RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis
- Autores
- Muñoz, Alfonso; Mangano, Silvina; González-García, Mary Paz; Contreras, Ramón; Sauer, Michael; De Rybel, Bert; Weijers, Dolf; Sánchez Serrano, José Juan; Sanmartín, Maite; Rojo, Enrique
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The transcriptional regulator MINIYO (IYO) is essential and rate-limiting for initiating cell differentiation in Arabidopsis thaliana Moreover, IYO moves from the cytosol into the nucleus in cells at the meristem periphery, possibly triggering their differentiation. However, the genetic mechanisms controlling IYO nuclear accumulation were unknown, and the evidence that increased nuclear IYO levels trigger differentiation remained correlative. Searching for IYO interactors, we identified RPAP2 IYO Mate (RIMA), a homolog of yeast and human proteins linked to nuclear import of selective cargo. Knockdown of RIMA causes delayed onset of cell differentiation, phenocopying the effects of IYO knockdown at the transcriptomic and developmental levels. Moreover, differentiation is completely blocked when IYO and RIMA activities are simultaneously reduced and is synergistically accelerated when IYO and RIMA are concurrently overexpressed, confirming their functional interaction. Indeed, RIMA knockdown reduces the nuclear levels of IYO and prevents its prodifferentiation activity, supporting the conclusion that RIMA-dependent nuclear IYO accumulation triggers cell differentiation in Arabidopsis. Importantly, by analyzing the effect of the IYO/RIMA pathway on xylem pole pericycle cells, we provide compelling evidence reinforcing the view that the capacity for de novo organogenesis and regeneration from mature plant tissues can reside in stem cell reservoirs.
Fil: Muñoz, Alfonso. Consejo Superior de Investigaciones Cientificas; España
Fil: Mangano, Silvina. Consejo Superior de Investigaciones Cientificas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: González-García, Mary Paz. Consejo Superior de Investigaciones Cientificas; España
Fil: Contreras, Ramón. Consejo Superior de Investigaciones Cientificas; España
Fil: Sauer, Michael. Universitat Potsdam; Alemania. Consejo Superior de Investigaciones Cientificas; España
Fil: De Rybel, Bert. University of Ghent; Bélgica. Wageningen University; Países Bajos
Fil: Weijers, Dolf. Wageningen University; Países Bajos
Fil: Sánchez Serrano, José Juan. Consejo Superior de Investigaciones Cientificas; España
Fil: Sanmartín, Maite. Consejo Superior de Investigaciones Cientificas; España
Fil: Rojo, Enrique. Consejo Superior de Investigaciones Cientificas; España - Materia
-
Cell Differentiation
Arabidopsis Thaliana
Organogenesis
Stem Cell - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/22868
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RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in ArabidopsisMuñoz, AlfonsoMangano, SilvinaGonzález-García, Mary PazContreras, RamónSauer, MichaelDe Rybel, BertWeijers, DolfSánchez Serrano, José JuanSanmartín, MaiteRojo, EnriqueCell DifferentiationArabidopsis ThalianaOrganogenesisStem Cellhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The transcriptional regulator MINIYO (IYO) is essential and rate-limiting for initiating cell differentiation in Arabidopsis thaliana Moreover, IYO moves from the cytosol into the nucleus in cells at the meristem periphery, possibly triggering their differentiation. However, the genetic mechanisms controlling IYO nuclear accumulation were unknown, and the evidence that increased nuclear IYO levels trigger differentiation remained correlative. Searching for IYO interactors, we identified RPAP2 IYO Mate (RIMA), a homolog of yeast and human proteins linked to nuclear import of selective cargo. Knockdown of RIMA causes delayed onset of cell differentiation, phenocopying the effects of IYO knockdown at the transcriptomic and developmental levels. Moreover, differentiation is completely blocked when IYO and RIMA activities are simultaneously reduced and is synergistically accelerated when IYO and RIMA are concurrently overexpressed, confirming their functional interaction. Indeed, RIMA knockdown