Foliar micromorphology of selected medicinal Lamiaceae taxa and their taxonomic implication using scanning electron microscopy,Microscopy Research and Technique

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Foliar micromorphology of selected medicinal Lamiaceae taxa and their taxonomic implication using scanning electron microscopy
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2022-06-18 , DOI: 10.1002/jemt.24179
Wajid Zaman ₁ , Fazal Ullah _{2,

3} , Gaurav Parmar ₄ , Saddam Saqib _{3,

5} , Asma Ayaz ₆ , SeonJoo Park ₁

Affiliation

In this research, 25 medicinally used Lamiaceae species belonging to 20 genera have been studied and identified for the nine disorders. We used scanning electron microscopy (SEM) for qualitative and quantitative morphological character identification. The micromorphological characters observed here were important for distinguishing the studied taxa. The highest medicinal values were reported for Vitex negundo and Scutellaria baicalensis for all considered categories except urinary and otorhinolaryngology disorders. The foliar epidermal anatomical characteristics revealed that the micromorphological features of the Lamiaceae species provide taxonomically significant and accurate identification information to delimitate the family species. Moreover, we focused on both qualitative (epidermal cell shape, stomata type, stomatal pore shape, subsidiary cell shape, glandular trichomes, and non-glandular trichome shape) as well as quantitative features (epidermal cell size, stomata size, stomatal pore size, subsidiary cell size, and trichomes size). The trichomes diversity was different in most species' on adaxial and abaxial surfaces. In most species, anomocytic stomata were observed, but other types such as diacytic, paracytic, and tetracytic type stomata were also examined. The diverse pattern of anatomical characters suggests that the studied taxa provide insight evidence for the taxonomic observation of the Traditional Chinese Medicinal plants from the Lamiaceae. This work sets an avenue for future research and taxonomic exploration of medicinal flora through microscopic investigations.

中文翻译：

选择药用唇形科分类群的叶面微形态及其使用扫描电子显微镜的分类学意义

在这项研究中，对属于 9 种疾病的 20 属 25 种药用唇形科物种进行了研究和鉴定。我们使用扫描电子显微镜 (SEM) 进行定性和定量的形态特征鉴定。这里观察到的微形态特征对于区分所研究的分类群很重要。据报道，黄荆和黄芩具有最高的药用价值除泌尿和耳鼻喉科疾病外的所有考虑类别。叶面表皮解剖特征表明，唇形科物种的微形态特征为划分科物种提供了分类学上重要且准确的识别信息。此外，我们关注定性（表皮细胞形状、气孔类型、气孔孔形状、附属细胞形状、腺毛和非腺毛形状）以及定量特征（表皮细胞大小、气孔大小、气孔大小、辅助细胞大小和毛状体大小）。大多数物种在正面和背面的毛状体多样性不同。在大多数物种中，观察到了异型细胞气孔，但也检查了其他类型的气孔，例如二细胞型、副细胞型和四细胞型气孔。解剖特征的多样性表明，所研究的分类群为唇形科中药材的分类观察提供了深刻的证据。这项工作为通过微观研究对药用植物群进行未来研究和分类学探索开辟了道路。

更新日期：2022-06-18

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