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药材的生长年限与其质量息息相关,近年来兴起的“草本植物生长轮”被用于判别多年生双子叶草本植物的生长年限。该研究结合常规石蜡切片和徒手切片方法,对芍药Paeonia lactiflora、草芍药P.obovata、川赤芍P.veitchii、美丽芍药P.mairei、窄叶芍药P.anomala、新疆芍药P.sinjiangensis和块根芍药P.anomala var.intermedia 7种植物的根和就地引种栽培芍药的主根进行解剖学研究。结果显示,芍药组7种植物的根在显微结构上存在一定差异,可用于不同种之间的鉴别;芍药组7种植物根的次生木质部中,口径较大的导管和周围的小导管或木纤维聚集呈团块状分布,切向断续排列成与形成层平行的环,均形成清晰的生长轮;吉林四平就地引种栽培的一至四年生的芍药主根中均有生长轮,且与其生长年限一致。该研究报道了芍药组7种植物的生长轮现象,由于野生芍药组植物根中生长轮特点与栽培的芍药类似,因此可为其生长年限提供判别依据,也可为赤芍类药材的质量评价研究奠定基础。
The growth period of medicinal materials is closely related to its quality. In recent years, “Herb Growth Wheel” has been used to determine the growth period of perennial dicotyledonous herbs. Paeonia lactiflora, P.obovata, P.veitchii, P.mairei, P.anomala, P.sinjiangensis, and Radix Paeoniae Alba were studied in this study with conventional paraffin sections and free-hand sections. P.anomala var.intermedia The roots of 7 species of plants and in situ introduction of cultivated peony main roots for anatomical studies. The results showed that there were some differences in the microstructure of the roots of the seven species in the peony group and could be used for the identification of different species. In the secondary xylem of the root of the seven species in the peony group, the larger diameter catheter and the surrounding small catheter Or wood fiber aggregated into a mass distribution, tangentially arranged in parallel with the formation of the ring layer, are forming a clear growth round; Jilin Siping local introduction and cultivation of perennial root growth of peonies are round, and Consistent with their growth years. This study reported the phenomenon of growth rings in 7 species of peony group. Because the characteristics of growth rings in roots of wild peony group were similar to those of cultivated peony, it could provide the basis for determining the growth period and the quality evaluation of Radix Paeoniae Rubra Research laid the foundation.