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	Provedor de dados Rev. Bras. Fisiol. Veg. (1) Autor KINET,JEAN MARIE (1) LUTTS,STANLEY (1) MACÊDO,CRISTIANE ELIZABETH COSTA DE (1) Palavra-chave Al detoxification (1) Citrate (1) Internal tolerance (1) Malate (1) Mechanisms Al resistance (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2001 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Aluminum effects on citric and malic acid excretion in roots and calli of rice cultivars Rev. Bras. Fisiol. Veg. MACÊDO,CRISTIANE ELIZABETH COSTA DE; KINET,JEAN MARIE; LUTTS,STANLEY. Citric and malic acid excretion in the medium and malic acid accumulation in seedling roots and embryo-derived calli as possible mechanisms of aluminum (Al) resistance and the effects of a 17-h Al stress period on root growth in Oryza sativa have been studied. Four-day-old seedlings and embryo-derived calli of Al-resistant (IRAT 112 and IR6023) and Al-sensitive (Aiwu and IKP) cultivars were treated with 250 and 500 µM {Al2(S04)3.18H20 }of total aluminum or without Al for 36 hours. After 3 to 36 hours of stress, seedlings and calli were removed from the flasks and concentration of citric and malic acids was estimated in the Al and control solutions. Malic acid was also assayed in roots tips and in callus tissues. After 17-h of Al stress, inhibition of root... Tipo: Info:eu-repo/semantics/article Palavras-chave: Malate; Citrate; Mechanisms Al resistance; Al detoxification; Internal tolerance. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000100002 Registros recuperados: 1 Primeira ... 1 ... Última

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