MORFOLOGIA DOS FRUTOS, SEMENTES E PLÂNTULAS DE Platonia insigni MART. (CLUSIACEAE). II. MORFO-ANATOMIA DOS FRUTOS E SEMENTES MADUROS

• Autor(a) principal: Mourão, Káthia Socorro Mathias
• Data de Publicação: 1995
• Outros Autores: Beltrati, Celia Massa [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/1809-43921995252046; http://hdl.handle.net/11449/212544
• topic: Platonia insigni Mart; riped fruit and seed; Platonia insigni Mart; fruto e semente maduros

The fruit of Platonia insigniis an unilocular berry; oblate to oblong in shape. The exocarp is uniseriate; the mesocarp is parenchymatic, with branched secretory ducts and vascular bundles. At maturation, the endocarp constitutes the pulpy layer which involves the seed, when it is released from the rest of the pericarp; the inner endocarp cell layers are radially elongated and remain firmly attached to the testai outer layers. The mature seeds are anatropous, becoming unitegmic and exalbuminous; the testa is multiseriate and shows a single rapheal vascular bundle with many postchalazal branches; the tegmen is almost completly crushed, showing only some scattered brachisclereids. The conferruminate embryo is constituted by a thick radicle-hypocotyl axis which is rich in lipids. Secretory ducts occur in the fundamental cortical mer-istem of the embrionary axis.