Overexpression of AtGRDP2, a novel glycine-rich domain protein, accelerates plant growth and improves stress tolerance

dc.creatorMARIA AZUCENA ORTEGA AMARO
dc.creatorAIDA ARACELI RODRIGUEZ HERNANDEZ
dc.creatorMARGARITA RODRIGUEZ Y DOMINGUEZ KESSLER
dc.creatorELOISA HERNANDEZ LUCERO
dc.creatorSERGIO ROSALES MENDOZA
dc.creatorALEJANDRO IBAÑEZ SALAZAR
dc.creatorPABLO DELGADO SANCHEZ
dc.creatorJUAN FRANCISCO JIMENEZ BREMONT
dc.date2015-01
dc.date.accessioned2018-11-19T13:52:39Z
dc.date.available2018-11-19T13:52:39Z
dc.identifierhttp://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1307
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/2252365
dc.description"Proteins with glycine-rich signatures have been reported in a wide variety of organisms including plants, mammalians, fungi, and bacteria. Plant glycine-rich protein genes exhibit developmental and tissue-specific expression patterns. Herein, we present the characterization of the AtGRDP2 gene using Arabidopsis null and knockdown mutants and, Arabidopsis and lettuce over-expression lines. AtGRDP2 encodes a short glycine-rich domain protein, containing a DUF1399 domain and a putative RNA recognition motif (RRM). AtGRDP2 transcript is mainly expressed in Arabidopsis floral organs, and its deregulation in Arabidopsis Atgrdp2 mutants and 35S::AtGRDP2 over-expression lines produces alterations in development. The 35S::AtGRDP2 over-expression lines grow faster than the WT, while the Atgrdp2 mutants have a delay in growth and development. The over-expression lines accumulate higher levels of indole-3-acetic acid and, have alterations in the expression pattern of ARF6, ARF8, and miR167 regulators of floral development and auxin signaling. Under salt stress conditions, 35S::AtGRDP2 over-expression lines displayed higher tolerance and increased expression of stress marker genes. Likewise, transgenic lettuce plants over-expressing the AtGRDP2 gene manifest increased growth rate and early flowering time. Our data reveal an important role for AtGRDP2 in Arabidopsis development and stress response, and suggest a connection between AtGRDP2 and auxin signaling."
dc.formatapplication/pdf
dc.languageeng
dc.publisherFrontiers Research Foundation
dc.relationinfo:eu-repo/semantics/altIdentifier/DOI/https://doi.org/10.3389/fpls.2014.00782
dc.relationcitation:Ortega-Amaro MA, Rodríguez-Hernández AA, Rodríguez-Kessler M, Hernández-Lucero E, Rosales-Mendoza S, Ibáñez-Salazar A, Delgado-Sánchez P and Jiménez-Bremont JF (2015) Overexpression of AtGRDP2, a novel glycine-rich domain protein, accelerates plant growth and improves stress tolerance. Front.Plant Sci. 5:782. doi: 10.3389/fpls.2014.00782
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Autor/Glycine-rich domain protein
dc.subjectinfo:eu-repo/classification/Autor/Arabidopsis thaliana
dc.subjectinfo:eu-repo/classification/Autor/Lactuca sativa
dc.subjectinfo:eu-repo/classification/Autor/Development
dc.subjectinfo:eu-repo/classification/Autor/Indole-3-acetic acid
dc.subjectinfo:eu-repo/classification/Autor/Salt stress
dc.subjectinfo:eu-repo/classification/cti/2
dc.subjectinfo:eu-repo/classification/cti/24
dc.titleOverexpression of AtGRDP2, a novel glycine-rich domain protein, accelerates plant growth and improves stress tolerance
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.audiencegeneralPublic


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