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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
19/01/2017 |
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Data da última atualização: |
28/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KROHLING, C. A.; EUTRÓBIO, J. F.; BERTOLAZI, A. A.; DOBBS, L. B.; CAMPOSTRINI, E.; DIAS, T.; RAMOS, A. C. |
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Afiliação: |
Cesar Abel Krohling, Incaper; Frederico Jacob Eutrópio, Universidade Vila Velha (UVV); Amanda Azevedo Bertolazi, Universidade Estadual do Norte Fluminense (UENF); Leonardo Barros Dobbss, Universidade Vila Velha (UVV); Eliemar Campostrini, Universidade Estadual do Norte Fluminense (UENF); Teresa Dias, Universidade de Lisboa; Alessandro Coutinho Ramos, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). |
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Título: |
Ecophysiology of iron homeostasis in plants. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
SOIL SCIENCE AND PLANT NUTRITION, v. 62, n. 1, p. 39-47, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
In 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. MenosIn 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 an... Mostrar Tudo |
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Thesaurus NAL: |
Deficiency; H+-ATPase; Iron transporters; Photosynthesis; Respiration. |
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Categoria do assunto: |
-- |
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URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/2655/1/BRT-Ecophysiologyofironhomeostasisinplants-krohling.pdf
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Marc: |
LEADER 02282naa a2200253 a 4500
001 1014114
005 2017-09-28
008 2016 bl uuuu u00u1 u #d
100 1 $aKROHLING, C. A.
245 $aEcophysiology of iron homeostasis in plants.$h[electronic resource]
260 $c2016
520 $aIn 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.
650 $aDeficiency
650 $aH+-ATPase
650 $aIron transporters
650 $aPhotosynthesis
650 $aRespiration
700 1 $aEUTRÓBIO, J. F.
700 1 $aBERTOLAZI, A. A.
700 1 $aDOBBS, L. B.
700 1 $aCAMPOSTRINI, E.
700 1 $aDIAS, T.
700 1 $aRAMOS, A. C.
773 $tSOIL SCIENCE AND PLANT NUTRITION$gv. 62, n. 1, p. 39-47, 2016.
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Biblioteca Rui Tendinha (BRT) |
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| 6. |  | TEIXEIRA, C. P.; VENTURA, J. A.; FORNAZIER, M. J. The avocado crop in the highlands of the Espírito Santo State, Brazil. In: INTERNATIONAL SYMPOSIUM ON TROPICAL FRUITS, 1., 1993, Vitória, ES. Program and abstracts. Vitória : EMCAPA, p. 32, 1993. (EMCAPA. Documentos, 79).| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 11. | | FORNAZIER, M. J.; PIFFER, R.; TEIXEIRA, C. P.; ATHAIDE, M. O. Chemical control of the avocado fruit borer. In: INTERNATIONAL SYMPOSIUM ON TROPICAL FRUITS, 1., 1993, Vitória, ES. Program and abstracts. Vitória : EMCAPA, p. 18, 1993. (EMCAPA. Documentos, 79).| Biblioteca(s): Biblioteca Rui Tendinha. |
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| 15. | | ARAÚJO, J. B. S.; FORNAZIER, M. J.; PREZOTTI, L. C.; COSTA, H.; TEIXEIRA, C. P. Compostagem orgânica, biofertilizante e cobertura morta em cultivo orgânico de tangerina. In: SIMPÓSIO INTERNO DE PESQUISA, DESENVOLVIMENTO E INOVAÇÃO, 1., 2004, Vitória. Resumo das ações de pesquisa, desenvolvimento e inovações tecnológicas. Vitória, ES : Incaper, p. 36-37, 2005. (Incaper. Documentos, 140).| Tipo: Publicação em Anais de Congresso |
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| 20. | | TEIXEIRA, C. P.; BALBINO, J. M. de S.; ABAURRE, M. E. O.; COSTA, A. N. da.; PREZOTTI, L. C. Avaliação, validação e difusão de cultivares de espécies frutíferas de clima temperado e subtropical com menor exigência em frio. In: SIMPÓSIO INTERNO DE PESQUISA, DESENVOLVIMENTO E INOVAÇÃO, 1., 2004, Vitória. Resumo das ações de pesquisa, desenvolvimento e inovações tecnológicas. Vitória, ES : Incaper, p. 135-136, 2005. (Incaper. Documentos, 140).| Tipo: Publicação em Anais de Congresso |
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