Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/950801
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dc.contributor.authorADAMSKI, J. M.pt_BR
dc.contributor.authorDANIELOSKI, R.pt_BR
dc.contributor.authorDEUNER, S.pt_BR
dc.contributor.authorBRAGA, E. J. B.pt_BR
dc.contributor.authorCASTRO, L. A. S. dept_BR
dc.contributor.authorPETERS, J. A.pt_BR
dc.date.accessioned2013-02-25T11:11:11Zpt_BR
dc.date.available2013-02-25T11:11:11Zpt_BR
dc.date.created2013-02-25pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationActa Physiologiae Plantarum, v. 34, n. 5, p. 1827-1836, September 2012.pt_BR
dc.identifier.issn0137-5881pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/950801pt_BR
dc.descriptionThis study aimed to evaluate the effects of different iron concentrations on growth characteristics, antioxidant enzyme activities, nutrient absorption, and anatomical changes in sweet potato (Ipomoea batatas L.). To accomplish this, seedlings from apical branches of plants that had already been established in the greenhouse were rooted in a hydroponic sponge and then transplanted into a hydroponic system intermittently for 2 weeks and irrigated with nutrient solutions containing iron (ferric-EDTA) at concentrations of 0.45, 0.9, 4.5, and 9.0 mmol L?1. Height, leaf area, and total biomass were significantly reduced at iron concentrations of 4.5 and 9.0 mmol L?1. The iron concentrations in the established leaves and those that developed after the solution supplementation increased significantly. The amounts of other nutrients were also affected, with manganese showing the most significant decrease. The activities of the antioxidant enzymes, superoxide dismutase, and ascorbate peroxidase increased in plants grown in the 9.0 mmol L?1 iron solution. At this concentration, however, the stomatal densities were reduced on the abaxial surfaces of the leaves, although the stomatal diameters increased. The ultrastructures of the radical cells showed mitochondrial impairment at high iron concentrations; however, the chloroplast structures remained unaffected.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectNutrientespt_BR
dc.subjectEstressept_BR
dc.subjectFerric-EDTApt_BR
dc.subjectIpomoea batatas Lpt_BR
dc.titleResponses to excess iron in sweet potato: impacts on growth, enzyme activities, mineral concentrations, and anatomy.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-02-25T11:11:11Zpt_BR
dc.subject.thesagroBatatapt_BR
dc.subject.thesagroBiomassapt_BR
dc.subject.thesagroFerropt_BR
dc.subject.nalthesaurusstomatapt_BR
riaa.ainfo.id950801pt_BR
riaa.ainfo.lastupdate2013-02-25pt_BR
dc.identifier.doi10.1007/s11738-012-0981-3pt_BR
dc.contributor.institutionJANETE M. ADAMSKI; RODRIGO DANIELOSKI; SIDNEI DEUNER, CPAC; EUGENIA J. B. BRAGA; LUIS ANTONIO SUITA DE CASTRO, CPACT; JOSE A. PETERS.pt_BR
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