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Flooding tolerance and cell wall alterations in maize mesocotyl during hypoxia. Repositório Alice
VITORINO, P.G.; ALVES, J.D.; MAGALHAES, P.C.; MAGALHAES, M.M.; LIMA, L.C.O.; OLIVEIRA, L.E.M. de.
This research aimed to characterize the tolerance to flooding and alterations in pectic and hemicellulose fractions from mesocotyl of maize tolerant to flooding when submitted to hypoxia. In order to characterize tolerance seeds from maize cultivars Saracura BRS-4154 and BR 107 tolerant and sensitive to low oxygen levels, respectively, were set to germinate. Plantlet survival was evaluated during five days after having been submitted to hypoxia. After fractionation with ammonium oxalate 0.5% (w/v) and KOH 2M and 4M, Saracura BRS-4154 cell wall was obtained from mesocotyl segments with different damage intensities caused by oxygen deficiency exposure. The cell wall fractions were analyzed by gel filtration and gas chromatography, and also by Infrared...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Pectic substances; Hemicellulose; Substancias pecticas; Hemicelulose.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/103963
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Flooding tolerance and cell wall alterations in maize mesocotyl during hypoxia. Repositório Alice
VITORINO, P.G.; ALVES, J.D.; MAGALHAES, P. C.; MAGALHAES, M.M.; LIMA, L.C.O.; OLIVEIRA, L.E.M. de..
ABSTRACT - This research aimed to characterize the tolerance to flooding and alterations in pectic and hemicellulose fractions from mesocotyl of maize tolerant to flooding when submitted to hypoxia. In order to characterize tolerance seeds from maize cultivars Saracura BRS-4154 and BR 107 tolerant and sensitive to low oxygen levels, respectively, were set to germinate. Plantlet survival was evaluated during five days after having been submitted to hypoxia. After fractionation with ammonium oxalate 0.5% (w/v) and KOH 2M and 4M, Saracura BRS-4154 cell wall was obtained from mesocotyl segments with different damage intensities caused by oxygen deficiency exposure. The cell wall fractions were analyzed by gel filtration and gas chromatography, and also by...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Milho; Substancias pecticas; Hemicelulose; Zea mays; Maize; Pectic substances; Hemicellulose.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/485067
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Formação de aerênquima em raízes de plântulas do milho Saracura, de diferentes ciclos de seleção sob condições de encharcamento. Repositório Alice
LOPES, M.J.C.; SOUZA, I. R. P.; MAGALHAES, P. C.; GAMA, E.E.G.; ALVES, J.D.; MAGALHAES, M.M..
2004
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Zea mays L; Hipoxia; BRS 4154; BR 107; Selecao massal.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/488091
Registros recuperados: 3
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