小驳骨显微性状与鉴定的研究进展

Research Progress on Character and Microscopic Identification of The Gendarussa vulgaris Nees

目的:本研究旨在通过石蜡切片、临时水装片等技术,识别并评估爵床科小驳骨的显微性状。结果:研究表明,小驳骨内部具有明显的层状结构,并且具有丰富的木质部,而且在中央还可以观察到髓。在较老的根部,有略薄的木栓层,存在形似根被的结构。茎最外端为复表皮,内皮层较为凸显,石细胞呈现不连贯环状,薄壁细胞内部可清晰看见分散的的细小草酸钙方晶或柱晶。茎、叶的表皮细胞含钟乳体与直轴式气孔,具有腺鳞,叶片栅栏组织较短,且通过中脉。结论:通过此次研究结果可为小驳骨的显微研究与鉴定提供些许资料。

Objective:The purpose of this study was to identify and evaluate the microscopic characteristics of the Gendarussa vulgaris Nees of the Acanthaceae family by paraffin sections,temporary water loading and other techniques.Results:Studies have shown that there is an obvious layered structure inside the Gendarussa vulgaris Nees,and it has a rich xylem,and the pulp can be observed in the center.In the older roots,there is a slightly thinner cork layer and a root-like structure.The outermost end of the stem is the compound epidermis,and the endodermis is more prominent.The stone cells show an incoherent ring,and the dispersed fine calcium oxalate crystals or columnar crystals can be clearly seen inside the parenchyma cells.The epidermal cells of stems and leaves contain clock-milk and straight-axis stomata,with glandular scales,leaf palisade tissue,and through the midrib.Conclusion:The results of this study can provide some information for the microscopic study and identification of small bone.