Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados BABT (1) Braz. J. Plant Physiol. (1) Autor Agarwal,Sheela (1) Carvalho,M. Angela Machado de (1) Dias-Tagliacozzo,Gláucia M. (1) Dietrich,Sonia M. C. (1) Figueiredo-Ribeiro,Rita de Cássia L. (1) Itaya,Nair M. (1) Shaheen,Robina (1) Mais... Palavra-chave Environmental stresses (2) Antioxidative enzymes (1) Asteraceae (1) Drought (1) Fructan metabolism (1) H2O2 (1) Inulin (1) Ion concentration (1) Reserve organs (1) Thiobarbituric acid-reactive substances (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2004 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Fructans and water suppression on intact and fragmented rhizophores of Vernonia herbacea BABT Dias-Tagliacozzo,Gláucia M.; Itaya,Nair M.; Carvalho,M. Angela Machado de; Figueiredo-Ribeiro,Rita de Cássia L.; Dietrich,Sonia M. C.. In order to evaluate the involvement of fructans in drought tolerance, experiments were conducted using intact plants and excised rhizophores of Vernonia herbacea. The water content in rhizophores of intact plants was maintained for 30 days when plants were watered every 7 and 15 days, whereas plants remained alive up to 60 days without water. Total fructan, oligo- to polysaccharides ratio and mean molecular mass of polysaccharides increased in these plants indicating depolymerization of median size molecules. In apical fragments of rhizophores kept dry the oligosaccharides increased in relation to polysaccharides one day after excision in treated tissues. This was reflected in the HPLC profile of the oligosaccharides in which the proportion of free... Tipo: Info:eu-repo/semantics/article Palavras-chave: Inulin; Environmental stresses; Drought; Fructan metabolism; Reserve organs; Asteraceae. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000300005 Stimulation of antioxidant system and lipid peroxidation by abiotic stresses in leaves of Momordica charantia Braz. J. Plant Physiol. Agarwal,Sheela; Shaheen,Robina. The purpose of the present work was to evaluate both the antioxidant response system and oxidative stress in leaves from bitter gourd (Momordica charantia L) subjected to NaCl, UV-B and water stresses at three different stages of plant growth: pre-flowering, flowering and post-flowering. Except for peroxidase (POX), all enzyme activities including superoxide dismutase (SOD), catalase (CAT), polyphenol oxidase (PPO), glutathione reductase (GR), as well as concentrations of ascorbate (ASA), hydrogen peroxide (H2O2) and thiobarbituric acid reactive substances (TBARS) exhibited maximum values at the flowering stage under all three stresses. All the enzyme activities, SOD, CAT, POX, PPO, GR and the concentrations of ASA, H2O2 and TBARS were elevated under NaCl... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidative enzymes; Environmental stresses; H2O2; Ion concentration; Thiobarbituric acid-reactive substances. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000200007 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco