论文部分内容阅读
目的:阐明苦参中“环状年轮”的结构特征及异常构造的产生,进一步讨论苦参的药用部位问题。方法:对苦参的根系及药材进行实地调查,并对其根系进行形态观察和发育解剖学研究。结果:北方部分地区生长的苦参存在横走根状茎(文中统称为“根状茎”),其与根在外观和显微特征方面都存在差异;根中的异常结构是由于次生木质部中产生了大量薄壁细胞,其中一些薄壁细胞恢复分生能力转化为异常形成层所产生;苦参横切面中的“环状年轮”与生长轮无关,从外向内依次是由韧皮纤维束呈断续的环、形成层环,以及次生木质部中的薄壁细胞环带组成。结论:苦参的入药部位为根;建议苦参饮片中“环状年轮”的描述改为“环状结构”。
OBJECTIVE: To elucidate the structural features and abnormal structure of “ring ring” in Sophora flavescens, and to discuss further the medicinal site of Sophora flavescens. Methods: The root and medicinal materials of Sophora flavescens were investigated on the spot, and its root morphology and anatomy were studied. Results: The root of Sophora flavescens grown in some parts of northern China had horizontal root-rhizome (herein referred to as “rhizome”), which differed in appearance and microscopic characteristics with the root; the abnormal structure in the root was due to the secondary In the xylem, a large number of parenchyma cells were produced, of which some parenchyma cells were transformed into abnormal layers. The “ring-shaped rings” in the transverse section of S. mandshurica have nothing to do with the growth rings. Is composed of bast fiber bundles intermittent ring, the formation of ring, and the secondary xylem in the parenchyma cell ring composition. Conclusion: The root of Sophora flavescens is root. It is suggested that the description of “ring ring” in “Kushen Decoction” should be replaced by “ring structure”.