{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:59:22Z","timestamp":1787014762691,"version":"build-2736575974"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2012,10,29]],"date-time":"2012-10-29T00:00:00Z","timestamp":1351468800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":1037,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["wiley.com"],"crossmark-restriction":true},"short-container-title":["New Phytologist"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>\n                    <jats:list list-type=\"bullet\">\n                      <jats:list-item>\n                        <jats:p>\n                          The objective of this study was to investigate the isotopic composition of oxygen bound to phosphate (\u03b4\n                          <jats:sup>18<\/jats:sup>\n                          <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                          \u2010\n                          <jats:styled-content style=\"fixed-case\">PO<\/jats:styled-content>\n                          <jats:sub>4<\/jats:sub>\n                          ) in different phosphorus (\n                          <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                          ) pools in plant leaves. As a model plant we used soybean (\n                          <jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>\n                          <jats:italic>lycine max<\/jats:italic>\n                          cv Toliman) grown in the presence of ample\n                          <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                          in hydroponic cultures.\n                        <\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>\n                          The leaf blades were extracted with 0.3\u00a0M trichloroacetic acid (\n                          <jats:styled-content style=\"fixed-case\">TCA<\/jats:styled-content>\n                          ) and with 10\u00a0M nitric acid. These extractions allowed measurement of the TCA\u2010soluble reactive P (TCA P) that is rapidly cycled within the cell and the total leaf P. The difference between total leaf P and\n                          <jats:styled-content style=\"fixed-case\">TCA<\/jats:styled-content>\n                          P yielded the structural P which includes organic P compounds not extractable by\n                          <jats:styled-content style=\"fixed-case\">TCA<\/jats:styled-content>\n                          .\n                        <\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>\n                          P uptake and its translocation and transformation within the soybean plants lead to an\n                          <jats:sup>18<\/jats:sup>\n                          O enrichment of\n                          <jats:styled-content style=\"fixed-case\">TCA<\/jats:styled-content>\n                          P (\u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O\u2010\n                          <jats:styled-content style=\"fixed-case\">PO<\/jats:styled-content>\n                          <jats:sub>4<\/jats:sub>\n                          between 16.9 and 27.5\u2030) and structural P (\u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O\u2010\n                          <jats:styled-content style=\"fixed-case\">PO<\/jats:styled-content>\n                          <jats:sub>4<\/jats:sub>\n                          between 42.6 and 68.0 \u2030) compared with 12.4\u2030 in the phosphate in the nutrient solution.\n                        <\/jats:p>\n                      <\/jats:list-item>\n                      <jats:list-item>\n                        <jats:p>\n                          \u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O values of phosphate extracted from soybean leaves grown under optimal conditions are greater than the \u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O\u2010\n                          <jats:styled-content style=\"fixed-case\">PO<\/jats:styled-content>\n                          <jats:sub>4<\/jats:sub>\n                          values of the provided P source. Furthermore, the \u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O\u2010\n                          <jats:styled-content style=\"fixed-case\">PO<\/jats:styled-content>\n                          <jats:sub>4<\/jats:sub>\n                          of\n                          <jats:styled-content style=\"fixed-case\">TCA<\/jats:styled-content>\n                          P seems to be controlled by the \u03b4\n                          <jats:sup>18<\/jats:sup>\n                          O of leaf water and the activity of inorganic pyrophosphatase or other pyrophosphatases.\n                        <\/jats:p>\n                      <\/jats:list-item>\n                    <\/jats:list>\n                  <\/jats:p>","DOI":"10.1111\/j.1469-8137.2012.04379.x","type":"journal-article","created":{"date-parts":[[2012,10,29]],"date-time":"2012-10-29T13:46:27Z","timestamp":1351518387000},"page":"186-193","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":56,"title":["<sup>18<\/sup>\n                    O enrichment in phosphorus pools extracted from soybean leaves"],"prefix":"10.1111","volume":"197","author":[{"given":"Verena","family":"Pfahler","sequence":"first","affiliation":[{"name":"Institute of Agricultural Sciences ETH Zurich Eschikon 33 8315 Lindau Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thilo","family":"D\u00fcrr\u2010Auster","sequence":"additional","affiliation":[{"name":"Institute of Agricultural Sciences ETH Zurich Eschikon 33 8315 Lindau Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federica","family":"Tamburini","sequence":"additional","affiliation":[{"name":"Institute of Agricultural Sciences ETH Zurich Eschikon 33 8315 Lindau Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefano","family":"M. 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