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dc.contributor.authorRosales Villegas, Miguel Á.es_ES
dc.contributor.authorFranco-Navarro, Juan D.es_ES
dc.contributor.authorPeinado-Torrubia, Procopioes_ES
dc.contributor.authorDíaz-Rueda, P.es_ES
dc.contributor.authorÁlvarez, Rosarioes_ES
dc.contributor.authorColmenero Flores, José M.es_ES
dc.identifier.citationFrontiers in Plant Science 11: 442 (2020)es_ES
dc.description13 páginas.- 4 figuras.- 1 tabla.- referencias.- The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fpls.2020.00442/full#supplementary-materiales_ES
dc.description.abstractChloride (Cl–) has traditionally been considered harmful to agriculture because of its toxic effects in saline soils and its antagonistic interaction with nitrate (NO3–), which impairs NO3– nutrition. It has been largely believed that Cl– antagonizes NO3– uptake and accumulation in higher plants, reducing crop yield. However, we have recently uncovered that Cl– has new beneficial macronutrient, functions that improve plant growth, tissue water balance, plant water relations, photosynthetic performance, and water-use efficiency. The increased plant biomass indicates in turn that Cl– may also improve nitrogen use efficiency (NUE). Considering that N availability is a bottleneck for the plant growth, the excessive NO3– fertilization frequently used in agriculture becomes a major environmental concern worldwide, causing excessive leaf NO3– accumulation in crops like vegetables and, consequently, a potential risk to human health. New farming practices aimed to enhance plant NUE by reducing NO3– fertilization should promote a healthier and more sustainable agriculture. Given the strong interaction between Cl– and NO3– homeostasis in plants, we have verified if indeed Cl– affects NO3– accumulation and NUE in plants. For the first time to our knowledge, we provide a direct demonstration which shows that Cl–, contrary to impairing of NO3– nutrition, facilitates NO3– utilization and improves NUE in plants. This is largely due to Cl– improvement of the N–NO3– utilization efficiency (NUTE), having little or moderate effect on N–NO3– uptake efficiency (NUPE) when NO3– is used as the sole N source. Clear positive correlations between leaf Cl– content vs. NUE/NUTE or plant growth have been established at both intra- and interspecies levels. Optimal NO3– vs. Cl– ratios become a useful tool to increase crop yield and quality, agricultural sustainability and reducing the negative ecological impact of NO3– on the environment and on human health.es_ES
dc.description.sponsorshipThis work was supported by the Spanish Ministry of Science Innovation and Universities-FEDER grants AGL2015-71386-R and RTI2018-094460-B-I00, and by the Spanish National Research Council grants CSIC-201840E132, CSIC-201940E039, and CSIC-201940E077.es_ES
dc.publisherFrontiers Mediaes_ES
dc.relation.isversionofPublisher's versiones_ES
dc.titleChloride Improves Nitrate Utilization and NUE in Plantses_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidRosales Villegas, Miguel Á. [0000-0001-8390-3560]es_ES
dc.contributor.orcidFranco-Navarro, Juan D. [0000-0001-7144-3499]es_ES
dc.contributor.orcidPeinado-Torrubia, Procopio [0000-0003-2450-4441]es_ES
dc.contributor.orcidDíaz-Rueda, P. [0000-0002-7263-9722]es_ES
dc.contributor.orcidColmenero Flores, José M. [0000-0001-9475-1187]es_ES
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