{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T18:18:18Z","timestamp":1788286698738,"version":"build-2803163510"},"reference-count":72,"publisher":"National Academy of Sciences","issue":"36","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Danish Council for Independent Research, Technology and Production Sciences","award":["0602-01412B"],"award-info":[{"award-number":["0602-01412B"]}]},{"DOI":"10.13039\/501100000268","name":"UKRI | Biotechnology and Biological Sciences Research Council","doi-asserted-by":"publisher","award":["BB\/X011933\/1 BB\/N008723\/1"],"award-info":[{"award-number":["BB\/X011933\/1 BB\/N008723\/1"]}],"id":[{"id":"10.13039\/501100000268","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001352","name":"National University of Singapore","doi-asserted-by":"publisher","award":["postdoc fellowship"],"award-info":[{"award-number":["postdoc fellowship"]}],"id":[{"id":"10.13039\/501100001352","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2026,9,8]]},"abstract":"<jats:p>\n                    Plants acquire inorganic phosphate (Pi) either directly through their roots or through symbiosis with arbuscular mycorrhizal (AM) fungi, and the direct uptake pathway is downregulated when the symbiosis establishes. As atmospheric CO\n                    <jats:sub>2<\/jats:sub>\n                    concentrations rise, it is critical to understand how increased carbon availability alters plant nutrient acquisition strategies, with implications for crop productivity and carbon sequestration alike. Here, we investigated the interaction between elevated CO\n                    <jats:sub>2<\/jats:sub>\n                    , soil Pi availability, and AM symbiosis in the major cereal crop rice. Elevated CO\n                    <jats:sub>2<\/jats:sub>\n                    enhanced mycorrhizal colonization, phosphorus uptake, and crop biomass. We employed the rice\n                    <jats:italic toggle=\"yes\">pt11<\/jats:italic>\n                    mutant, which is defective in symbiotic Pi transport, in combination with split-root and radiotracer approaches to demonstrate that suppression of the direct Pi uptake pathways occurs locally in colonized roots, requiring functional symbiotic Pi transport. Likewise, changes in root architecture\u2014notably reduced fine lateral root development\u2014occur with local regulation dependent on processes downstream of PT11. Transcriptomic analyses identify symbiotic Pi transport as a regulatory checkpoint of the suppression of direct nutrient uptake and the progression of the mycorrhizal transcriptional program. Together, these findings reveal that in rice, rising CO\n                    <jats:sub>2<\/jats:sub>\n                    enhances AM symbiosis not necessarily by activating canonical symbiosis signaling pathways, but rather by reinforcing symbiotic Pi uptake through enhanced carbon availability, thereby reshaping root nutrient acquisition. This work provides a mechanistic framework for integrating plant\u2013microbe interactions into strategies aimed at sustaining crop productivity and managing carbon in a high-CO\n                    <jats:sub>2<\/jats:sub>\n                    world.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2606406123","type":"journal-article","created":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T17:58:11Z","timestamp":1788285491000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":0,"title":["Elevated CO\n                    <sub>2<\/sub>\n                    reinforces PT11-dependent symbiotic phosphate uptake to reprogram root nutrient acquisition in rice"],"prefix":"10.1073","volume":"123","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2840-0407","authenticated-orcid":false,"given":"Chai Hao","family":"Chiu","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/013meh722","id-type":"ROR","asserted-by":"publisher"}],"name":"Crop Science Centre, Department of Plant Sciences, University of Cambridge","place":["Cambridge, United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-8605-825X","authenticated-orcid":false,"given":"Mette","family":"Gr\u00f8nlund","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/035b05819","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Plant and Environmental Sciences, University of Copenhagen","place":["Frederiksberg C, Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas Christian","family":"de Bang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/035b05819","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Plant and Environmental Sciences, University of Copenhagen","place":["Frederiksberg C, Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie","family":"Watts-Williams","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/035b05819","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Plant and Environmental Sciences, University of Copenhagen","place":["Frederiksberg C, Denmark"]},{"id":[{"id":"https:\/\/ror.org\/04qw24q55","id-type":"ROR","asserted-by":"publisher"}],"name":"Centre for Crop Systems Analysis, Department of Plant Sciences, Wageningen University & Research","place":["Wageningen, The Netherlands"]},{"id":[{"id":"https:\/\/ror.org\/028g18b61","id-type":"ROR","asserted-by":"publisher"}],"name":"The School of Agriculture, Food and Wine, College of Science, Adelaide University","place":["Urrbrae, Australia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-2187-7329","authenticated-orcid":false,"given":"Fang","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Plant Sciences","place":["Cambridge, United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krystyna Anna","family":"Kelly","sequence":"additional","affiliation":[{"name":"Department of Plant Sciences","place":["Cambridge, United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4548-8535","authenticated-orcid":false,"given":"Iver","family":"Jakobsen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/035b05819","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Plant and Environmental Sciences, University of Copenhagen","place":["Frederiksberg C, Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7279-7632","authenticated-orcid":false,"given":"Uta","family":"Paszkowski","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/013meh722","id-type":"ROR","asserted-by":"publisher"}],"name":"Crop Science Centre, Department of Plant Sciences, University of Cambridge","place":["Cambridge, United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2026,9,1]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.2153-3490.1976.tb00701.x"},{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2486.2008.01594.x"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/gcb.15375"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2004.01224.x"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1111\/nph.17802"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-8137.2001.00105.x"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8137.2006.01688.x"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.3389\/fmicb.2018.01248"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41559-025-02842-0"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1013351617532"},{"key":"e_1_3_4_11_2","volume-title":"Marschner\u2019s 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M. L\u00f3pez-Lorca O. L\u00f3pez-Castillo M. J. Molina-Luz\u00f3n N. Ferrol Arbuscular mycorrhiza modulates iron distribution and vacuolar iron transporter expression in tomato whereas iron limitation reduces mycorrhization. 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