{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T18:54:47Z","timestamp":1772996087386,"version":"3.50.1"},"reference-count":54,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,8,3]],"date-time":"2025-08-03T00:00:00Z","timestamp":1754179200000},"content-version":"vor","delay-in-days":33,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T00:00:00Z","timestamp":1751328000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100009708","name":"Novo Nordisk Fonden","doi-asserted-by":"publisher","award":["NNF21OC0066760"],"award-info":[{"award-number":["NNF21OC0066760"]}],"id":[{"id":"10.13039\/501100009708","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002341","name":"Research Council of Finland","doi-asserted-by":"publisher","award":["343527"],"award-info":[{"award-number":["343527"]}],"id":[{"id":"10.13039\/501100002341","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002341","name":"Research Council of Finland","doi-asserted-by":"publisher","award":["346140"],"award-info":[{"award-number":["346140"]}],"id":[{"id":"10.13039\/501100002341","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Physiologia Plantarum"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Increasing the availability of fresh vegetables and reducing food waste are essential for healthy and sustainable production. However, fresh\u2010cut vegetables such as lettuce (\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Lactuca sativa<\/jats:italic>\n                    <\/jats:styled-content>\n                    L.) often experience rapid quality loss after harvest and processing. To maintain freshness in retail, modified atmosphere packaging (MAP) with low oxygen (O\n                    <jats:sub>2<\/jats:sub>\n                    ) and high carbon dioxide (CO\n                    <jats:sub>2<\/jats:sub>\n                    ) concentrations, combined with refrigeration, is commonly used. Packaged leaves are then displayed under dark or low\u2010light conditions. The postharvest physiology of lettuce under these conditions (including changes in energy metabolism, photosynthesis, senescence progression, and light\u2010dependent metabolic alterations) remains poorly understood, limiting the development of strategies to extend shelf life. Using spectroscopic and biochemical approaches, we investigated the physiological changes in fresh\u2010cut lettuce stored in MAP under refrigeration in either darkness or constant low light. Our analysis revealed distinct light\u2010dependent and light\u2010independent adjustments in photosynthesis. MAP triggered rapid and dramatic changes in photosynthetic light reactions, detectable within 1\u2009h of packaging, as observed by pulse amplitude modulated (PAM) and OJIP kinetics assays. These changes were likely associated with compromised electron sink strength in the photosynthetic electron transfer chain and altered dynamics of the energy component of nonphotochemical quenching (qE\u2010NPQ). Notably, these functional alterations coincided with only minor modifications in photosynthetic supercomplexes, as determined by blue native gel electrophoresis. The MAP\u2010induced changes in photosynthesis deteriorated during storage in darkness but were reversed by storage under low light, likely due to photosynthetic gas exchange. Our findings provide new insights into photosynthesis of packaged lettuce and highlight promising physiological readouts for assessing lettuce quality in retail settings.\n                  <\/jats:p>","DOI":"10.1111\/ppl.70433","type":"journal-article","created":{"date-parts":[[2025,8,4]],"date-time":"2025-08-04T06:00:50Z","timestamp":1754287250000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Postharvest Dynamics of Photosynthesis in Fresh\u2010Cut Lettuce"],"prefix":"10.1111","volume":"177","author":[{"given":"Priscille","family":"Steensma","sequence":"first","affiliation":[{"name":"Department of Food and Nutrition University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7199-1882","authenticated-orcid":false,"given":"Alexey","family":"Shapiguzov","sequence":"additional","affiliation":[{"name":"Production Systems Natural Resources Institute Finland (Luke)  Turku Finland"},{"name":"Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences University of Helsinki  Helsinki Finland"},{"name":"Viikki Plant Science Centre University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leevi","family":"Annala","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julia P.","family":"Vainonen","sequence":"additional","affiliation":[{"name":"Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences University of Helsinki  Helsinki Finland"},{"name":"Viikki Plant Science Centre University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kirsi S.","family":"Mikkonen","sequence":"additional","affiliation":[{"name":"Department of Food and Nutrition University of Helsinki  Helsinki Finland"},{"name":"Helsinki Institute of Sustainability Science (HELSUS) University of Helsinki  Helsinki Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saijaliisa","family":"Kangasj\u00e4rvi","sequence":"additional","affiliation":[{"name":"Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences University of Helsinki  Helsinki Finland"},{"name":"Viikki Plant Science Centre University of Helsinki  Helsinki Finland"},{"name":"Department of Agricultural Sciences, Faculty of Agriculture and Forestry University of Helsinki  Helsinki 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