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Temporal aspects of copper homeostasis and its crosstalk with hormones

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Temporal aspects of copper homeostasis and its crosstalk with hormones

dc.contributor.author	Peñarrubia Blasco, Lola
dc.contributor.author	Romero, Paco
dc.contributor.author	Carrió Seguí, Ángela
dc.contributor.author	Andrés Bordería, Amparo
dc.contributor.author	Moreno Mariño, Joaquín
dc.contributor.author	Sanz Grau, Amparo
dc.date.accessioned	2016-09-27T18:35:44Z
dc.date.available	2016-09-27T18:35:44Z
dc.date.issued	2015
dc.identifier.citation	Peñarrubia Blasco, Lola Romero, Paco Carrió Seguí, Angela Andrés Bordería, Amparo Moreno Mariño, Joaquín Sanz Grau, Amparo 2015 Temporal aspects of copper homeostasis and its crosstalk with hormones Frontiers In Plant Science 6 255 1 18
dc.identifier.uri	http://hdl.handle.net/10550/55178
dc.description.abstract	To cope with the dual nature of copper as being essential and toxic for cells, plants temporarily adapt the expression of copper homeostasis components to assure its delivery to cuproproteins while avoiding the interference of potential oxidative damage derived from both copper uptake and photosynthetic reactions during light hours. The circadian clock participates in the temporal organization of coordination of plant nutrition adapting metabolic responses to the daily oscillations. This timely control improves plant fitness and reproduction and holds biotechnological potential to drive increased crop yields. Hormonal pathways, including those of abscisic acid, gibberellins, ethylene, auxins, and jasmonates are also under direct clock and light control, both in mono and dicotyledons. In this review, we focus on copper transport in Arabidopsis thaliana and Oryza sativa and the presumable role of hormones in metal homeostasis matching nutrient availability to growth requirements and preventing metal toxicity. The presence of putative hormone-dependent regulatory elements in the promoters of copper transporters genes suggests hormonal regulation to match special copper requirements during plant development. Spatial and temporal processes that can be affected by hormones include the regulation of copper uptake into roots, intracelular trafficking and compartmentalization, and long-distance transport to developing vegetative and reproductive tissues. In turn, hormone biosynthesis and signaling are also influenced by copper availability, which suggests reciprocal regulation subjected to temporal control by the central oscillator of the circadian clock. This transcriptional regulatory network, coordinates environmental and hormonal signaling with developmental pathways to allow enhanced micronutrient acquisition efficiency.
dc.language.iso	eng
dc.relation.ispartof	Frontiers In Plant Science, 2015, vol. 6, num. 255, p. 1-18
dc.subject	Estrès oxidatiu
dc.subject	Fisiologia
dc.title	Temporal aspects of copper homeostasis and its crosstalk with hormones
dc.type	journal article	es_ES
dc.date.updated	2016-09-27T18:35:45Z
dc.identifier.doi	10.3389/fpls.2015.00255
dc.identifier.idgrec	108481
dc.rights.accessRights	open access	es_ES