Raman Vijayasankar, Manfron Jane, Avula Bharathi, Zhao Jianping, Katragunta Kumar, Chittiboyina Amar G, Khan Ikhlas A
National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS 38677, USA.
Department of Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, PR 84030-900, Brazil.
Microsc Microanal. 2022 Sep 8:1-17. doi: 10.1017/S1431927622012399.
The raw materials of “licorice root” in the commerce consist of roots and/or rhizomes (stolons) of different species of . Licorice products and raw materials are frequently mislabeled and often have mixed, misidentified, or unidentified species and parts. This paper provides a detailed comparative analysis of the morpho-anatomies of the rhizomes and roots of five species of , namely , , , , and , by bright-field light microscopy and scanning electron microscopy. The studied species showed some similarities in their basic anatomical features due to the fact that they are phylogenetically closely related and belong to the same genus. However, differences in microscopic features such as the thickness of cork and medullary rays, pore frequency, and size of the vessels were observed. The rhizomes can readily be distinguished by the presence of a distinct pith. The roots lack a well-defined pith and instead have primary xylem in the center.
商业中“甘草根”的原材料由不同种甘草的根和/或根茎（匍匐茎）组成。甘草产品和原材料经常被错误标注，且常常含有混合、错误鉴定或未鉴定的物种及部位。本文通过明场光学显微镜和扫描电子显微镜，对五种甘草属植物，即光果甘草、胀果甘草、乌拉尔甘草、刺果甘草和粗毛甘草的根茎和根的形态解剖进行了详细的比较分析。由于所研究的物种在系统发育上密切相关且属于同一属，它们在基本解剖特征上表现出一些相似性。然而，观察到微观特征存在差异，如木栓厚度和髓射线、孔频率以及导管大小。根茎可通过明显髓部的存在很容易区分。根缺乏明确的髓部，取而代之的是中心有初生木质部。
