Secretory spaces in species of the clade Dipterygeae (Leguminosae, Papilionoideae)

Autor(es)

Fernanda Helena Palermo ^[1] ; Simone de Pádua Teixeira ^[2] ; Vidal de Freitas Mansano ^[3] ; Viviane Gonçalves Leite ^[4] ; Tatiane Maria Rodrigues ^[5]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista. Departamento de Botânica. Instituto de Biociências de Botucatu - Brasil

^[2] Universidade de São Paulo. Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Brasil

^[3] Instituto de Pesquisas Jardim Botânico do Rio de Janeiro - Brasil

^[4] Universidade de São Paulo. Faculdade de Ciências Farmacêuticas de Ribeirão Preto. Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - Brasil

^[5] Universidade Estadual Paulista. Departamento de Botânica. Instituto de Biociências de Botucatu - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Acta Botanica Brasilica; v. 31, n. 3, p. 374-381, 2017-01-30.

Resumo

ABSTRACT Dipteryx, Pterodon and Taralea are legume genera known for secreting oils, produced in secretory canals and cavities, with medicinal properties. We analyzed the distribution, morphology and histochemistry of these glands in leaves and stems of Dipteryx alata, Pterodon pubescens and Taralea oppositifolia, three Neotropical species, using standard techniques for anatomy and histochemistry. Secretory spaces, i.e. secretory cavities and canals, exhibited a wide lumen and a single layer of epithelium. Digitiform epithelial cells, forming trabeculae protruding into the lumen, were seen in all three species. Secretory cavities with a rounded or oval lumen and secretory canals with an elongated lumen in longitudinal sections were found only in T. oppositifolia. In D. alata and P. pubescens, only secretory cavities were found. In P. pubescens, secretory cavities occurred in the leaf blade margin. In T. oppositifolia, secretory spaces were much more numerous than in the other two species. Terpenes, total lipids, phenolic compounds, alkaloids and polysaccharides were detected in the secretory spaces of the three species. The abundance of secretory spaces, the presence of canals in T. oppositifolia and the position of cavities in P. pubescens are features with potential diagnostic value for their respective genera. (AU)

• Processo FAPESP: 12/15644-8 - Desenvolvimento da flor e da inflorescência de espécies de Moraceae
• Beneficiário: Viviane Gonçalves Leite
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 08/55434-7 - Estruturas secretoras em espécies vegetais de cerrado: abordagens morfológica, química e ecológica
• Beneficiário: Silvia Rodrigues Machado
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático