Anatomic and micromorphological characters of foliar epidermis of Emilia sonchifolia (L.) DC. ex Wight. (Asteraceae)

• Autor(a) principal: Furlan, Marcos Roberto
• Data de Publicação: 2022
• Outros Autores: Aoyama, Elisa Mitsuko, Elias, Letícia
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Fitos
• Texto Completo: http://revistafitos.far.fiocruz.br/index.php/revista-fitos/article/view/1171
• topic: Plant anatomy; Asteraceae; Medicinal plants; Serralhinha; Leaf surface; Anatomia Vegetal; Asteraceae; Plantas medicinais; Serralhinha; Superfície foliar

The use of medicinal plants is as old as civilizations. However, regionalities and synonyms often lead to the misuse of these plants. Thus, the objective of the study was to describe the anatomy and micromorphology of the leaf epidermis of Emilia sonchifolia (L.) DC. ex Wight. (Asteraceae) to contribute to the correct identification of the species. The plant material was collected at the Federal University of Espírito Santo, and five fully expanded leaves were collected from five individuals. For micromorphological analysis, the material was fixed in FAA 50 and dehydrated in an ethyl series. The analysis and digitalization of the images were carried out using a scanning electron microscope. For anatomical analysis, the material was fixed at FAA 50 and subsequently transferred to 50% alcohol. Paradermic sections of the leaf surfaces were made, such as which were stained with alcian blue and safranin. Epidermal cells with sinuous cell walls, anomocytic and anisocytic stomata were found on both surfaces, in addition to large pluricellular trichome trichomes. SEM analyzes showed epicuticular wax deposition on both surfaces. It is concluded that the long pluricellular trichome trichomes, the anomocytic and anisocytic stomata are a set of characters that allow the identification of E. sonchifolia.