Open AccessComparative morphoanatomical analysis of Mikania species
Author(s) -
Valter Paes de Almeida,
Adriana Araci Hirt,
Paola Aparecida Raeski,
Beatriz Eloise Mika,
Bárbara Justus,
Vera Lúcia Pereira dos Santos,
Célia Regina Cavichiolo Franco,
Josiane Padilha de Paula,
Paulo Vítor Farago,
Jane Manfron Budel
Publication year - 2017
Publication title -
revista brasileira de farmacognosia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 46
eISSN - 1981-528X
pISSN - 0102-695X
DOI - 10.1016/j.bjp.2016.05.002
Subject(s) - pith , trichome , asteraceae , petiole (insect anatomy) , botany , biology , mikania micrantha , invasive species , genus
Mikania belongs to the Asteraceae family and includes a wide range of promising pharmacological activities. Several species of Mikania, which is popularly known in Brazil as “guaco”, occur in Southern Brazil and their external morphology is similar. The aim of this study was to investigate the morpho-anatomical characteristics of the leaf and stem of Mikania campanulata, Mikania cordifolia, Mikania glomerata, Mikania hastato-cordata, Mikania microptera and Mikania sessilifolia as a means of providing additional support for differentiating these taxa. The leaves and stems were investigated by employing scanning electron microscopy and light microscopy techniques. The morphological features of Mikania spp. leaves make it possible to differentiate between the species; nevertheless, when the plants were fragmented or pulverized the anatomical features of the leaves and stems supplied additional helpful data in this regard. The main anatomical characteristics were presence of hypodermis and lens shaped epidermal cells, set of trichomes; midrib, petiole and stem shape and vascular pattern; sclerenchymatous ring in the cortex, sclerenchymatous cells and secretory ducts in the pith