Please use this identifier to cite or link to this item: https://doi.org/10.1105/tpc.106.041533
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dc.titleGLABROUS INFLORESCENCE STEMS modulates the regulation by gibberellins of epidermal differentiation and shoot maturation in Arabidopsis
dc.contributor.authorGan, Y.
dc.contributor.authorKumimoto, R.
dc.contributor.authorLiu, C.
dc.contributor.authorRatcliffe, O.
dc.contributor.authorYu, H.
dc.contributor.authorBroun, P.
dc.date.accessioned2014-10-27T08:29:31Z
dc.date.available2014-10-27T08:29:31Z
dc.date.issued2006-06
dc.identifier.citationGan, Y., Kumimoto, R., Liu, C., Ratcliffe, O., Yu, H., Broun, P. (2006-06). GLABROUS INFLORESCENCE STEMS modulates the regulation by gibberellins of epidermal differentiation and shoot maturation in Arabidopsis. Plant Cell 18 (6) : 1383-1395. ScholarBank@NUS Repository. https://doi.org/10.1105/tpc.106.041533
dc.identifier.issn10404651
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/100770
dc.description.abstractAs a plant shoot matures, it transitions through a series of growth phases in which successive aerial organs undergo distinct developmental changes. This process of phase change is known to be influenced by gibberellins (GAs). We report the identification of a putative transcription factor, GLABROUS INFLORESCENCE STEMS (GIS), which regulates aspects of shoot maturation in Arabidopsis thaliana. GIS loss-of-function mutations affect the epidermal differentiation of inflorescence organs, causing a premature decrease in trichome production on successive leaves, stem internodes, and branches. Overexpression has the opposite effect on trichome initiation and causes other heterochronic phenotypes, affecting flowering and juvenile-adult leaf transition and inducing the formation of rosette leaves on inflorescence stems. Genetic and gene expression analyses suggest that GIS acts in a GA-responsive pathway upstream of the trichome initiation regulator GLABROUS1 (GL1) and downstream of the GA signaling repressor SPINDLY (SPY). GIS mediates the induction of GL1 expression by GA in inflorescence organs and is antagonized in its action by the DELLA repressor GAI. The implication of GIS in the broader regulation of phase change is further suggested by the delay in flowering caused by GIS loss of function in the spy background. The discovery of GIS reveals a novel mechanism in the control of shoot maturation, through which GAs regulate cellular differentiation in plants. © 2006 American Society of Plant Biologists.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1105/tpc.106.041533
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.doi10.1105/tpc.106.041533
dc.description.sourcetitlePlant Cell
dc.description.volume18
dc.description.issue6
dc.description.page1383-1395
dc.description.codenPLCEE
dc.identifier.isiut000238088300007
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