Study on the Glandular Hairs on Tobacco Leaves

Through the study of the density, development, morphology and structure of the glandular hairs on tobacco K326 regenerating plantlets leaves, it was showed that the density of glandular hairs on immature leaves was higher, and gradually decreased companying the leaves' growth. The glandular hairs were classified into two types: glandular hairs of long stalk and glandular hairs of short stalk. They all originated from the protodermal cells through different division forms. There were some polysaccharides in the secretory cells of the glandular hairs.