Secretory Structures and Their Relationship to Accumulation of Camptothecin in Camptotheca acuminata (Nyssaceae)

编号 zgly0000345290

文献类型 期刊论文

文献题名 Secretory Structures and Their Relationship to Accumulation of Camptothecin in Camptotheca acuminata (Nyssaceae)

作者 LIUWen-Zhe 

作者单位 CollegeofLifeSciences 

母体文献 Acta Botanica Sinica;植物学报: 英文版 

年卷期 2004,46(10)

页码 1242-1248

年份 2004 

分类号 Q946 

关键词 分泌结构  累积  喜树碱  荧光显微镜  植物 

文摘内容 Camptotheca acuminata Decne. (Nyssaceae) is a major source of the anticancer camptothecin (CPT). It is important to understand how CPT accumulates in C.acuminata in order to improve CPT production strategies. The aim of this study was to anatomically and morphologically characterize the secretory structure in leaves and stems of C.acuminata and determine their relationship to accumulation of OPT. Secretory canals and glandular trichomes were found in young stems and young leaves. Secretory canals consisted of a sub-epidermal canal delimited by one to two layers of cells. Glandular trichomes were unicellular. Fluorescence microscopy and OPT analysis showed that OPT was primarily accumulated in secretory canals and glandular trichomes of leaves and stems。