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| Santos,Railson Schreinert dos; Araujo Júnior,Artur Teixeira de; Pegoraro,Camila; Oliveira,Antonio Costa de. |
| Abstract Iron is a well-known metal. Used by humankind since ancient times in many different ways, this element is present in all living organisms, where, unfortunately, it represents a two-way problem. Being an essential block in the composition of different proteins and metabolic pathways, iron is a vital component for animals and plants. That is why iron deficiency has a severe impact on the lives of different organisms, including humans, becoming a major concern, especially in developing countries where access to adequate nutrition is still difficult. On the other hand, this metal is also capable of causing damage when present in excess, becoming toxic to cells and affecting the whole organism. Because of its importance, iron absorption, transport and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iron toxicity; Mineral malnutrition; Fe-enrichment; Quantitative Trait Loci. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200312 |
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| Silveira,Vivian C. da; Oliveira,Anna P. de; Sperotto,Raul A.; Espindola,Luciana S.; Amaral,Lívio; Dias,Johnny F.; Cunha,João B. da; Fett,Janette P.. |
| Iron is an essential nutrient for plants. In aerobic conditions, Fe is highly unavailable for plant uptake, and Fe deficiency can be severe in plants grown in calcareous soils. In waterlogged soils, however, Fe availability increases and can reach toxic concentrations. Rice is an important staple crop worldwide and faces iron deficiency or excess, depending on the growth conditions. To contribute to the study of mechanisms involved in response to Fe deficiency and resistance to Fe excess, experiments were carried out with rice cultivars BR-IRGA 409 (I409, susceptible to Fe toxicity) and EPAGRI 108 (E108, resistant to Fe toxicity) grown in culture solutions and submitted to Fe excess, control concentration or deficiency (500, 6.5 or zero mg L-1 Fe,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ferritin; Iron deficiency; Iron toxicity; Mössbauer spectroscopy; Oryza sativa; PIXE. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000200005 |
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