reduces the nuclear levels of IYO and prevents its prodifferentiation activity, supporting the conclusion that RIMA-dependent nuclear IYO accumulation triggers cell differentiation in Arabidopsis. Importantly, by analyzing the effect of the IYO/RIMA pathway on xylem pole pericycle cells, we provide compelling evidence reinforcing the view that the capacity for de novo organogenesis and regeneration from mature plant tissues can reside in stem cell reservoirs.Fil: Muñoz, Alfonso. Consejo Superior de Investigaciones Cientificas; EspañaFil: Mangano, Silvina. Consejo Superior de Investigaciones Cientificas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: González-García, Mary Paz. Consejo Superior de Investigaciones Cientificas; EspañaFil: Contreras, Ramón. Consejo Superior de Investigaciones Cientificas; EspañaFil: Sauer, Michael. Universitat Potsdam; Alemania. Consejo Superior de Investigaciones Cientificas; EspañaFil: De Rybel, Bert. University of Ghent; Bélgica. Wageningen University; Países BajosFil: Weijers, Dolf. Wageningen University; Países BajosFil: Sánchez Serrano, José Juan. Consejo Superior de Investigaciones Cientificas; EspañaFil: Sanmartín, Maite. Consejo Superior de Investigaciones Cientificas; EspañaFil: Rojo, Enrique. Consejo Superior de Investigaciones Cientificas; EspañaAmerican Society of Plant Biologist2017-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22868Muñoz, Alfonso; Mangano, Silvina; González-García, Mary Paz; Contreras, Ramón; Sauer, Michael; et al.; RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis; American Society of Plant Biologist; Plant Cell; 29; 3; 2-2017; 575-5881040-46511532-298XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.plantcell.org/content/29/3/575.longinfo:eu-repo/semantics/altIdentifier/doi/10.1105/tpc.16.00791info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:08:56Zoai:ri.conicet.gov.ar:11336/22868instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:08:56.887CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
title |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
spellingShingle |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis Muñoz, Alfonso Cell Differentiation Arabidopsis Thaliana Organogenesis Stem Cell |
title_short |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
title_full |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
title_fullStr |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
title_full_unstemmed |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
title_sort |
RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis |
dc.creator.none.fl_str_mv |
Muñoz, Alfonso Mangano, Silvina González-García, Mary Paz Contreras, Ramón Sauer, Michael De Rybel, Bert Weijers, Dolf Sánchez Serrano, José Juan Sanmartín, Maite Rojo, Enrique |
author |
Muñoz, Alfonso |
author_facet |
Muñoz, Alfonso Mangano, Silvina González-García, Mary Paz Contreras, Ramón Sauer, Michael De Rybel, Bert Weijers, Dolf Sánchez Serrano, José Juan Sanmartín, Maite Rojo, Enrique |
author_role |
author |
author2 |
Mangano, Silvina González-García, Mary Paz Contreras, Ramón Sauer, Michael De Rybel, Bert Weijers, Dolf Sánchez Serrano, José Juan Sanmartín, Maite Rojo, Enrique |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
Cell Differentiation Arabidopsis Thaliana Organogenesis Stem Cell |
topic |
Cell Differentiation Arabidopsis Thaliana Organogenesis Stem Cell |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The transcriptional regulator MINIYO (IYO) is essential and rate-limiting for initiating cell differentiation in Arabidopsis thaliana Moreover, IYO moves from the cytosol into the nucleus in cells at the meristem periphery, possibly triggering their differentiation. However, the genetic mechanisms controlling IYO nuclear accumulation were unknown, and the evidence that increased nuclear IYO levels trigger differentiation remained correlative. Searching for IYO interactors, we identified RPAP2 IYO Mate (RIMA), a homolog of yeast and human proteins linked to nuclear import of selective cargo. Knockdown of RIMA causes delayed onset of cell differentiation, phenocopying the effects of IYO knockdown at the