Zhao Yujiao, Zha Liangping, Han Bangxing, Peng Huasheng
College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.
Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, China.
Microsc Res Tech. 2018 Oct;81(10):1191-1202. doi: 10.1002/jemt.23117. Epub 2018 Nov 8.
Shihu is a famous Chinese Materia Medica derived from species of the Dendrobium. In order to differentiate 24 Dendrobium species, microscopic features of the 24 Dendrobium species were systemically observed, including the trend of vascular bundle number with different internodes and the transverse section characteristics of stem. The results indicate that the thickness of cuticle, the level of thickening of epidermal cells and cell types, the number of vascular bundles, the shape of vascular bundle sheath, the type and distribution of calcium oxalate crystals, the presence or absence of silica masses can be used to authenticate the 24 Dendrobium species. In addition, the number of vascular bundles in stems of 24 Dendrobium species also have changed at different internodes, and showed a trend of first increasing and then decreasing. For some specific species, the vascular bundle numbers had typical differences, which can provide some support for the identification of Dendrobium plants. Thus, using the multiple microscopic characteristics of stems can identify the Dendrobium plants effectively and quickly.
石斛是一种源自石斛属植物的著名中药材。为鉴别24种石斛属植物，系统观察了这24种石斛属植物的显微特征，包括不同节间维管束数量的变化趋势以及茎的横切面特征。结果表明，角质层厚度、表皮细胞增厚程度和细胞类型、维管束数量、维管束鞘形状、草酸钙晶体类型和分布、硅质块的有无可用于鉴别这24种石斛属植物。此外，24种石斛属植物茎中的维管束数量在不同节间也有所变化，呈现出先增加后减少的趋势。对于某些特定物种，维管束数量存在典型差异，可为石斛属植物的鉴定提供一定支持。因此，利用茎的多种显微特征能够有效且快速地鉴定石斛属植物。
