为了解和掌握烤烟腺毛分泌细胞中分泌物产生、转运及分泌的过程和规律,通过透射电子显微镜观察了烤烟的长柄腺毛和短柄腺毛分泌细胞的超微结构.结果表明:2种类型腺毛的分泌细胞在超微结构上特性比较相似,但优势细胞器的分布不同,结构完整的发达的叶绿体在长柄腺毛分泌细胞的细胞质内大量存在,可以初步认定叶绿体参与了腺毛分泌产物的生物合成；在2类腺毛中均有大量的内质网、线粒体、液泡和少数的高尔基体,这些细胞器与腺毛的分泌活动有密切的关系.2种腺毛中都观察到细胞间隙和胞质外空间的产生和扩大,以及其中存在的嗜锇物质,2处是分泌产物的临时储藏所,分泌产物在细胞中的分布可得到分泌物的储存和释放途径.%Ultra-structure of the flue-cured tobacco was observed by transmission electron microscope (TEM) to understand and master the process and regulation of generation, transportation and secretion of the secretion from glandular hairs secretory cell of flue-cured tobacco. The results showed that the ultra-structure of the long-stem glandular hairs was very similar to the short-stem glandular hairs, but the distribution of advantageous cell was different and there were plenty of well structured and developed chloroplasts in the long-stem glandular cell. It can be affirmed that chloroplast has been involved in the biosynthesis of glandular secreta. A large amount of endoplasmic, reticulum, mitochondria, vacuole and a few of golgiosome existed in the two kinds of glandular hairs. These organelles were greatly related with the secretory of glandular hairs cell. With the space appearance and expansion of intercellular and cytoplasm external and osmiophilic materials, it was proved that the two places were both temporary storage sites of secreta and the pathway of secreta storage and release can be investigated by observing the secreta's distribution in the cell.
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