三个观赏型杜仲无性系叶片色素含量比较  

Comparison of Leaf Pigment Content Among Three Ornamental Eucommia ulmoides Varieties

作　　者：朱景乐[1,2] 李芳东[1,2] 杜红岩[1,2] 王彬[3] 

机构地区：[1]国家林业局泡桐研究开发中心,河南郑州450003 [2]国家林业局杜仲工程技术研究中心,河南郑州450003 [3]河南省林业厅,河南郑州450003

出　　处：《林业科学研究》2014年第4期562-564,共3页Forest Research

基　　金：国家"十二五"科技支撑计划项目(2012BAD21B0502)

摘　　要：杜仲（Eucommia ulmoides Oliv．）是我国特有的经济树种，也是分布范围最广的胶原植物，红叶杜仲是中国林科院经济林研究开发中心选育的具有一定观赏性的杜仲药用优良无性系，其叶片暗红色，与其他无性系差别明显。花色苷是花色素与糖以糖苷键结合而成的一类化合物，广泛存在于植物的花、果实、茎、叶和根器官的细胞液中，使其呈现由红、紫红到兰等不同颜色[2,3]。根据侯元凯对彩叶树种叶片不同颜色的产生原因的描述，叶片颜色主要是由叶片中光合色素种类、含量以及花色苷含量引起。In order to reveal the formation reasons for different colors of ornamental Eucommia leaf, the leaves of Eucommia ulmoides ‘ Hongye’ , E. ulmoides ‘ Miye’ and E. ulrnoides ‘ Xiaoye’ were studied by using freehand section combined with photosynthetic pigments and anthocyanin content measurement. The results showed that for E. ulmoides ＇ Hongye＇ , the front of the blade was dark red while the back was green, the pigment causing redness concentrates on the leaf palisade tissue; among the three varieties, Ca was 1. 100 3 ~ 1. 314 8 mg · g^-1, Cb was 0.4354~0.4670mg·g^-1, CCar was 0.3847~0.4455 mg·g^-1, CT was l.4625~l.781 8mg·g^-l, CF was 0. 140 8 ~ 0.304 2 mg · g^- 1, CCar and CF of E. ulmoides ‘ Hongye’ were significantly higher than that of E. ulmoides ‘ Miye’ and E. ulmoides ＇ Xiaoye＇ , while Cr/Car,, was significantly lower than E. ulmoides ‘ Miye’ and E. ulmoides ‘Xiaoye’ , moreover, the Ca, Cb, Ca/Cb and Cr showed no significant difference between E. ulmoides. ‘ Hongye’ and E. ulmoides ‘ Miye’. The conclusion in this study stated that the anthocyanin and carotenoids contents were higher, which was the main reason for forming red color of E. ulmoides ‘Hongye’.

关 键 词：杜仲 光合色素 花色苷 

分 类 号：S759.3[农业科学—森林经理学]