7个变异红叶杜仲叶片色素及活性成分分析OA北大核心CSCDCSTPCD

The experiment was conducted to investigate the formation reasons for different colors and the active ingredients content of red leaf Eucommia ulmoides variation-types.With seven red leaf E.ulmoides variationtypes and one green leaf E.ulmoides,the color,pigtnents distribution and content,and active ingredients content in leaf were determined.The front of blade was dark red or purple red of seven red leaf E.ulmoides variation-types,and the palisade tissue was red or dark red.The backs of No.3,5 and 6 were red with red lower epidermis,and those of No.1,2,4 and 7 were green with transparent lower epidermis.The contents of Ca,Cb and CT in seven red leaf were lower than those of in control check leaf,while Ccar,CF content and the value of Ccar/CT and CF/CT were significantly higher than those of in control check leaf,and there were the differences of pigment content between seven red leaf.Five kinds of active ingredients content were high in seven red lea,and the contents of chlorogenic acid,geniposide,and total flavonoids were higher than those of in control check.The distribution and content of CF and the value of CF/CT were the main reasons for different colors of seven red leaf,and the high content of active ingredients made it of great potential in the utilization of medicine.This study would provide materials for ornamental and medicine E.ulmoides resources.