Abstract

Background: Croton cordiifolius Baill. is popularly known as “quebra-faca” in the Brazilian Northeast and is used to treat general inflammation, pain, and gastrointestinal disturbances. Objective: This paper aims to study the anatomical characteristics of C. cordiifolius. Materials and Methods: Cross-sections and paradermic sections of root, stem, petiole and leaf blade were obtained by hand and submitted to double staining with astra blue and safranin process for the anatomical study. Maceration was performed according to the method of Jeffrey. Results: The secondary root has peridermis, parenchymatic cortex, collateral vascular system surrounded by sclerenchyma. The secondary stem has peridermis, cortical region with lignified cells, isolated groups of fibers, laticifers, prismatic crystals, druses and starch. The vascular system of the stem is bicollateral. The petiole and the leaf blade have stellate, simple and glandular trichomes. The leaf blade is hypostomatic, with paracytic stomata. The mesophyll is isobilateral and the midrib shows a concave-convex contour. Laticifers occur in stem, petiole and leaf blade. Prismatic crystals and druses are found in all organs analysed. Through the maceration it was possible to identify the type of vessel elements. Conclusion: The anatomical features are useful for differentiation of other species of Croton and provide support to their quality control.

Highlights

  • Caatinga ecosystem, covering almost one million km[2] in Brazilian Northeast, is characterized by xerophytic vegetation affected by long and irregular drought, high temperatures and elevated ultraviolet radiation

  • This paper aims to study the anatomical characteristics of C. cordiifolius

  • Since the correct species identification is a relevant step for researches reproducibility and the standardization of morphoanatomic markers is one of the parameters required for quality control of herbal raw material or drugs, this paper aims to study the anatomical characteristics of the root, stem, petiole and leaf blade of C. cordiifolius

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Summary

Introduction

Caatinga ecosystem, covering almost one million km[2] in Brazilian Northeast, is characterized by xerophytic vegetation affected by long and irregular drought, high temperatures and elevated ultraviolet radiation. It is an exclusively Brazilian biome and its plants are widely used in folk medicine of local communities, whose socio-demographic conditions favor this reality.[1,2]. Materials and Methods: Cross-sections and paradermic sections of root, stem, petiole and leaf blade were obtained by hand and submitted to double staining with astra blue and safranin process for the anatomical study. Laticifers occur in stem, petiole and leaf blade. Conclusion: The anatomical features are useful for differentiation of other species of Croton and provide support to their quality control

Objectives
Methods
Results

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