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PubMed · 15063727

EXORDIUM regulates brassinosteroid-responsive genes.

Danahe Coll-Garcia·Jeannine Mazuch·Thomas Altmann·Carsten Müssig
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Abstract

In a screen for potential mediators of brassinosteroid (BR) effects, the EXORDIUM (EXO) protein was identified as a regulator of BR-responsive genes. The EXO gene was characterized as a BR-up-regulated gene. EXO overexpression under the control of the 35SCaMV promoter resulted in increased transcript levels of the BR-up-regulated KCS1, Exp5, delta-TIP, and AGP4 genes, which likely are involved in the mediation of BR-promoted growth. 35S::EXO lines grown in soil or in synthetic medium showed increased vegetative growth in comparison to wild-type plants, resembling the growth phenotype of BR-treated plants. Thus, the EXO protein most likely promotes growth via the modulation of gene expression patterns.

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ArabidopsisArabidopsis ProteinsDNA, ComplementaryGene Expression Regulation, PlantGenes, PlantOligonucleotide Array Sequence AnalysisPhytosterolsPlants, Genetically ModifiedPolymerase Chain ReactionRNA, MessengerTransgenesComparative StudyJournal ArticleResearch Support, Non-U.S. Gov't

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Danahe Coll-Garcia, Jeannine Mazuch, Thomas Altmann, Carsten Müssig. 2004-04-09. EXORDIUM regulates brassinosteroid-responsive genes.. https://doi.org/10.1016/s0014-5793(04)00255-8

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