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Overexpression of AtGRDP2, a novel glycine-rich domain protein, accelerates plant growth and improves stress tolerance | |
MARIA AZUCENA ORTEGA AMARO AIDA ARACELI RODRIGUEZ HERNANDEZ MARGARITA RODRIGUEZ Y DOMINGUEZ KESSLER ELOISA HERNANDEZ LUCERO SERGIO ROSALES MENDOZA ALEJANDRO IBAÑEZ SALAZAR PABLO DELGADO SANCHEZ JUAN FRANCISCO JIMENEZ BREMONT | |
Acceso Abierto | |
Atribución-NoComercial-SinDerivadas | |
https://doi.org/10.3389/fpls.2014.00782 | |
Glycine-rich domain protein Arabidopsis thaliana Lactuca sativa Development Indole-3-acetic acid Salt stress | |
"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." | |
Frontiers Research Foundation | |
2015-01 | |
Artículo | |
Inglés | |
Público en general | |
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 | |
CIENCIAS DE LA VIDA | |
Versión publicada | |
publishedVersion - Versión publicada | |
Aparece en las colecciones: | Publicaciones Científicas Biología Molecular |
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