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Metal species involved in long distance metal transport in plants

AutorÁlvarez-Fernández, Ana ; Díaz-Benito, Pablo ; Abadía Bayona, Anunciación ; López-Millán, Ana Flor ; Abadía Bayona, Javier
Palabras claveMetals
Metal complexes
Fecha de publicaciónmar-2014
EditorFrontiers Media
CitaciónÁlvarez-Fernández A, Díaz-Benito P, Abadía A, López-Millán AF, Abadía J. Metal species involved in long distance metal transport in plants. Frontiers in Plant Science 5: 105 (2014)
ResumenThe mechanisms plants use to transport metals from roots to shoots are not completely understood. It has long been proposed that organic molecules participate in metal translocation within the plant. However, until recently the identity of the complexes involved in the long-distance transport of metals could only be inferred by using indirect methods, such as analyzing separately the concentrations of metals and putative ligands and then using in silico chemical speciation software to predict metal species. Molecular biology approaches also have provided a breadth of information about putative metal ligands and metal complexes occurring in plant fluids. The new advances in analytical techniques based on mass spectrometry and the increased use of synchrotron X-ray spectroscopy have allowed for the identification of some metal-ligand species in plant fluids such as the xylem and phloem saps. Also, some proteins present in plant fluids can bind metals and a few studies have explored this possibility. This study reviews the analytical challenges researchers have to face to understand long-distance metal transport in plants as well as the recent advances in the identification of the ligand and metal-ligand complexes in plant fluids.
Descripción20 Pags.- 2 Tabls.- 1 Fig. © 2014 Álvarez-Fernández, Díaz-Benito, Abadía, López-Millán and Abadía. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Versión del editorhttp://dx.doi.org/10.3389/fpls.2014.00105
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