野菊和神农香菊毛状体及叶片表面分泌物的比较  

Comparison of trichomes and their secretion from Dendranthema indicum and D.indicumvar.aromaticum

作　　者：刘颖竹 焦宏彬[1] 杨雪[1] 王欢[1] 刘洋[1] 张彦妮[1] 何淼[1] 

机构地区：[1]东北林业大学园林学院,黑龙江哈尔滨150040

出　　处：《草业科学》2016年第4期615-621,共7页Pratacultural Science

基　　金：黑龙江省自然科学基金面上项目(C2015058);"十二五"国家科技支撑计划课题(2013BAJ12B02)

摘　　要：本研究以野菊(Dendranthema indicum)和神农香菊(D.indicumvar.aromaticum)为研究对象,对比分析了其叶片的表皮毛形态、密度以及叶片表面分泌物种类和含量。结果表明,其叶片表皮毛主要有两种类型,一类是没有分泌功能的T-形非腺毛,一类是具有分泌功能的头状腺毛。T-形非腺毛在上下表皮的密度差异不大,而头状腺毛差异较大,主要集中在叶片的下表皮。两种植物材料叶片表面分泌物里共分析出73种化合物,其中大部分为萜类及其衍生物,共有的化合物有18种;野菊和神农香菊中分别分析出48、43种化合物,分别占分泌物总相对含量的90.96%和84.33%。Morphological structure and trichome density of leaves at different age and position in Dendranthema indicumand D.indicumvar.aromaticum,were compared by analyzing the type and content of the excretion through GC-MS.The results showed that there were two types of glandular trichomes.One was T-shaped nonglandular hairs without the secretion function,and the other was capitate trichomes with the secretion function.There were little difference between upper and lower epidermis on the density of T-shaped non-glandular hairs,while the capitate trichomes were mainly concentrated in the lower epidermis.There were 73 compounds found in the leaf secretion of the two plants,which included mostly terpenoids and their derivatives,and 18 compounds were shared by the two plants.There were 48 and 43compounds identified from D.indicumand D.indicumvar.aromaticum,respectively,and these compounds constituted 90.96%and 84.33%respectively of the total content of leaves surface exudates.

关 键 词：头状腺毛 T-形非腺毛 腺毛密度 叶片表面分泌物 

分 类 号：S682.11[农业科学—观赏园艺] Q944.56[农业科学—园艺学]