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dc.contributor.authorZhang, J.-
dc.contributor.authorZhou, M.-
dc.contributor.authorGe, Z., Shen, J.-
dc.contributor.authorZhou, C.-
dc.contributor.authorGotor, Cecilia-
dc.contributor.authorRomero, Luis C.-
dc.contributor.authorDuan, X.-
dc.contributor.authorLiu, X.-
dc.contributor.authorWu, D.-
dc.contributor.authorYin, X.-
dc.contributor.authorXie, Y.-
dc.date.accessioned2020-03-25T10:40:27Z-
dc.date.available2020-03-25T10:40:27Z-
dc.date.issued2020-
dc.identifierdoi: 10.1002/pce.13685-
dc.identifierissn: 0140-7791-
dc.identifier.citationPlant, Cell and Environment 43: 624- 636 (2020)-
dc.identifier.urihttp://hdl.handle.net/10261/205094-
dc.description.abstractRecent studies have demonstrated that hydrogen sulfide (H2S) produced through the activity of L-cysteine desulfhydrase (DES1) is an important gaseous signaling molecule in plants that could participate in abscisic acid (ABA)-induced stomatal closure. However, the coupling of the DES1/H2S signaling pathways to guard cell movement has not been thoroughly elucidated. The results presented here provide genetic evidence for a physiologically relevant signaling pathway that governs guard cell-in situ DES1/H2S function in stomatal closure. We discovered that ABA-activated DES1 produces H2S in guard cells. The impaired guard cell ABA phenotype of des1 mutant can be fully complemented when DES1/H2S function has been specifically rescued in guard cells and epidermal cells, but not mesophyll cells. This research further characterized DES1/H2S function in the regulation of LONG HYPOCOTYL1 (HY1, a member of the heme oxygenase family) signaling. ABA-induced DES1 expression and H2S production are hyper-activated in the hy1 mutant, both of which can be fully abolished by the addition of H2S scavenger. Impaired guard cell ABA phenotype of des1/hy1 can be restored by H2S donors. Taken together, this research indicated that guard cell-in situ DES1 function is involved in ABA-induced stomatal closure, which also acts as a pivotal hub in regulating HY1 signaling.-
dc.languageeng-
dc.publisherBlackwell Publishing-
dc.relation.isversionofPostprint-
dc.rightsembargoedAccess-
dc.subjectDES1-
dc.subjectHY1-
dc.subjectHydrogen sulfide-
dc.titleABA-triggered guard cell L-cysteine desulfhydrase function and in situ hydrogen sulfide production contributes to HY1-modulated stomatal closure-
dc.typeartículo-
dc.relation.publisherversionhttp://dx.doi.org/10.1002/pce.13685-
dc.embargo.terms2020-11-15-
dc.date.updated2020-03-25T10:40:28Z-
dc.relation.csic-
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