Chu Shan-Shan, Zha Liang-Ping, Duan Hai-Yan, Xu Tao, Peng Hua-Sheng
School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China.
Institute of Traditional Chinese Medicine Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei 230012, China.
Zhongguo Zhong Yao Za Zhi. 2017 Oct;42(19):3723-3727. doi: 10.19540/j.cnki.cjcmm.2017.0147.
The growth years of medicinal materials are closely related to their quality, and "Herb-chronology" has been used to determine the growth years of perennial dicotyledonous plants in recent years. On the basis of conventional paraffin section and freehand section, the anatomical study on roots of seven Sect. Paeonia species and main roots of cultivated Paeonia lactiflora was conducted in this paper. The results showed that, there existed some differences in microstructure of the seven species such as P. lactiflora, P. obovata, P. veitchii, P. mairei, P. anomala, P. sinjiangensis and P. anomala var. intermedia, and this could be used to distinguish different species. In the roots of seven Sect. Paeonia species, distinct growth rings were formed because that the different diameters or density of xylem vessels in the secondary xylem formed clusters and arranged interrupted rings in tangential direction. There were growth rings in the main roots of P. lactiflora cultivated 1-4 years in Siping, Jilin, which were all consistent with their growth years. Due to the similar growth characteristics between wild Sect. Paeonia species and cultivated P. lactiflora, the growth rings can provide a basis for the age identification and lay the foundation for the quality evaluation of Paeoniae Radix Rubra.
药材的生长年限与其品质密切相关，近年来“本草年代学”已被用于确定多年生双子叶植物的生长年限。本文在常规石蜡切片和徒手切片的基础上，对芍药属7个组植物的根及栽培芍药主根进行了解剖学研究。结果表明，芍药、草芍药、川赤芍、美丽芍药、窄叶芍药、新疆芍药和块根芍药7种植物的根在微观结构上存在差异，可用于区分不同物种。在芍药属7个组植物的根中，次生木质部中不同直径或密度的导管成群分布并在切向排列成间断的环，从而形成明显的生长轮。在吉林四平栽培1 - 4年的芍药主根中存在生长轮，且均与其生长年限一致。由于野生芍药属植物与栽培芍药生长特性相似，生长轮可为其年龄鉴定提供依据，为赤芍的品质评价奠定基础。
