New routes for plant iron mining
Autor: | Catherine Curie, Stéphane Mari |
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Přispěvatelé: | Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) |
Jazyk: | angličtina |
Rok vydání: | 2016 |
Předmět: |
0106 biological sciences
0301 basic medicine Physiology Iron [SDV]Life Sciences [q-bio] embryo Plant Science Vacuole Biology 01 natural sciences Plant Roots Cell wall 03 medical and health sciences chemistry.chemical_compound iron (Fe) Secretion Nutritional Physiological Phenomena Transcellular Abscisic acid ComputingMilieux_MISCELLANEOUS 2. Zero hunger vacuole fungi food and beverages Plants apoplast root Apoplast 030104 developmental biology Membrane chemistry Biochemistry Seeds transport Endodermis Extracellular Space [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition 010606 plant biology & botany |
Zdroj: | New Phytologist New Phytologist, Wiley, 2016, ⟨10.1111/nph.14364⟩ New Phytologist, Wiley, 2016, 214 (2), ⟨10.1111/nph.14364⟩ New Phytologist, Wiley, 2017, 214 (2), pp.521-525. ⟨10.1111/nph.14364⟩ |
ISSN: | 0028-646X 1469-8137 |
Popis: | Contents 521 I. 521 II. 522 III. 523 IV. 524 525 References 525 SUMMARY: Plant iron (Fe) uptake relies to a large extent on the capacity of cells to control and extract Fe pools safely conserved in extracytoplasmic environments such as the apoplast and vacuoles, at least as much as on the transport machinery nested in plasma membranes. Recent studies on root and embryo Fe nutrition support this assertion and show that the root Fe-deficiency response also includes the dynamic use of a large Fe reservoir bound to cell wall components in the root apoplast, secretion in the apoplast of phenolic compounds of the coumarin family, which solubilize Fe in calcareous soils, and inhibition of suberization of endodermal cells in order to allow apoplastic and transcellular radial transport of Fe. All of these responses are regulated by the stress hormones ethylene and abscisic acid (ABA), suggesting an integrated strategy within the root to adapt to Fe shortage. For its nutrition, the embryo has developed both an original uptake mechanism, in which ascorbate is effluxed to chemically reduce Fe3+ to the transport-competent Fe2+ form, and an efficient strategy to control utilization of a large Fe pool in vacuoles. This review will attempt to summarize exciting new insights into the diverse routes that Fe takes to feed plant tissues. |
Databáze: | OpenAIRE |
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