A model for combinatorial regulation of the petunia R2R3-MYB transcription factor ODORANT1

Research output: Contribution to journalArticle


The emission of floral volatiles requires coordinated expression of biosynthetic genes. In the regulatory network of the volatile benzenoid/phenylpropanoid pathway in Petunia hybrida two master regulators of the pathway have been identified. The R2R3-MYB transcription factor EMISSION OF BENZENOIDS II (EOBII) utilizes a specific MYB binding site to activate the expression of the R2R3-MYB ODORANT1 (ODO1). However, because EOBII is expressed early in flower development, when ODO1 is not, there must be other factors that play a role in regulating expression of ODO1. Through functional analyses of ODO1 promoter fragments from fragrant and non-fragrant flowers, we provide evidence for additional players and present a model for combinatorial regulation of ODO1 expression in Petunia.


External organisations
  • University of Amsterdam
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Biochemistry and Molecular Biology


  • Gene Expression Regulation, Plant, Models, Biological, Petunia, Plant Proteins, Promoter Regions, Genetic, Transcription Factors
Original languageEnglish
Pages (from-to)518-20
Number of pages3
JournalPlant Signaling and Behavior
Issue number4
Publication statusPublished - 2012 Apr
Publication categoryResearch
Externally publishedYes