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Seed storage in the dry state, known as after\u2010ripening, is associated with an alleviation of embryonic dormancy allowing subsequent germination at suboptimal temperatures. To identify the process by which dormancy is broken during after\u2010ripening, we focused on the role of reactive oxygen species (ROS) in this phenomenon. After\u2010ripening entailed a progressive accumulation of ROS, namely superoxide anions and hydrogen peroxide, in cells of embryonic axes. This accumulation, which was investigated at the cellular level by electron microscopy, occurred concomitantly with lipid peroxidation and oxidation (carbonylation) of specific embryo proteins. Incubation of dormant seeds for 3\u2003h in the presence of hydrogen cyanide (a compound that breaks dormancy) or methylviologen (a ROS\u2010generating compound) also released dormancy and caused the oxidation of a specific set of embryo proteins. From these observations, we propose a novel mechanism for seed dormancy alleviation. This mechanism involves ROS production and targeted changes in protein carbonylation patterns.<\/jats:p>","DOI":"10.1111\/j.1365-313x.2007.03063.x","type":"journal-article","created":{"date-parts":[[2007,3,21]],"date-time":"2007-03-21T15:59:15Z","timestamp":1174492755000},"page":"452-465","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":489,"title":["ROS production and protein oxidation as a novel mechanism for seed dormancy alleviation"],"prefix":"10.1111","volume":"50","author":[{"given":"Krystyna","family":"Oracz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hayat El\u2010Maarouf","family":"Bouteau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jill M.","family":"Farrant","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keren","family":"Cooper","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maya","family":"Belghazi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudette","family":"Job","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dominique","family":"Job","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fran\u00e7oise","family":"Corbineau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christophe","family":"Bailly","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,3,21]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/1438-9312(200201)104:1<65::AID-EJLT65>3.0.CO;2-3"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0308-8146(00)00102-3"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1079\/SSR2004159"},{"key":"e_1_2_5_5_1","volume-title":"Seeds: Ecology, Biogeography and Evolution of Dormancy and Germination","author":"Baskin J.M.","year":"1998"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.272.33.20313"},{"key":"e_1_2_5_7_1","first-page":"209","article-title":"Localization of hydrogen peroxide accumulation during the hypersensitive reaction of lettuce cells to Pseudomonas syringae pv. phaseolicola","volume":"9","author":"Bestwick C.S.","year":"1997","journal-title":"Plant Cell"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00425-005-0116-9"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1105\/tpc.9.7.1055"},{"key":"e_1_2_5_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-1002-8"},{"key":"e_1_2_5_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/0003-2697(87)90489-1"},{"key":"e_1_2_5_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/elps.1150080203"},{"key":"e_1_2_5_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-3054.1991.tb00114.x"},{"key":"e_1_2_5_14_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1677-04202002000200007"},{"key":"e_1_2_5_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11103-005-0953-8"},{"key":"e_1_2_5_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0003-2697(76)90527-3"},{"key":"e_1_2_5_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-3054.1984.tb04248.x"},{"key":"e_1_2_5_18_1","doi-asserted-by":"publisher","DOI":"10.1006\/bbrc.1996.0521"},{"key":"e_1_2_5_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9258(19)61523-1"},{"key":"e_1_2_5_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-313X.2006.02738.x"},{"key":"e_1_2_5_21_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00425-006-0259-3"},{"key":"e_1_2_5_22_1","doi-asserted-by":"publisher","DOI":"10.1104\/pp.106.087452"},{"key":"e_1_2_5_23_1","doi-asserted-by":"publisher","DOI":"10.1093\/jxb\/eri245"},{"key":"e_1_2_5_24_1","doi-asserted-by":"publisher","DOI":"10.1104\/pp.89.3.879"},{"key":"e_1_2_5_25_1","first-page":"175","article-title":"Some aspects of metabolic regulation of cereal seed germination and dormancy","volume":"16","author":"C\u00f4me D.","year":"1988","journal-title":"Seed Sci. 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