New Clothes for the Jasmonic Acid Receptor COI1: Delayed Abscission, Meristem Arrest and Apical Dominance

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dc.contributor.authorKim, Joonyup
dc.contributor.authorDotson, Bradley
dc.contributor.authorRey, Camila
dc.contributor.authorLindsey, Joshua
dc.contributor.authorBleecker, Anthony B.
dc.contributor.authorBinder, Brad M.
dc.contributor.authorPatterson, Sara E.
dc.date.accessioned2024-01-10T13:51:07Z
dc.date.available2024-01-10T13:51:07Z
dc.date.issued2013
dc.description.abstractIn a screen for delayed floral organ abscission in Arabidopsis, we have identified a novel mutant of CORONATINE INSENSITIVE 1 (COI1), the F-box protein that has been shown to be the jasmonic acid (JA) co-receptor. While JA has been shown to have an important role in senescence, root development, pollen dehiscence and defense responses, there has been little focus on its critical role in floral organ abscission. Abscission, or the detachment of organs from the main body of a plant, is an essential process during plant development and a unique type of cell separation regulated by endogenous and exogenous signals. Previous studies have indicated that auxin and ethylene are major plant hormones regulating abscission; and here we show that regulation of floral organ abscission is also controlled by jasmonic acid in Arabidopsis thaliana. Our characterization of coi1-1 and a novel allele (coi1-37) has also revealed an essential role in apical dominance and floral meristem arrest. In this study we provide genetic evidence indicating that delayed abscission 4 (dab4-1) is allelic to coi1-1 and that meristem arrest and apical dominance appear to be evolutionarily divergent functions for COI1 that are governed in an ecotype-dependent manner. Further characterizations of ethylene and JA responses of dab4-1/coi1-37 also provide new information suggesting separate pathways for ethylene and JA that control both floral organ abscission and hypocotyl growth in young seedlings. Our study opens the door revealing new roles for JA and its interaction with other hormones during plant development.
dc.description.funderUSDA HATCH WISO
dc.description.funderNSF
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1371/journal.pone.0060505
dc.identifier.issn1932-6203
dc.identifier.pubmedidMEDLINE:23573263
dc.identifier.pubmedidMEDLINE:24312169
dc.identifier.urihttps://doi.org/10.1371/journal.pone.0060505
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79578
dc.identifier.wosidWOS:000316930900070
dc.information.autorucAgronomía e Ing. Forestal;Rey C;S/I;74118
dc.issue.numero4
dc.language.isoen
dc.nota.accesoSin adjunto
dc.publisherPUBLIC LIBRARY SCIENCE
dc.revistaPLOS ONE
dc.rightsregistro bibliográfico
dc.subjectFLORAL ORGAN ABSCISSION
dc.subjectSIGNAL-TRANSDUCTION
dc.subjectGROWTH-RESPONSE
dc.subjectGENE-EXPRESSION
dc.subjectCROSS-TALK
dc.subjectARABIDOPSIS
dc.subjectETHYLENE
dc.subjectPATHWAYS
dc.subjectSEPARATION
dc.subjectENCODES
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleNew Clothes for the Jasmonic Acid Receptor COI1: Delayed Abscission, Meristem Arrest and Apical Dominance
dc.typeartículo
dc.volumen8
sipa.codpersvinculados74118
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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