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We made use of different bacterial mutants to finely modulate NO levels inside M. truncatula root nodules and to examine the consequence on tyrosine nitration of the plant glutamine synthetase, a protein responsible for assimilation of the ammonia released by nitrogen fixation. Our results reveal that S. meliloti possesses several proteins that limit inactivation of plant enzyme activity via NO-mediated post-translational modifications. This is the first demonstration that rhizobia can impact the course of nitrogen fixation by modulating the activity of a plant protein. <\/jats:p>","DOI":"10.1094\/mpmi-05-15-0118-r","type":"journal-article","created":{"date-parts":[[2015,9,30]],"date-time":"2015-09-30T13:36:52Z","timestamp":1443620212000},"page":"1353-1363","source":"Crossref","is-referenced-by-count":39,"title":["<i>Sinorhizobium meliloti<\/i> Controls Nitric Oxide\u2013Mediated Post-Translational Modification of a <i>Medicago truncatula<\/i> Nodule Protein"],"prefix":"10.1094","volume":"28","author":[{"given":"Pauline","family":"Blanquet","sequence":"first","affiliation":[{"name":"Institut National de la Recherche Agronomique, Laboratoire des Interactions Plantes-Microorganismes, UMR441, Castanet-Tolosan, France;"},{"name":"Centre National de la Recherche Scientifique, Laboratoire des Interactions Plantes-Microorganismes, UMR2594, Castanet-Tolosan, France; and"}]},{"given":"Liliana","family":"Silva","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Biologia Molecular da Assimila\u00e7\u00e3o do Azoto, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal"}]},{"given":"Olivier","family":"Catrice","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Agronomique, Laboratoire des Interactions Plantes-Microorganismes, UMR441, Castanet-Tolosan, France;"},{"name":"Centre National de la Recherche Scientifique, Laboratoire des Interactions Plantes-Microorganismes, UMR2594, Castanet-Tolosan, France; and"}]},{"given":"Claude","family":"Bruand","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Agronomique, Laboratoire des Interactions Plantes-Microorganismes, UMR441, Castanet-Tolosan, France;"},{"name":"Centre National de la Recherche Scientifique, Laboratoire des Interactions Plantes-Microorganismes, UMR2594, Castanet-Tolosan, France; and"}]},{"given":"Helena","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Biologia Molecular da Assimila\u00e7\u00e3o do Azoto, Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua do Campo Alegre 823, 4150-180 Porto, Portugal"}]},{"given":"Eliane","family":"Meilhoc","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Agronomique, Laboratoire des Interactions Plantes-Microorganismes, UMR441, Castanet-Tolosan, France;"},{"name":"Centre National de la Recherche Scientifique, Laboratoire des Interactions Plantes-Microorganismes, UMR2594, Castanet-Tolosan, France; and"}]}],"member":"1665","reference":[{"key":"b1","doi-asserted-by":"publisher","DOI":"10.1021\/pr900039c"},{"key":"b2","doi-asserted-by":"publisher","DOI":"10.1271\/bbb.120601"},{"key":"b3","doi-asserted-by":"publisher","DOI":"10.3390\/ijms131115193"},{"key":"b4","doi-asserted-by":"publisher","DOI":"10.1099\/00221287-148-3-825"},{"key":"b5","doi-asserted-by":"publisher","DOI":"10.1094\/MPMI-19-0970"},{"key":"b6","doi-asserted-by":"publisher","DOI":"10.1093\/jxb\/ert006"},{"key":"b7","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.arplant.59.032607.092830"},{"key":"b8","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-387661-4.00006-9"},{"key":"b9","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2012.04282.x"},{"key":"b10","doi-asserted-by":"publisher","DOI":"10.1094\/MPMI-19-0363"},{"key":"b11","doi-asserted-by":"publisher","DOI":"10.1023\/A:1006304003770"},{"key":"b12","doi-asserted-by":"publisher","DOI":"10.1016\/S0168-9452(00)00360-5"},{"key":"b13","first-page":"589","volume":"2","author":"Cullimore J. 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