{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T22:25:40Z","timestamp":1787005540359,"version":"build-2736575974"},"reference-count":52,"publisher":"CSIRO Publishing","issue":"2","license":[{"start":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T00:00:00Z","timestamp":1748304000000},"content-version":"vor","delay-in-days":1719,"URL":"https:\/\/doi.org\/10.1071\/journalslicense"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,1,4]]},"abstract":"<jats:p>The role of hydrogen sulfide (H2S) and its relationship with hydrogen peroxide (H2O2) in brassinosteroid-induced stomatal closure in Arabidopsis thaliana (L.) Heynh. were investigated. In the present study, 2,4-epibrassinolide (EBR, a bioactive BR) induced stomatal closure in the wild type, the effects were inhibited by H2S scavenger and synthesis inhibitors, and H2O2 scavengers and synthesis inhibitor. However, EBR failed to close the stomata of mutants Atl-cdes, Atd-cdes, AtrbohF and AtrbohD\/F. Additionally, EBR induced increase of L-\/D-cysteine desulfhydrase (L-\/D-CDes) activity, H2S production, and H2O2 production in the wild type, and the effects were inhibited by H2S scavenger and synthesis inhibitors, and H2O2 scavengers and synthesis inhibitor respectively. Furthermore, EBR increased H2O2 levels in the guard cells of AtrbohD mutant, but couldn\u2019t raise H2O2 levels in the guard cells of AtrbohF and AtrbohD\/F mutants. Next, scavengers and synthesis inhibitor of H2O2 could significantly inhibit EBR-induced rise of L-\/D-CDes activity and H2S production in the wild type, but H2S scavenger and synthesis inhibitors failed to repress EBR-induced H2O2 production. EBR could increase H2O2 levels in the guard cells of Atl-cdes and Atd-cdes mutants, but EBR failed to induce increase of L-\/D-CDes activity and H2S production in AtrbohF and AtrbohD\/F mutants. Therefore, we conclude that H2S and H2O2 are involved in the signal transduction pathway of EBR-induced stomatal closure. Altogether, our data suggested that EBR induces AtrbohF-dependent H2O2 production and subsequent AtL-CDes-\/AtD-CDes-catalysed H2S production, and finally closes stomata in A. thaliana.<\/jats:p>","DOI":"10.1071\/fp20205","type":"journal-article","created":{"date-parts":[[2020,9,10]],"date-time":"2020-09-10T19:21:11Z","timestamp":1599765671000},"page":"195-205","source":"Crossref","is-referenced-by-count":26,"title":["Hydrogen sulfide induced by hydrogen peroxide mediates brassinosteroid-induced stomatal closure of Arabidopsis thaliana"],"prefix":"10.1071","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7040-3209","authenticated-orcid":true,"given":"Yinli","family":"Ma","sequence":"first","affiliation":[{"name":"ACollege of Life Sciences, Shanxi Normal University, Linfen 041004, People\u2019s Republic of China."},{"name":"BCorresponding author. 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