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dc.creatorOliveira, Natalia Trajano de-
dc.creatorNamorato, Filipe Aiura-
dc.creatorRao, Sombir-
dc.creatorCardoso, Arnon Afonso de Souza-
dc.creatorRezende, Pedro Milanez de-
dc.creatorGuilherme, Luiz Roberto Guimarães-
dc.creatorLiu, Jiping-
dc.creatorLi, Li-
dc.date.accessioned2023-06-26T13:54:21Z-
dc.date.available2023-06-26T13:54:21Z-
dc.date.issued2023-01-
dc.identifier.citationOLIVEIRA, N. T. de et al. Iron counteracts zinc-induced toxicity in soybeans. Plant Physiology and Biochemistry, [S.l.], v. 194, p. 335-344, Jan. 2023.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0981942822005253pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/57064-
dc.description.abstractZinc (Zn) and iron (Fe) are essential micronutrients for all living organisms and the major targets for crop biofortification. However, when acquired in excess quantities, Zn and Fe can be toxic to plants. In this study, we examined the interaction between Zn and Fe in soybean plants under various Zn and Fe treatments. While the level of Zn accumulation increased with increasing Zn supplies, Zn content greatly decreased with rising Fe supplies. Moreover, Zn uptake rates were negatively correlated with Fe supplies. However, Fe accumulation was not greatly affected by elevating Zn supplies. Excess Zn supplies were found to induce typical Fe deficiency symptoms under low Fe conditions, which can be counteracted by increasing Fe supplies. Interestingly, leaf chlorosis caused by excess Zn and low Fe supplies was not directly associated with reduced total Fe content but likely associated with deleterious effects of excess Zn. The combination of high Zn and low Fe greatly activates FRO2 and FIT1 gene expression in soybean roots. Besides, Zn-Fe interaction influences the activities of antioxidative enzymes as well as the uptake, accumulation, and homeostasis of other essential micronutrients, such as copper and manganese in soybean plants. These findings provide new perspectives on Zn and Fe interaction and on heavy metal-induced Fe deficiency-like symptoms.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourcePlant Physiology and Biochemistrypt_BR
dc.subjectSoybeanpt_BR
dc.subjectIronpt_BR
dc.subjectZincpt_BR
dc.subjectMicronutrient interactionpt_BR
dc.subjectChlorosispt_BR
dc.subjectGene expressionpt_BR
dc.titleIron counteracts zinc-induced toxicity in soybeanspt_BR
dc.typeArtigopt_BR
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