{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T04:38:46Z","timestamp":1787891926604,"version":"build-2784847793"},"reference-count":60,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T00:00:00Z","timestamp":1772064000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T00:00:00Z","timestamp":1772064000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000893","name":"Simons Foundation","doi-asserted-by":"publisher","award":["561645"],"award-info":[{"award-number":["561645"]}],"id":[{"id":"10.13039\/100000893","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000879","name":"Alfred P. 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Quantification of the role of external carbonic anhydrase (eCA) was enabled through the addition of a surface boundary layer to the numerical model.\n <\/jats:p>\n <\/jats:list-item>\n \n \n We found that\n F. cylindrus<\/jats:italic>\n displayed an active CCM across a wide range of inorganic carbon availability, but that the CCM was not required under air\u2010equilibrated CO\n 2<\/jats:sub>\n concentrations. eCA was an essential component of the CCM, facilitating HCO\n 3<\/jats:sub>\n \u2212<\/jats:sup>\n uptake. When eCA was inhibited, CO\n 2<\/jats:sub>\n was the primary carbon source. The eCA role in supporting HCO\n 3<\/jats:sub>\n \u2212<\/jats:sup>\n uptake was independent of temperature changes.\n <\/jats:p>\n <\/jats:list-item>\n \n \n eCA\u2010supported HCO\n 3<\/jats:sub>\n \u2212<\/jats:sup>\n transport is likely a mechanism for\n F. cylindrus<\/jats:italic>\n to cope with fluctuating concentrations of inorganic carbon over a dynamic seasonal cycle in polar oceans. Our work challenges the hypothesis that CCMs are not required at cold temperatures.\n <\/jats:p>\n <\/jats:list-item>\n <\/jats:list>\n <\/jats:p>","DOI":"10.1111\/nph.70996","type":"journal-article","created":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T11:27:20Z","timestamp":1772969240000},"page":"1161-1171","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Role of extracellular carbonic anhydrase in the polar diatom\n Fragilariopsis cylindrus<\/i>"],"prefix":"10.1111","volume":"251","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9831-8575","authenticated-orcid":false,"given":"Meng","family":"Li","sequence":"first","affiliation":[{"name":"School of Oceanography University of Washington Seattle 98195 WA USA"},{"name":"State Key Laboratory of Forage Breeding\u2010by\u2010Design and Utilization, Photosynthesis Research Center, Institute of Botany Chinese Academy of Sciences Beijing 100093 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