LegaySivadonBlervacqEtAl2010

Référence

Legay, S., Sivadon, P., Blervacq, A.-S., Pavy, N., Baghdady, A., Tremblay, L., Levasseur, C., Ladouce, N., Lapierre, C., Seguin, A., Hawkins, S., MacKay, J. and Grima-Pettenati, J. (2010) EgMYB1, an R2R3 MYB transcription factor from eucalyptus negatively regulates secondary cell wall formation in Arabidopsis and poplar. New Phytologist, 188(3):774-86. (Scopus )

Résumé

Summary: The eucalyptus R2R3 transcription factor, EgMYB1 contains an active repressor motif in the regulatory domain of the predicted protein. It is preferentially expressed in differentiating xylem and is capable of repressing the transcription of two key lignin genes in vivo. In order to investigate in planta the role of this putative transcriptional repressor of the lignin biosynthetic pathway, we overexpressed the EgMYB1 gene in Arabidopsis and poplar. Expression of EgMYB1 produced similar phenotypes in both species, with stronger effects in transgenic Arabidopsis plants than in poplar. Vascular development was altered in overexpressors showing fewer lignified fibres (in phloem and interfascicular zones in poplar and Arabidopsis, respectively) and reduced secondary wall thickening. Klason lignin content was moderately but significantly reduced in both species. Decreased transcript accumulation was observed for genes involved in the biosynthesis of lignins, cellulose and xylan, the three main polymers of secondary cell walls. Transcriptomic profiles of transgenic poplars were reminiscent of those reported when lignin biosynthetic genes are disrupted. Together, these results strongly suggest that EgMYB1 is a repressor of secondary wall formation and provide new opportunities to dissect the transcriptional regulation of secondary wall biosynthesis. © The Authors (2010). Journal compilation © New Phytologist Trust (2010).

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { LegaySivadonBlervacqEtAl2010,
    AUTHOR = { Legay, S. and Sivadon, P. and Blervacq, A.-S. and Pavy, N. and Baghdady, A. and Tremblay, L. and Levasseur, C. and Ladouce, N. and Lapierre, C. and Seguin, A. and Hawkins, S. and MacKay, J. and Grima-Pettenati, J. },
    TITLE = { EgMYB1, an R2R3 MYB transcription factor from eucalyptus negatively regulates secondary cell wall formation in Arabidopsis and poplar },
    JOURNAL = { New Phytologist },
    YEAR = { 2010 },
    VOLUME = { 188 },
    PAGES = { 774--86 },
    NUMBER = { 3 },
    ABSTRACT = { Summary: The eucalyptus R2R3 transcription factor, EgMYB1 contains an active repressor motif in the regulatory domain of the predicted protein. It is preferentially expressed in differentiating xylem and is capable of repressing the transcription of two key lignin genes in vivo. In order to investigate in planta the role of this putative transcriptional repressor of the lignin biosynthetic pathway, we overexpressed the EgMYB1 gene in Arabidopsis and poplar. Expression of EgMYB1 produced similar phenotypes in both species, with stronger effects in transgenic Arabidopsis plants than in poplar. Vascular development was altered in overexpressors showing fewer lignified fibres (in phloem and interfascicular zones in poplar and Arabidopsis, respectively) and reduced secondary wall thickening. Klason lignin content was moderately but significantly reduced in both species. Decreased transcript accumulation was observed for genes involved in the biosynthesis of lignins, cellulose and xylan, the three main polymers of secondary cell walls. Transcriptomic profiles of transgenic poplars were reminiscent of those reported when lignin biosynthetic genes are disrupted. Together, these results strongly suggest that EgMYB1 is a repressor of secondary wall formation and provide new opportunities to dissect the transcriptional regulation of secondary wall biosynthesis. © The Authors (2010). Journal compilation © New Phytologist Trust (2010). },
    COMMENT = { Export Date: 13 January 2011 Source: Scopus CODEN: NEPHA doi: 10.1111/j.1469-8137.2010.03432.x },
    ISSN = { 0028646X (ISSN) },
    KEYWORDS = { Eucalyptus, Lignification, R2R3 MYB, Secondary cell wall, Transcription factor, Xylem, deciduous tree, evergreen tree, gene expression, herb, lignin, phenotype, protein, xylem },
    OWNER = { Luc },
    TIMESTAMP = { 2011.01.13 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77958558578&partnerID=40&md5=70b38bedb0b55d8b1ae129c18902b172 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

École d'été : Modélisation de la biodiversité 
19 au 24 août 2018, Orford

********************************************************** ***************** Pub - Carapace ****************** **********************************************************

********************************************************** ***************** Pub - Budworm ****************** **********************************************************

********************************************************** ***************** Pub - Colibri **************************** **********************************************************

********************************************************** ********** Pub 6 - Au coeur de l'arbre *********** **********************************************************

...Une exposition
virtuelle sur l'arbre!

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...