烟草叶片表面腺毛形态的扫描电镜观察

为探讨烟叶腺毛形态与功能的关系提供部分依据，采用扫描电镜的方法对烟草栽培品种K346叶片表面的腺毛形态和细微结构进行观察。烟草叶片表面长柄腺毛柄部一般有几个比较明显的长柱型节；短柄腺毛的柄部由一个较短的柱形柄构成，短柄腺毛一般较为粗短；烟草腺毛头部的形态比较复杂，是腺毛分泌功能的主要部位，长柄腺毛和短柄腺毛的头部相对于其紧邻的柄部显得膨大，特别是短柄腺毛头部膨大明显，四周呈皱褶状，有明显的凹陷和凸起。烟草叶片表面腺毛形态与其分泌功能有关，腺毛的细微结构可以为其结构与功能的研究提供部分依据。

Observation of Glandular Hairs Morphology on Tobacco Leaves by Scanning Electron Microscopy

In order to supply some information to the study about relations between the morphology and functions of glandular hairs on tobacco leaves, the micro-morphology of glandular hairs on the surface of leaves of the tobacco cultivar Nicotiana tabacum K346 were observed by scanning electron microscopy. The long stalk glandulars on the surface of tobacco leaves commonly have several cylindrical nodes on the parts of stalk, the short stalk glandulars have thicker stalk with one short cylindrical nodes; the head of glandulars, the main of the secretive function parts, which has complex structure with larger than its stalk, especially the head of the short stalk glandular, wrinkly around with obviously convex and concave; The morphlogy of glandular hairs on tobacco leaves have relations with its secretive functions, the information of glandular hairs micro-morphology may benefit to the study on the relation between the function and morphology.