Comparative study of external-intenal morphological shape in origins and hybrids for Glycyrrhizae Radix et Rhizoma

Young-Sik Kim, Chun-Geon Park, G. Choi, Jae-Ki Chang, J. Lee, Young-sung Ju
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引用次数: 2

Abstract

Objectives : The consumption of licorice is large in Korea, but domestic production is insufficient due to the lack of adaptability. This study aimed to provide a morphological basis for adding interspecific hybrid licorice with improved adaptability to pharmacopoeia. Methods : This study was to establish identification criteria for the original plants, external and internal morphology of the authentic herbal medicines (Glycyrrhiza uralensis, G. glabra and G. inflata), market products and artificially interspecific hybrid forms of licorice. For this purpose, previous studies were investigated and visual and histological observations were carried out. We focused on the internal morphology by microscopic observation for securing objectivity. Finally, we proposed the identification keys for precise classification of each part. Results : 1) Original plant : Licorice species in the compendium were distinguished by the number of leaflets, presence of hair on the fruit, curvature and swelling of the fruit. 2) External morphology : Licorice species were distinguished by degree of powderiness, tearing gap, radial structure in the cross section and existence of protrusion of outer epidermis. 3) Internal morphology : Licorice species were distinguished by the degree of development of phloem fiber bundle, development of obliterated sieve, whether the secondary medullary ray are branched. In the case of interspecific hybrids, the characteristics of both species used for hybridization were mixed in all observation methods. Conclusions : These results suggest that the interspecific crossbred licorice is suitable for the pharmacopoeial standard. Therefore, it can be applied as a herbal medicine through additional supplementary study.
甘草源与杂交种内外形态的比较研究
目的:韩国甘草消费量大,但由于适应性不足,国内产量不足。本研究旨在为添加种间杂交甘草提高药典适应性提供形态学依据。方法:建立正宗药材甘草(glycyrhiza uralensis, G. glabra, G. inflata)、市场产品和人工种间杂交甘草的原植物、内外形态鉴别标准。为此,我们调查了以往的研究,并进行了视觉和组织学观察。为了保证客观性,我们通过显微观察来关注内部形态。最后,提出了对各部件进行精确分类的识别关键字。结果:1)原植物:通过小叶数量、果实上是否有毛、果实的弯曲和膨大来区分本纲目中甘草的种类。2)外表皮形态:甘草品种以粉末状程度、撕裂间隙、横截面呈放射状结构、外表皮是否有突出来区分。3)内部形态:通过韧皮部纤维束的发育程度、残筛的发育程度、次生髓线是否有分支来区分甘草种类。在种间杂交的情况下,所有观察方法都混合了用于杂交的两个物种的特征。结论:种间杂交甘草符合药典标准。因此,通过进一步的补充研究,它可以作为草药应用。
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