7个变异红叶杜仲叶片色素及活性成分分析  

Pigments and Active Ingredients in Leaves of Seven Eucommia ulmoides Variation-types

作　　者：杜庆鑫[1,2] 庆军 朱景乐[1,2] 杜红岩[1,2] 杜兰英[1,2] 

机构地区：[1]中国林业科学研究院经济林研究开发中心,郑州450003 [2]国家林业局杜仲工程技术研究中心,郑州450003

出　　处：《植物研究》2017年第3期468-473,共6页Bulletin of Botanical Research

基　　金：国家"十二五"科技支撑计划(2012BAD21B0502)~~

摘　　要：为探讨不同变异类型红叶杜仲叶片呈色机理及活性成分含量,以7个不同变异红叶杜仲和绿叶杜仲为材料,对叶片颜色、色素分布、含量及活性成分含量进行测定分析。结果表明:7个变异红叶杜仲叶片正面呈暗红或紫红色,栅栏组织呈红色或暗红色;背面颜色3、5和6号呈红色,下表皮也呈红色,1、2、4和7号为绿色,下表皮透明;7个变异红叶杜仲叶片C_a、C_b和C_T含量均低于对照杜仲叶片,而C_(Car)、C_F含量以及C_(Car)/C_T、C_F/C_T值均显著高于对照叶片,叶片色素含量在7个红叶杜仲间也存在一定差异;7个变异红叶杜仲叶片5种活性成分含量均较高,且绿原酸、京尼平苷和总黄酮含量明显高于对照杜仲叶片。叶片中C_F分布、含量及C_F/C_T值是红叶杜仲呈色差异的主要原因,高活性成分含量使其在药用方面有很大的开发利用潜力。本研究可为观赏兼药用杜仲资源选育提供材料。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 variation- types and one green leaf E. ulmoides, the color, pigments 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. ulmoicles 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 Cr 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 Cr 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.

关 键 词：红叶杜仲 叶片 色素 活性成分 

分 类 号：Q949.751.5[生物学—植物学]