{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T14:19:18Z","timestamp":1790000358985,"version":"4.0.1"},"reference-count":0,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Plants are rarely exposed to ultraviolet C (UV-C) radiation because it is absorbed by the ozone layer. Nevertheless, low doses of UV-C can induce physiological and developmental responses, although the underlying hormonal mechanisms are not well understood. We show that a single one-minute UV-C pulse (20 W\/m2) is associated with temporally distinct differences in gibberellin (GA) homeostasis in Arabidopsis. At early sampling times, levels of GA12, a precursor of bioactive GAs, are lower in UV-C-treated plants compared with controls. This is accompanied by lower transcript levels of KS and KAO2. Similarly, bioactive GA4 levels are lower in UV-C-treated plants. These results suggest that UV-C suppresses the early stages of GA-biosynthesis. At later time points, however, the GA4 levels are higher in UV-C-treated plants than in controls, coinciding with earlier flowering, enhanced growth, and increased fertility. The GA-signalling mutant gdella and the early GA-biosynthesis mutants kao1 and kao2 do not show wild-type developmental responses to UV-C, indicating that GA biosynthesis and signalling contribute to this response. In contrast, the C19-GA 2-oxidase quintuple mutant (C19-2oxq) retained wild-type-like responses, suggesting a limited role for C19-GA 2-oxidation. These results highlight the importance of GA-homeostasis in UV-C-mediated regulation of plant development.<\/jats:p>","DOI":"10.1093\/jxb\/erag480","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:24:31Z","timestamp":1789755871000},"source":"Crossref","is-referenced-by-count":0,"title":["A single UV-C pulse modulates Gibberellin homeostasis and Plant Development in Arabidopsis"],"prefix":"10.1093","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3898-6130","authenticated-orcid":false,"given":"Maria J","family":"Pimenta Lange","sequence":"first","affiliation":[{"name":"Institute of Plant Biology, Technical University of Braunschweig , D-38106 Braunschweig ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-4740-3044","authenticated-orcid":false,"given":"Adolfo Calvo-Parra","family":"Mart\u00ednez","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology, Technical University of Braunschweig , D-38106 Braunschweig ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1856-9011","authenticated-orcid":false,"given":"Johanna","family":"Schwarze","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology, Technical University of Braunschweig , D-38106 Braunschweig ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1294-2647","authenticated-orcid":false,"given":"Theo","family":"Lange","sequence":"additional","affiliation":[{"name":"Institute of Plant Biology, Technical University of Braunschweig , D-38106 Braunschweig ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,9,21]]},"container-title":["Journal of Experimental Botany"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/jxb\/advance-article-pdf\/doi\/10.1093\/jxb\/erag480\/71280936\/erag480.pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jxb\/advance-article-pdf\/doi\/10.1093\/jxb\/erag480\/71280936\/erag480.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T13:37:56Z","timestamp":1789997876000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jxb\/advance-article\/doi\/10.1093\/jxb\/erag480\/8824237"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,21]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1093\/jxb\/erag480","relation":{},"ISSN":["0022-0957","1460-2431"],"issn-type":[{"value":"0022-0957","type":"print"},{"value":"1460-2431","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,21]]},"article-number":"erag480"}}