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dc.contributor.authorKROHLING, C. A.pt_BR
dc.contributor.authorEUTRÓBIO, J. F.pt_BR
dc.contributor.authorBERTOLAZI, A. A.pt_BR
dc.contributor.authorDOBBS, L. B.pt_BR
dc.contributor.authorCAMPOSTRINI, E.pt_BR
dc.contributor.authorDIAS, T.pt_BR
dc.contributor.authorRAMOS, A. C.pt_BR
dc.date.accessioned2017-01-19T15:35:00Z-
dc.date.available2017-01-19T15:35:00Z-
dc.date.created2016pt_BR
dc.date.issued2017-01-19pt_BR
dc.identifier.other14932pt_BR
dc.identifier.urihttp://biblioteca.incaper.es.gov.br/digital/handle/item/2655-
dc.descriptionIn nature, iron (Fe) occurs in abundance and ranks fourth among all elements on Earth?s surface. Still, its availability to plants is reduced, once this element is in the form of hydrated oxides, which can limit plant productivity and biomass production. On the other hand, in high concentrations, this essential micronutrient for the plants can become a toxic agent, increasing the environmental contamination. Fe is necessary for the maintenance of essential processes like respiration and photosynthesis, participating in the electron transport chain and in the conversion between Fe2+ and Fe3+, being a key element for carbon dioxide (CO2) fixation and, therefore, important for crop production of cultivated or natural species. The balance of Fe should be strictly controlled, because both its deficiency and its toxicity affect the physiological process of plants. In aerated soils Fe is present in the form of Fe3+, which is the oxidized form and is less available to plants, so these organisms have developed different strategies for absorption, transport and storage of Fe. Deficiency and excess of Fe correlate with local soil conditions and with the care adopted in plant nutrition during the phenological phases and/or in the course of its cultivation. In situations of excessive accumulation of Fe in tissues, an enhancement of hydroxyl radical generation (OH?) occurs by Fenton reaction. Here, we review the nutritional, genetic and ecophysiological aspects of uptake, translocation and accumulation of Fe ions in plants growing under conditions of deficiency or toxicity of this metal.pt_BR
dc.languagept_BRpt_BR
dc.publisherSOIL SCIENCE AND PLANT NUTRITION, v. 62, n. 1, p. 39?47, 2016.pt_BR
dc.titleEcophysiology of iron homeostasis in plants.pt_BR
dc.typeArtigo de periódico (quando a biblioteca tiver o título do periódico)pt_BR
dc.ainfo.id14114pt_BR
dc.ainfo.lastupdate2017-01-19pt_BR
dc.ainfo.depositanteCatia Ribeiro Barcelospt_BR
dc.subject.nalthesaurusRespirationpt_BR
dc.subject.nalthesaurusDeficiencypt_BR
dc.subject.nalthesaurusPhotosynthesispt_BR
dc.subject.nalthesaurusIron transporterspt_BR
dc.subject.nalthesaurusH+-ATPasept_BR
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