transcriptomic and developmental levels. Moreover, differentiation is completely blocked when IYO and RIMA activities are simultaneously reduced and is synergistically accelerated when IYO and RIMA are concurrently overexpressed, confirming their functional interaction. Indeed, RIMA knockdown reduces the nuclear levels of IYO and prevents its prodifferentiation activity, supporting the conclusion that RIMA-dependent nuclear IYO accumulation triggers cell differentiation in Arabidopsis. Importantly, by analyzing the effect of the IYO/RIMA pathway on xylem pole pericycle cells, we provide compelling evidence reinforcing the view that the capacity for de novo organogenesis and regeneration from mature plant tissues can reside in stem cell reservoirs. Fil: Muñoz, Alfonso. Consejo Superior de Investigaciones Cientificas; España Fil: Mangano, Silvina. Consejo Superior de Investigaciones Cientificas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina Fil: González-García, Mary Paz. Consejo Superior de Investigaciones Cientificas; España Fil: Contreras, Ramón. Consejo Superior de Investigaciones Cientificas; España Fil: Sauer, Michael. Universitat Potsdam; Alemania. Consejo Superior de Investigaciones Cientificas; España Fil: De Rybel, Bert. University of Ghent; Bélgica. Wageningen University; Países Bajos Fil: Weijers, Dolf. Wageningen University; Países Bajos Fil: Sánchez Serrano, José Juan. Consejo Superior de Investigaciones Cientificas; España Fil: Sanmartín, Maite. Consejo Superior de Investigaciones Cientificas; España Fil: Rojo, Enrique. Consejo Superior de Investigaciones Cientificas; España |
description |
The transcriptional regulator MINIYO (IYO) is essential and rate-limiting for initiating cell differentiation in Arabidopsis thaliana Moreover, IYO moves from the cytosol into the nucleus in cells at the meristem periphery, possibly triggering their differentiation. However, the genetic mechanisms controlling IYO nuclear accumulation were unknown, and the evidence that increased nuclear IYO levels trigger differentiation remained correlative. Searching for IYO interactors, we identified RPAP2 IYO Mate (RIMA), a homolog of yeast and human proteins linked to nuclear import of selective cargo. Knockdown of RIMA causes delayed onset of cell differentiation, phenocopying the effects of IYO knockdown at the transcriptomic and developmental levels. Moreover, differentiation is completely blocked when IYO and RIMA activities are simultaneously reduced and is synergistically accelerated when IYO and RIMA are concurrently overexpressed, confirming their functional interaction. Indeed, RIMA knockdown reduces the nuclear levels of IYO and prevents its prodifferentiation activity, supporting the conclusion that RIMA-dependent nuclear IYO accumulation triggers cell differentiation in Arabidopsis. Importantly, by analyzing the effect of the IYO/RIMA pathway on xylem pole pericycle cells, we provide compelling evidence reinforcing the view that the capacity for de novo organogenesis and regeneration from mature plant tissues can reside in stem cell reservoirs. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/22868 Muñoz, Alfonso; Mangano, Silvina; González-García, Mary Paz; Contreras, Ramón; Sauer, Michael; et al.; RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis; American Society of Plant Biologist; Plant Cell; 29; 3; 2-2017; 575-588 1040-4651 1532-298X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/22868 |
identifier_str_mv |
Muñoz, Alfonso; Mangano, Silvina; González-García, Mary Paz; Contreras, Ramón; Sauer, Michael; et al.; RIMA-Dependent Nuclear Accumulation of IYO Triggers Auxin-Irreversible Cell Differentiation in Arabidopsis; American Society of Plant Biologist; Plant Cell; 29; 3; 2-2017; 575-588 1040-4651 1532-298X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.plantcell.org/content/29/3/575.long info:eu-repo/semantics/altIdentifier/doi/10.1105/tpc.16.00791 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Society of Plant Biologist |
publisher.none.fl_str_mv |
American Society of Plant Biologist |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613962279157760 |
score |
13.070432 |