{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T09:04:26Z","timestamp":1793351066535,"version":"4.5.0"},"reference-count":37,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2013,4,11]],"date-time":"2013-04-11T00:00:00Z","timestamp":1365638400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Plant Biol J"],"published-print":{"date-parts":[[2013,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Low temperatures and high light cause imbalances in primary and secondary reactions of photosynthesis, and thus can result in oxidative stress. Plants employ a range of low\u2010molecular weight antioxidants and antioxidant enzymes to prevent oxidative damage, and antioxidant defence is considered an important component of stress tolerance. To figure out whether oxidative stress and antioxidant defence are key factors defining the different cold acclimation capacities of natural accessions of the model plant <jats:italic><jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>rabidopsis thaliana<\/jats:italic>, we investigated hydrogen peroxide (<jats:styled-content style=\"fixed-case\">H<\/jats:styled-content><jats:sub>2<\/jats:sub><jats:styled-content style=\"fixed-case\">O<\/jats:styled-content><jats:sub>2<\/jats:sub>) production, antioxidant enzyme activity and lipid peroxidation during a time course of cold treatment and exposure to high light in four differentially cold\u2010tolerant natural accessions of <jats:italic><jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>rabidopsis<\/jats:italic> (<jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>24, Nd, Rsch, Te) that span the European distribution range of the species. All accessions except <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>sch (from <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>ussia) had elevated <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content><jats:sub>2<\/jats:sub><jats:styled-content style=\"fixed-case\">O<\/jats:styled-content><jats:sub>2<\/jats:sub> in the cold, indicating that production of reactive oxygen species is part of the cold response in <jats:italic><jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>rabidopsis<\/jats:italic>. Glutathione reductase activity increased in all but <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>sch, while ascorbate peroxidase and superoxide dismutase were unchanged and catalase decreased in all but <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>sch. Under high light, the Scandinavian accession <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content>e had elevated levels of <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content><jats:sub>2<\/jats:sub><jats:styled-content style=\"fixed-case\">O<\/jats:styled-content><jats:sub>2<\/jats:sub>. Te appeared most sensitive to oxidative stress, having higher malondialdehyde (<jats:styled-content style=\"fixed-case\">MDA<\/jats:styled-content>) levels in the cold and under high light, while only high light caused elevated <jats:styled-content style=\"fixed-case\">MDA<\/jats:styled-content> in the other accessions. Although the most freezing\u2010tolerant, <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content>e had the highest sensitivity to oxidative stress. No correlation was found between freezing tolerance and activity of antioxidant enzymes in the four accessions investigated, arguing against a key role for antioxidant defence in the differential cold acclimation capacities of <jats:italic><jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>rabidopsis<\/jats:italic> accessions.<\/jats:p>","DOI":"10.1111\/j.1438-8677.2012.00718.x","type":"journal-article","created":{"date-parts":[[2013,4,11]],"date-time":"2013-04-11T16:50:40Z","timestamp":1365699040000},"page":"982-990","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Responses of antioxidant enzymes to cold and high light are not correlated to freezing tolerance in natural accessions of <i><scp>A<\/scp>rabidopsis thaliana<\/i>"],"prefix":"10.1111","volume":"15","author":[{"given":"H.","family":"Distelbarth","sequence":"first","affiliation":[{"name":"Department of Plant Biotechnology Institute of Biology University of Stuttgart Stuttgart Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.","family":"N\u00e4gele","sequence":"additional","affiliation":[{"name":"Department of Plant Biotechnology Institute of Biology University of Stuttgart Stuttgart Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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