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ANÁLISE FOTÔNICA E ULTRA-ESTRUTURAL DA EPIDERME FOLIAR DE Galinsoga parviflora CAV. E G. ciliata (RAF.) BLAKE, ASTERACEAE
Author(s) -
Márcia do Rocio Duarte,
Juliano Ferreira Lopes
Publication year - 2004
Publication title -
visão acadêmica
Language(s) - English
Resource type - Journals
eISSN - 1518-8361
pISSN - 1518-5192
DOI - 10.5380/acd.v5i1.541
Subject(s) - biology , ciliata , epidermis (zoology) , botany , ultrastructure , asteraceae , primordium , anatomy , protozoa , biochemistry , gene
Galinsoga parviflora Cav. e G. ciliata (Raf.) Blake sao herbaceas medicinais, empregadas popularmente no tratamento de ulceracoes cutâneas e disturbios hepaticos. Este trabalho teve por objetivo caracterizar a epiderme foliar dessas especies, por meio de analise fotonica e ultra-estrutural. Folhas adultas foram fixadas e submetidas a tecnicas usuais de microscopia fotonica e de varredura. Ambas as especies apresentam epiderme foliar uniestratificada e revestida por cuticula delgada e levemente estriada. Em vista frontal, as celulas epidermicas revelam contorno sinuoso e estomatos anomociticos ocorrem em ambas as superficies. Tricomas tectores pluricelulares e unisseriados predominam na face adaxial. Esse anexo epidermico e comparativamente mais numeroso em G. ciliata. OPTICAL AND ULTRASTRUCTURAL ANALYSIS OF THE LEAF EPIDERMIS OF Galinsoga parviflora CAV. AND G. ciliata (RAF.) BLAKE, ASTERACEAE Abstract Galinsoga parviflora Cav. and G. ciliata (Raf.) Blake are medicinal herbs, popularly employed for treating cutaneous ulcers and hepatic insufficiency. This work has aimed to characterize the leaf epidermis of these species, by means of optical and ultrastructural analysis. Mature leaves were fixed and undergone usual optical and scanning microtechniques. Both species have got uniseriate leaf epidermis, coated by thin and slightly striated cuticle. In face view, the epidermal cells show sinuous contour and anomocytic stomata are seen on both surfaces. Pluricellular and uniseriate non-glandular trichomes predominate on the upper side. This epidermal appendage is comparatively more frequent in G. ciliata.

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