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Title: | Alterations in the lipid and soluble sugar content of Melanoxylon brauna seeds during natural and accelerated ageing |
Other Titles: | Alterações no conteúdo de reservas em sementes de Melanoxylon brauna durante o processo de envelhecimento natural e acelerado |
Authors: | Corte, Viviana Borges e Borges, Eduardo Euclydes de Limae E. Gonçalves, José Francisco de Carvalho Silva, Mirian Sousa |
Keywords: | Caesalpinioideae Fabaceae Melanoxylon Brauna |
Issue Date: | 2010 |
metadata.dc.publisher.journal: | Revista Brasileira de Sementes |
metadata.dc.relation.ispartof: | Volume 32, Número 3, Pags. 152-162 |
Abstract: | The decay of seeds is irreversible and at best can only be delayed by applying techniques that reduce the velocity of the metabolic reactions involved. There is little information on the biochemistry of tropical forest tree seeds related to their storability. It was investigated the influence of the composition of lipids and soluble sugars of two storage compartments, the cotyledons and the embryonic axis, of Melanoxylon brauna Schot. (Leguminosae- Caesalpinioideae), a hardwood known as black brauna, seeds stored at 20 °C for 0, 3, 6, 9 and 12 months (natural ageing) and for 0, 24, 48, 72 and 96 hours at 40 °C (accelerated ageing). The levels of fatty acids and monosaccharides varied differentially in each of the embryo storage compartments. Changes in oligosaccharide levels were similar for both types of ageing, diminishing in both compartments. Ageing can be attributed to the significant decrease of oligosaccharides and the increase of glucose in both types of ageing and both embryo compartments. |
metadata.dc.identifier.doi: | 10.1590/S0101-31222010000300017 |
Appears in Collections: | Artigos |
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