Morfoanatomia do cotilédone em desenvolvimento de Euterpe oleracea mart.

Abstract

In this work a study was carried out on the developm ent of the haustorial cotyledon in Euterpe o leracea Mart.. The results presented herein are intended to promote baseline studies and possibly future proteomic analysis of haustorial cotyledon will be useful by proteomic . Seed morphology studies were carrie d out at six stages of development, as well as light microscopy and histochemical tests for starch, proteins and lipids. The results showed that the haustorial cotyledon stores a large amount of starch, but protein bodies and lipids were found in a succinc t and less evident way, although a possible protein activity in the protoderm region was evidenced. The anatomy of the cotyledon has shown that parenchyma cells lose their intracellular space during development and the protoderm does not show differences i n their cellular structure. The studies carried out here will promote research on the development of the seed of an important species for the Brazilian economy.