Show simple item record

dc.creatorEsteban Terradillos, Raqueles_ES
dc.creatorAriz, Idoiaes_ES
dc.creatorCruz, Cristinaes_ES
dc.creatorMorán Juez, José Fernandoes_ES
dc.date.accessioned2016-07-26T08:21:42Z
dc.date.available2018-07-01T23:00:11Z
dc.date.issued2016
dc.identifier.issn0168-9452 (Print)
dc.identifier.issn1873-2259 (Electronic)
dc.identifier.urihttps://hdl.handle.net/2454/21068
dc.description.abstractAmmonium sensitivity of plants is a worldwide problem, constraining crop production. Prolonged application of ammonium as the sole nitrogen source may result in physiological and morphological disorders that lead to decreased plant growth and toxicity. The main causes of ammonium toxicity/tolerance described until now include high ammonium assimilation by plants and/or low sensitivity to external pH acidification. The various ammonium transport-related components, especially the non-electrogenic influx of NH3 (related to the depletion of 15N) and the electrogenic influx of NH4+, may contribute to ammonium accumulation, and therefore to NH3 toxicity. However, this accumulation may be influenced by increasing K+ concentration in the root medium. Recently, new insights have been provided by “omics” studies, leading to a suggested involvement of GDP mannose-pyrophosphorylase in the response pathways of NH4+ stress. In this review, we highlight the cross-talk signaling between nitrate, auxins and NO, and the importance of the connection of the plants’ urea cycle to metabolism of polyamines. Overall, the tolerance and amelioration of ammonium toxicity are outlined to improve the yield of ammonium-grown plants. This review identifies future directions of research, focusing on the putative importance of aquaporins in ammonium influx, and on genes involved in ammonium sensitivity and tolerance.eu
dc.description.sponsorshipThe authors acknowledge the support of research grants AGL2014-52396-P from the Spanish Ministry of Economy and Competitiveness (MINECO) and PTDC/BIA-BEC/099323/2008 and PTDC/BIA-ECS/122214/2010 from the Portuguese Fundação para a Ciência e Tecnologia (FCT). RE received a JAE-Doc-2011-046 fellow from the Spanish CSIC, co-financed by the European Social Fund.eu
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofPlant Science 248 (2016) 92-101en
dc.rights© 2016 Elsevier Inc. The manuscript version is made available under the CC BY-NC-ND 4.0 licenseen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAmmoniumen
dc.subjectCounterbalanceen
dc.subjectGasen
dc.subjectSensitivityen
dc.subjectToleranceen
dc.subjectUreaen
dc.titleMechanisms of ammonium toxicity and the quest for toleranceen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.contributor.departmentIdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutuaes
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.embargo.terms2018-07-01
dc.identifier.doi10.1016/j.plantsci.2016.04.008
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO//AGL2014-52396-P/ES/en
dc.relation.publisherversionhttps://dx.doi.org/10.1016/j.plantsci.2016.04.008
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

© 2016 Elsevier Inc. The manuscript version is made available under the CC BY-NC-ND 4.0 license
Except where otherwise noted, this item's license is described as © 2016 Elsevier Inc. The manuscript version is made available under the CC BY-NC-ND 4.0 license

El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
Logo MinisterioLogo Fecyt