Planta Med
DOI: 10.1055/s-0043-119226
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

Comparison of the Morphology, Anatomy, and Chemical Profile of Mikania glomerata and Mikania laevigata

Vanessa Cruz de Oliveira Costa1, Alexandre Augusto Borghi1, Juliana Lischka Sampaio Mayer1, Alexandra Christine Helena Frankland Sawaya2
  • 1Institute of Biology, State University of Campinas, Campinas, Brazil
  • 2Faculty of Pharmaceutical Science, State University of Campinas, Campinas, Brazil
Further Information

Publication History

received 08 May 2017
revised 23 August 2017

accepted 29 August 2017

Publication Date:
19 September 2017 (eFirst)

Abstract

Mikania glomerata and Mikania laevigata are medicinal plants popularly used in Brazil for colds and asthma. Although several studies report differences in their composition, they are frequently used indistinctly, which may be due to misidentification of the species or the plant part used. Herein, the chemical, anatomical, and morphological profiles of both species were evaluated, seeking to differentiate them. Due to the pattern of secondary metabolites found in M. glomerata and M. laevigata, the chemical profile of the leaves was the characteristic that best differentiated the two species. Coumarin was present in all the leaf samples of M. laevigata but absent or in low concentration in leaf samples of M. glomerata. The stems presented coumarin in both species, albeit in different concentrations. The quantification of chlorogenic and dicaffeoylquinic acids was crucial for the separation of the two species, as higher concentrations are found in M. glomerata. The anatomic structure of the leaves, stem, and petioles of both species was conserved, even when exposed to different environments, but presented only subtle differences between species. The morphology of the leaves presented different characteristics for each species but altered when exposed to shade. Therefore, the chemical analysis together with the morphological characteristics of plants grown in full sunlight may be used for the correct identification of these species.

Supporting Information