吴茱萸果实分泌囊发育和精油产生过程的超微结构研究  

ULTRASTRUCTURAL STUDIES ON THE SECRETORY CAVITY DEVELOPMENT AND ESSENTIAL OIL ACCUMULATION IN THE FRUITS OF EVODIA RUTAECARPA

作　　者：刘文哲[1] 张泓[1] 胡正海[1] 

机构地区：[1]西北大学植物研究所

出　　处：《Acta Botanica Sinica》1998年第5期401-404,共4页Acta Botanica Sinica（植物学报：英文版）

摘　　要：吴茱萸（Ｅｖｏｄｉａｒｕｔａｅｃａｒｐａ（Ｊｕｓｓ．）Ｂｅｎｔｈ．）果实分泌囊是通过其原始细胞群的中央细胞之间分离，以裂生方式形成。根据分泌囊发育过程中上皮细胞各细胞器的变化规律分析，质体变化最为明显，其体积和数量逐渐增加，基质中出现嗜锇滴和管状结构，周围有油滴分布，因而认为质体是精油的合成场所。精油合成后，通过质体膜转运到质体周围的光滑内质网或液泡中，然后由内质网膜或液泡膜所包被。最后这些含油的小泡直接与质膜融合，将精油释放至油腔中。The secretory cavity in fruits of Evodia rutaecarpa (Juss.) Benth. developed schizogenously through a separation of the walls of the central initial cells. Electron micrographs revealed that in the early stages of cavity development there was an apparent increase in the number and volume of the plastids in which osmiophilic droplets and tubular elements were observed. This suggested that the essential oils might be synthesized in the plastids. The essential oils were then transported through the plastid membrane to the surrounding endoplasmic reticulum or into the vacuoles, becoming vesicles approaching the plasmalemma, and finally releasing their contents into the oil chamber by plasmalemma invaginations. 

关 键 词：吴茱萸 分泌囊 超微结构 精油 

分 类 号：Q945.65[生物学—植物学]