Aerial stem and leaf morphoanatomy of some species of Smilax

Author(s)

Aline R. Martins ; Aline B. Bombo ^[1] ; Anielca N. Soares ^[1] ; Beatriz Appezzato-da-Glória ^[4]

Affiliation

^[1] Univ Sao Paulo, Dept Ciencias Biol, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

^[2] Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz. Departamento de Ciências Biológicas - Brasil

• Document type: Journal article
• Source: REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY; v. 23, n. 4, p. 576-584, 2013-06-07.

Abstract

This study aimed to describe the morphoanatomy of the aerial vegetative organs of seven Smilax species, used in Brazilian folk medicine. Samples of leaves and stems were fixed with FAA 50, embedded in historesin, sectioned on a rotary microtome, stained and mounted in synthetic resin. Cuticle ornamentation was analyzed with standard scanning electron microscopy. In the frontal view, the walls of the adaxial epidermis are straight in S. brasiliensis, S. cissoides, S. goyazana and sinuous in the other species. The walls of the epidermis on the abaxial surface are straight in S. brasiliensis, S. goyazana, S. rufescens, sinuous in S. campestris, S. fluminensis, S. oblongifolia, and wavy in S. cissoides. The stomata are paracytic in S. brasiliensis, S. goyazana, S. oblongifolia, and S. rufescens, anomocytic in S. cissoides, S. campestris; anisocytic and paracytic in S. fluminensis. The midrib has three vascular bundles that are individually wrapped by lignified cells in S. brasiliensis, S. cissoides, and S. fluminensis. In the other, the three vascular bundles are surrounded by a single lignified sheath. In the stems the vascular cylinder is surrounded by a sclerenchymatous ring with the exception of Smilax fluminensis, which has a starch sheath and internal layers of thin-walled cells. (AU)

• FAPESP's process: 05/58964-9 - Morphoanatomy of the vegetative organs and chemical profile of species of the Smilax L. (Smilacaceae) genus
• Grantee: Beatriz Appezzato da Glória
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants
• FAPESP's process: 05/54984-5 - Morphoanatomy of the vegetative organs and chemical profile of species of Smilax L. (Smilacaceae) genus
• Grantee: Aline Redondo Martins
• Support Opportunities: Scholarships in Brazil - Doctorate