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	Provedor de dados Braz. J. Plant Physiol. (1) Autor Ferreira-Silva,Sérgio L (1) Macêdo,Cristiane E. C (1) Maia,Josemir M (1) Silveira,Joaquim A. G (1) Voigt,Eduardo L (1) Palavra-chave Antioxidative enzymes (1) Oxidative stress (1) Root growth inhibition (1) Salt stress (1) Vigna unguiculata (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2010 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Salt-induced changes in antioxidative enzyme activities in root tissues do not account for the differential salt tolerance of two cowpea cultivars Braz. J. Plant Physiol. Maia,Josemir M; Voigt,Eduardo L; Macêdo,Cristiane E. C; Ferreira-Silva,Sérgio L; Silveira,Joaquim A. G. The salt stress effect in root growth and antioxidative response were investigated in two cowpea cultivars which differ in salt tolerance in terms of plant growth and leaf oxidative response. Four-day-old seedlings (establishment stage) were exposed to 100 mM NaCl for two days. The roots of the two cultivars presented distinct response in terms of salt-induced changes in elongation and dry weight. Root dry weight was only decreased in Pérola (sensitive) cultivar while root elongation was mainly hampered in Pitiúba (tolerant). Root relative water content remained unchanged under salinity, but root Na+ content achieved toxic levels as revealed by the K+/Na+ ratio in both cultivars. Then, root growth inhibition might be due to ionic toxicity rather than by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidative enzymes; Oxidative stress; Root growth inhibition; Salt stress; Vigna unguiculata. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000200005 Registros recuperados: 1 Primeira ... 1 ... Última

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