Nuclear retention of the transcription factor NLP7 orchestrates the early response to nitrate in plants

Chloé Marchive, François Roudier, Loren Castaings, Virginie Bréhaut, Eddy Blondet, Vincent Colot, Christian Meyer and Anne Krapp ()
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Chloé Marchive: Institut National de la Recherche Agronomique (INRA), UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences
François Roudier: Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS), UMR8197, Institut National de la Santé et de la Recherche Médicale (INSERM) U1024
Loren Castaings: Institut National de la Recherche Agronomique (INRA), UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences
Virginie Bréhaut: Institut National de la Recherche Agronomique (INRA), UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences
Eddy Blondet: URGV, UMR 1165 Institut National de la Recherche Agronomique-CNRS
Vincent Colot: Institut de Biologie de l'Ecole Normale Supérieure, Centre National de la Recherche Scientifique (CNRS), UMR8197, Institut National de la Santé et de la Recherche Médicale (INSERM) U1024
Christian Meyer: Institut National de la Recherche Agronomique (INRA), UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences
Anne Krapp: Institut National de la Recherche Agronomique (INRA), UMR1318, Institut Jean-Pierre Bourgin, Saclay Plant Sciences

Nature Communications, 2013, vol. 4, issue 1, 1-9

Abstract: Abstract Nitrate is both an important nutrient and a signalling molecule for plants. Although several components of the nitrate signalling pathway have been identified, their hierarchical organization remains unclear. Here we show that the localization of NLP7, a member of the RWP-RK transcription factor family, is regulated by nitrate via a nuclear retention mechanism. Genome-wide analyses revealed that NLP7 binds and modulates a majority of known nitrate signalling and assimilation genes. Our findings indicate that plants, like fungi and mammals, rely on similar nuclear retention mechanisms to instantaneously respond to the availability of key nutrients.

Date: 2013
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DOI: 10.1038/ncomms2650

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