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Título: | The maize ZmMYB42 represses the phenylpropanoid pathway and affects the cell wall structure, composition and degradability in Arabidopsis thaliana |
Autor: | Sonbol, Fathi-Mohamed; Fornalé, Silvia CSIC ORCID; Capellades, Montserrat CSIC ORCID; Encina, Antonio; Touriño, Sonia CSIC; Torres, Josep Lluís CSIC ORCID; Rovira, Pere; Ruel, Katia; Puigdomènech, Pere CSIC; Rigau, Joan CSIC; Caparrós Ruiz, David CSIC ORCID | Fecha de publicación: | 2009 | Editor: | Springer Nature | Citación: | Plant Molecular Biology 70: 283 (2009) | Resumen: | The involvement of the maize ZmMYB42 R2R3-MYB factor in the phenylpropanoid pathway and cell wall structure and composition was investigated by overexpression in Arabidopsis thaliana. ZmMYB42 down-regulates several genes of the lignin pathway and this effect reduces the lignin content in all lignified tissues. In addition, ZmMYB42 plants generate a lignin polymer with a decreased S to G ratio through the enrichment in H and G subunits and depletion in S subunits. This transcription factor also regulates other genes involved in the synthesis of sinapate esters and flavonoids. Furthermore, ZmMYB42 affects the cell wall structure and degradability, and its polysaccharide composition. Together, these results suggest that ZmMYB42 may be part of the regulatory network controlling the phenylpropanoid biosynthetic pathway. | Versión del editor: | https://doi.org/10.1007/s11103-009-9473-2 | URI: | http://hdl.handle.net/10261/250446 | DOI: | 10.1007/s11103-009-9473-2 | ISSN: | 0167-4412 |
Aparece en las colecciones: | (CRAG) Artículos (IQAC) Artículos |
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