids in sophora flavescens can be improved adding proper concentration exogenous lysine.

Key words: Sophora flavescens, Lysine, Alkaloids, Matrine, Oxmatrine

CLC Number: 

• Q946.88