SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION

<p>Knowledge of seed chemical composition is very important in order to understand behavior during germination, storage and metabolic processes involved during reserve degradation, the latter of which affects seed vigor. The objective of this study was to assess changes in carbohydrates, lipid...

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Main Authors: Simone Rodrigues de Magalhães, Eduardo Euclydes de Lima e Borges, Ana Paula de Aguiar Berger
Format: Article
Language:Portuguese
Published: Universidade Federal de Santa Maria 2010-12-01
Series:Ciência Florestal
Subjects:
Online Access:http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/2417
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author Simone Rodrigues de Magalhães
Eduardo Euclydes de Lima e Borges
Ana Paula de Aguiar Berger
author_facet Simone Rodrigues de Magalhães
Eduardo Euclydes de Lima e Borges
Ana Paula de Aguiar Berger
author_sort Simone Rodrigues de Magalhães
collection DOAJ
description <p>Knowledge of seed chemical composition is very important in order to understand behavior during germination, storage and metabolic processes involved during reserve degradation, the latter of which affects seed vigor. The objective of this study was to assess changes in carbohydrates, lipids and proteins<strong> </strong>in the embryonic axis and in cotyledons during germination of S<em>chizolobium parahyba</em>. Seeds were placed in Petri dishes to germinate and samples were removed periodically for analyses. Germination was 88%, starting on the ninth day, and the germination rate was 7.7 seeds.day<sup>-1</sup>. Among fatty acids, oleic acids predominated in the embryonic axis and in cotyledons, with changes occurring during the observation period. The others fatty acids showed little change. The levels of starch and soluble carbohydrate behaved in a similar manner in both compartments with a decrease during the imbibition period. Protein levels in the embryonic axis decreased by the eight day, after increasing for two days. On the other hand, protein levels in cotyledons remained constant during the first two days, decreased on the six day and increased on the eight day.</p>
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spelling doaj.art-e31fdd0da2a649eab2fa9445532a89972022-12-22T01:17:39ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982010-12-0120458959510.5902/1980509824171459SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATIONSimone Rodrigues de Magalhães0Eduardo Euclydes de Lima e BorgesAna Paula de Aguiar BergerUFSM<p>Knowledge of seed chemical composition is very important in order to understand behavior during germination, storage and metabolic processes involved during reserve degradation, the latter of which affects seed vigor. The objective of this study was to assess changes in carbohydrates, lipids and proteins<strong> </strong>in the embryonic axis and in cotyledons during germination of S<em>chizolobium parahyba</em>. Seeds were placed in Petri dishes to germinate and samples were removed periodically for analyses. Germination was 88%, starting on the ninth day, and the germination rate was 7.7 seeds.day<sup>-1</sup>. Among fatty acids, oleic acids predominated in the embryonic axis and in cotyledons, with changes occurring during the observation period. The others fatty acids showed little change. The levels of starch and soluble carbohydrate behaved in a similar manner in both compartments with a decrease during the imbibition period. Protein levels in the embryonic axis decreased by the eight day, after increasing for two days. On the other hand, protein levels in cotyledons remained constant during the first two days, decreased on the six day and increased on the eight day.</p>http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/2417fisiologiabioquímicaembebição
spellingShingle Simone Rodrigues de Magalhães
Eduardo Euclydes de Lima e Borges
Ana Paula de Aguiar Berger
SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
Ciência Florestal
fisiologia
bioquímica
embebição
title SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
title_full SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
title_fullStr SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
title_full_unstemmed SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
title_short SEED RESERVE MOBILIZATION IN THE EMBRYONIC AXIS AND COTYLEDONS OF Schizolobium parahyba (Vell.) S. F. Blake DURING GERMINATION
title_sort seed reserve mobilization in the embryonic axis and cotyledons of schizolobium parahyba vell s f blake during germination
topic fisiologia
bioquímica
embebição
url http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/2417
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