Modulation of plant root growth by nitrogen source-defined regulation of polar auxin transport

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dc.contributor.authorOtvos, Krisztina
dc.contributor.authorMarconi, Marco
dc.contributor.authorVega, Andrea
dc.contributor.authorO'Brien, Jose
dc.contributor.authorJohnson, Alexander
dc.contributor.authorAbualia, Rashed
dc.contributor.authorAntonielli, Livio
dc.contributor.authorMontesinos, Juan Carlos
dc.contributor.authorZhang, Yuzhou
dc.contributor.authorTan, Shutang
dc.contributor.authorCuesta, Candela
dc.contributor.authorArtner, Christina
dc.contributor.authorBouguyon, Eleonore
dc.contributor.authorGojon, Alain
dc.contributor.authorFriml, Jiri
dc.contributor.authorGutierrez, Rodrigo A.
dc.contributor.authorWabnik, Krzysztof
dc.contributor.authorBenkova, Eva
dc.date.accessioned2025-01-20T23:55:38Z
dc.date.available2025-01-20T23:55:38Z
dc.date.issued2021
dc.description.abstractAvailability of the essential macronutrient nitrogen in soil plays a critical role in plant growth, development, and impacts agricultural productivity. Plants have evolved different strategies for sensing and responding to heterogeneous nitrogen distribution. Modulation of root system architecture, including primary root growth and branching, is among the most essential plant adaptions to ensure adequate nitrogen acquisition. However, the immediate molecular pathways coordinating the adjustment of root growth in response to distinct nitrogen sources, such as nitrate or ammonium, are poorly understood. Here, we show that growth as manifested by cell division and elongation is synchronized by coordinated auxin flux between two adjacent outer tissue layers of the root. This coordination is achieved by nitrate-dependent dephosphorylation of the PIN2 auxin efflux carrier at a previously uncharacterized phosphorylation site, leading to subsequent PIN2 lateralization and thereby regulating auxin flow between adjacent tissues. A dynamic computer model based on our experimental data successfully recapitulates experimental observations. Our study provides mechanistic insights broadening our understanding of root growth mechanisms in dynamic environments.
dc.fuente.origenWOS
dc.identifier.doi10.15252/embj.2020106862
dc.identifier.eissn1460-2075
dc.identifier.issn0261-4189
dc.identifier.urihttps://doi.org/10.15252/embj.2020106862
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95101
dc.identifier.wosidWOS:000604645600001
dc.issue.numero3
dc.language.isoen
dc.revistaEmbo journal
dc.rightsacceso restringido
dc.subjectauxin transport
dc.subjectnutrients
dc.subjectpost&#8208
dc.subjecttranslational modification
dc.subjectprotein trafficking
dc.subjectroot development
dc.subject.ods13 Climate Action
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa02 Hambre cero
dc.titleModulation of plant root growth by nitrogen source-defined regulation of polar auxin transport
dc.typeartículo
dc.volumen40
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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