Journal of Food, Agriculture and Environment

Seed and seedling anatomy in Euterpe oleracea Mart. during the germination process

Author(s):

Marco Antônio Menezes Neto ^1*, Allan Klynger da Silva Lobato ², José Donizeti Alves ³, Patrícia de Fátima Pereira Goulart ⁴, Haywood Dail Laughinghouse IV ^{5, 6}

Recieved Date: 2010-01-08, Accepted Date: 2010-04-08

Abstract:

The aim of the study was to investigate the seed and seedling anatomy, as well as to identify the reserve degradation pathway during the germination process in Euterpe oleracea seeds. Longitudinal and transversal sections of endosperm and embryo seeds, as well as transversal sections of different parts of the seedling were analyzed. The seeds are ruminated with the endosperm formed by cells of several sizes and forms, as well as by presenting very large walls and pits. The embryo is formed by a hypocotyl-radicle axis, procambium and parenchyma with several idioblasts composed of raphides. The seed endosperm has the hypocotyl base and haustorium as sites of starch accumulation. The results obtained by scanning and transmission electron microscopy demonstrate that the endosperm cells present several pits with plasmodesma connections and the haustorium can regulate the endosperm degradation process. Seedling sections between the endosperm and haustorium indicate that the testa projections can have the function of transport during the degradation process of the endosperm reserves.

Keywords:

Euterpe oleracea Mart., seed, endosperm, reserve, degradation

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Journal: Journal of Food, Agriculture and Environment
Year: 2010
Volume: 8
Issue: 2
Category: Environment
Pages: 1147-1152

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