蕤核茎解剖结构和组织化学定位研究  

Anatomical Structure and Histochemical Localization of the Stem of Prinsepia uniflora Batal.

作　　者：马茵[1] 邓荣华[1] 王慧[1] 郭晓宏[1] 陈婧[1] 朱广龙[1] 魏学智[1] 

机构地区：[1]山西师范大学生命科学学院,山西临汾041004

出　　处：《中国野生植物资源》2015年第2期17-20,共4页Chinese Wild Plant Resources

基　　金：国家自然科学基金(30972396;31300157);山西省自然科学基金项目资助(2009011041-1)

摘　　要：采用解剖学和组织化学法,研究蕤核(Prinsepia uniflora Batal.)茎的显微结构,并对茎中的黄酮类、生物碱类及多糖的组织化学定位进行了研究。研究表明:蕤核幼茎表皮细胞的细胞壁厚,木质部含有较多的导管,初生木质部为内始式发育,维管束在横切面上呈"V"形,茎中髓部发达;老茎有突起的皮孔,次生维管组织呈一个完全闭合的环状。组织化学定位显示黄酮,生物碱,糖类和脂类物质多分布于皮层。The methods of anatomy and histochemistry were used to research the anatomical structure and histochemical localization of flavonoids, alkaloids and polysaeeharides of the stem of Prinsepia uniflora Batal. The results showed that the structure of the stem of P. uniflora Batal. was as follows ： The young stem of Prinsepia uniflora Batal. cell wall thickness of the epidermal cells, contains more vessels in xy- lem, primary xylem within the beginning of development, vascular bundles in transverse section was ＂V＂ shaped. The pith of stem was developed. While the mature stem has protruding lenticels. Secondary vas- cular tissue was a completely closed ring. Histoehemieal localization showed that flavonoids, alkaloids, sugar and lipid throughout the cortex.

关 键 词：蕤核 茎 结构 组织化学 黄酮 生物碱 多糖 脂类 

分 类 号：Q944.55[生物学—植物学] Q944.62