银杏雌树长枝不同叶位叶萜内酯含量变化及分布规律  

Annual variation and distribution rule of terpene lactone content in Ginkgo biloba among leaves from different positions of female long-branch

作　　者：廖咏玲[1,2] 程水源[3] 许锋[2] 王燕 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]长江大学园艺园林学院,湖北荆州434025 [3]黄冈师范学院经济林木种质改良与资源综合利用湖北省重点实验室,湖北黄冈438000 [4]湖北省林业厅科教处,湖北武汉430079

出　　处：《中南林业科技大学学报》2013年第11期47-52,共6页Journal of Central South University of Forestry & Technology

基　　金：湖北省自然科学基金创新群体项目(2011CDA117);湖北省自然科学基金(2006ABA005);湖北省教育厅高校产学研合作项目(CXY2009B009);湖北省科技攻关重大项目(2004AA204B03)

摘　　要：为研究不同叶位银杏叶萜内酯含量的动态变化规律,对雌树长枝不同叶位叶萜内酯含量的年周期变化进行了测定。结果表明:不同叶位银杏叶的银杏内酯A(GA)、银杏内酯B(GB)、银杏内酯C(GC)、白果内酯B(BB)和总萜内酯含量变化规律基本一致,均为先上升到达最高峰后迅速下降;对BB而言,在最高峰(8月18日)时,顶部叶含量显著高于中部叶和基部叶;对GA、GB、GC和总萜而言,在含量最高峰(9月18日)时基部叶含量高于中部叶和顶部叶。说明不同叶位对银杏叶萜内酯含量有影响。In order to study the change law of terpene lactone of leaves from different positions in Ginkgo biloba, the annual variations of terpene lactone contents of the leaves from different positions of female long-branch were investigated. The results show that the total terpene trilactones content, ginkgolides A（GA）, ginkgolides B（GB）, ginkgolides C（GC） and bilobalide（BB） contents in G. biloba leaves from different positions appeared similarity pattern, which increased gradually at first, then reached a peak, and subsequently decreased rapidly. For bilobalide, the highest level was in the top leaves on August 18 significantly higher than those in the middle and up leaves. The up leaves was higher than the middle and top leaves at the highest value of contents of ginkgolides A, ginkgolides B, ginkgolides C and the total terpene lactone on September 18. All these indicate that the leave position had effects on the terpene lactone content in leaves of G. biloba.

关 键 词：银杏叶 萜内酯含量 含量变化及分布规律 叶位 长枝 

分 类 号：S759.3[农业科学—森林经理学]