{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T04:36:19Z","timestamp":1776746179238,"version":"3.51.2"},"reference-count":33,"publisher":"Proceedings of the National Academy of Sciences","issue":"2","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2011,1,11]]},"abstract":"<jats:p>\n            The essential mineral nutrient potassium (K\n            <jats:sup>+<\/jats:sup>\n            ) is the most important inorganic cation for plants and is recognized as a limiting factor for crop yield and quality. Nonetheless, it is only partially understood how K\n            <jats:sup>+<\/jats:sup>\n            contributes to plant productivity. K\n            <jats:sup>+<\/jats:sup>\n            is used as a major active solute to maintain turgor and to drive irreversible and reversible changes in cell volume. K\n            <jats:sup>+<\/jats:sup>\n            also plays an important role in numerous metabolic processes, for example, by serving as an essential cofactor of enzymes. Here, we provide evidence for an additional, previously unrecognized role of K\n            <jats:sup>+<\/jats:sup>\n            in plant growth. By combining diverse experimental approaches with computational cell simulation, we show that K\n            <jats:sup>+<\/jats:sup>\n            circulating in the phloem serves as a decentralized energy storage that can be used to overcome local energy limitations. Posttranslational modification of the phloem-expressed\n            <jats:italic>Arabidopsis<\/jats:italic>\n            K\n            <jats:sup>+<\/jats:sup>\n            channel AKT2 taps this \u201cpotassium battery,\u201d which then efficiently assists the plasma membrane H\n            <jats:sup>+<\/jats:sup>\n            -ATPase in energizing the transmembrane phloem (re)loading processes.\n          <\/jats:p>","DOI":"10.1073\/pnas.1009777108","type":"journal-article","created":{"date-parts":[[2010,12,28]],"date-time":"2010-12-28T01:45:14Z","timestamp":1293500714000},"page":"864-869","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":206,"title":["Potassium (K\n            <sup>+<\/sup>\n            ) gradients serve as a mobile energy source in plant vascular tissues"],"prefix":"10.1073","volume":"108","author":[{"given":"Pawel","family":"Gajdanowicz","sequence":"first","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"}]},{"given":"Erwan","family":"Michard","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"},{"name":"Biochimie et Physiologie Mol\u00e9culaire des Plantes, Centre National de la Recherche Scientifique Unit\u00e9 Mixte de Recherche 5004, Institut National de la Recherche Agronomique U386, Montpellier SupAgro, Universit\u00e9 Montpellier II, F-34060 Montpellier cedex 2, France;"}]},{"given":"Michael","family":"Sandmann","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"}]},{"given":"Marcio","family":"Rocha","sequence":"additional","affiliation":[{"name":"Max-Planck-Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany; and"}]},{"given":"Luiz Gustavo Guedes","family":"Corr\u00eaa","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"},{"name":"Max-Planck-Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany; and"}]},{"given":"Santiago J.","family":"Ram\u00edrez-Aguilar","sequence":"additional","affiliation":[{"name":"Max-Planck-Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany; and"}]},{"given":"Judith L.","family":"Gomez-Porras","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"}]},{"given":"Wendy","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"},{"name":"Centro de Bioinform\u00e1tica y Simulaci\u00f3n Molecular, Universidad de Talca, Talca, Chile"}]},{"given":"Jean-Baptiste","family":"Thibaud","sequence":"additional","affiliation":[{"name":"Biochimie et Physiologie Mol\u00e9culaire des Plantes, Centre National de la Recherche Scientifique Unit\u00e9 Mixte de Recherche 5004, Institut National de la Recherche Agronomique U386, Montpellier SupAgro, Universit\u00e9 Montpellier II, F-34060 Montpellier cedex 2, France;"}]},{"given":"Joost T.","family":"van Dongen","sequence":"additional","affiliation":[{"name":"Max-Planck-Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany; and"}]},{"given":"Ingo","family":"Dreyer","sequence":"additional","affiliation":[{"name":"Heisenberg Group of Biophysics and Molecular Plant Biology, Institute of Biochemistry and Biology, University of Potsdam, D-14476 Potsdam-Golm, Germany;"}]}],"member":"341","published-online":{"date-parts":[[2010,12,27]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tplants.2009.04.001"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0014-5793(01)02832-0"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-313X.2005.02566.x"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1085\/jgp.200509413"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-313X.2001.t01-1-01116.x"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.21.12186"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-313X.2002.01487.x"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-313X.2007.03071.x"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.13.7581"},{"key":"e_1_3_3_10_2","first-page":"837","article-title":"A shaker-like K(+) channel with weak rectification is expressed in both source and sink phloem tissues of Arabidopsis","volume":"12","author":"Lacombe B","year":"2000","unstructured":"B Lacombe, et al., A shaker-like K(+) channel with weak rectification is expressed in both source and sink phloem tissues of Arabidopsis. Plant Cell 12, 837\u2013851 (2000).","journal-title":"Plant Cell"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3040.2009.02033.x"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1104\/pp.010549"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1104\/pp.107.105940"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-313x.2000.00791.x"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00425-002-0895-1"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-313X.2003.01766.x"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M212720200"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1104\/pp.010193"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00425-008-0767-4"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2008.02749.x"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M501785200"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-313X.2006.03000.x"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0012605"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.271.41.25139"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1007\/s002329900275"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1104\/pp.102.017202"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.280.5365.918"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cell.2006.06.011"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M109.017574"},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.1038\/cr.2010.74"},{"key":"e_1_3_3_31_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00028908"},{"key":"e_1_3_3_32_2","first-page":"1194","article-title":"In planta Agrobacterium mediated gene transfer by infiltration of adult Arabidopsis plants","volume":"316","author":"Bechtold N","year":"1993","unstructured":"N Bechtold, J Ellis, G Pelletier, In planta Agrobacterium mediated gene transfer by infiltration of adult Arabidopsis plants. CR Acad Sci 316, 1194\u20131199 (1993).","journal-title":"CR Acad Sci"},{"key":"e_1_3_3_33_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-313X.2008.03479.x"}],"container-title":["Proceedings of the National Academy of Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pnas.org\/doi\/pdf\/10.1073\/pnas.1009777108","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,4,12]],"date-time":"2022-04-12T23:32:28Z","timestamp":1649806348000},"score":1,"resource":{"primary":{"URL":"https:\/\/pnas.org\/doi\/full\/10.1073\/pnas.1009777108"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,12,27]]},"references-count":33,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2011,1,11]]}},"alternative-id":["10.1073\/pnas.1009777108"],"URL":"https:\/\/doi.org\/10.1073\/pnas.1009777108","relation":{},"ISSN":["0027-8424","1091-6490"],"issn-type":[{"value":"0027-8424","type":"print"},{"value":"1091-6490","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,12,27]]},"assertion":[{"value":"2010-12-27","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}