2011
DOI: 10.1590/s0101-31222011000300018
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Reserve mobilization during imbibition of stored Gliricidia sepium (Jacq.) Steud. (Leguminosae - Papilionoideae) seeds

Abstract: -Gliricidia sepium is a drought-tolerant species, easily multiplied by seeds, and has been exploited by farmers as a source of forage in the semi-arid region of northeast Brazil. The objective of the present study was to evaluate the effect of seed storage on the mobilization of reserves during imbibition of "Gliricidia" seeds. Freshly-harvested seeds were packed in kraft paper bags and stored for three and six months in the laboratory under ambient conditions (25 º C ± 3 T and 75% ± 3 RH). Cotyledons were iso… Show more

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Cited by 2 publications
(5 citation statements)
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“…Segundo COSTA et al (2005) Há evidências de que a presença de açúcares não reduzidos estabiliza membranas de sementes secas e os açúcares solúveis atuariam como substitutos da água, desempenhando importante papel na tolerância à dessecação em sementes, por evitar a transição do estado líquido-cristalino das membranas celulares para o estado de gel induzida pela dessecação (GUIMARÃES et al, 2002). REIS et al (2011) …”
Section: Resultsunclassified
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“…Segundo COSTA et al (2005) Há evidências de que a presença de açúcares não reduzidos estabiliza membranas de sementes secas e os açúcares solúveis atuariam como substitutos da água, desempenhando importante papel na tolerância à dessecação em sementes, por evitar a transição do estado líquido-cristalino das membranas celulares para o estado de gel induzida pela dessecação (GUIMARÃES et al, 2002). REIS et al (2011) …”
Section: Resultsunclassified
“…Parte dos açúcares redutores produzidos durante a lise das moléculas de reserva é utilizada na respiração celular dos tecidos, que é a principal fonte de energia durante os estágios iniciais de germinação das sementes. Outra fração destes açúcares é -ISSN 1983-6325 (On line) e-ISSN 1984 empregada para a produção de sacarose que é transportada para o eixo embrionário, no processo de fornecimento de energia para sua manutenção e desenvolvimento (REIS et al, 2011). 3.…”
Section: Médias Seguidas Pelas Mesmas Letras Períodos De Tempo Não DIunclassified
“…The wide variations in the duration of phase II among the species may have been due to differences in the activation and duration of the metabolic activities required for seed germination. Although there is little or no increase in water uptake in phase II, this phase is associated with considerable levels of metabolic activity [32,44]. Stored reserves in the endosperm, such as proteins, fats, and lipids, are converted into compounds such as sugars needed for germination [44,45].…”
Section: Controlled Deterioration Of Seeds and Electrolyte Leakagementioning
confidence: 99%
“…Although there is little or no increase in water uptake in phase II, this phase is associated with considerable levels of metabolic activity [32,44]. Stored reserves in the endosperm, such as proteins, fats, and lipids, are converted into compounds such as sugars needed for germination [44,45]. The tissues surrounding the embryos are weakened by enzymes that are activated by gibberellin [46].…”
Section: Controlled Deterioration Of Seeds and Electrolyte Leakagementioning
confidence: 99%
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