The Arabidopsis Transcription Factor MYB12 Is a Flavonol-Specific Regulator of Phenylpropanoid Biosynthesis
Max Planck Institute for Plant Breeding Research · Max Planck Society
Abstract
Comprehensive functional data on plant R2R3-MYB transcription factors is still scarce compared to the manifold of their occurrence. Here, we identified the Arabidopsis (Arabidopsis thaliana) R2R3-MYB transcription factor MYB12 as a flavonol-specific activator of flavonoid biosynthesis. Transient expression in Arabidopsis protoplasts revealed a high degree of functional similarity between MYB12 and the structurally closely related factor P from maize (Zea mays). Both displayed similar target gene specificity, and both activated target gene promoters only in the presence of a functional MYB recognition element. The genes encoding the flavonoid biosynthesis enzymes chalcone synthase, chalcone flavanone isomerase,…
Citation impact
- FWCI
- 6.95
- Percentile
- 100%
- References
- 67
Authors
4- MFMehrtens FrankCorresponding
Max Planck Institute for Plant Breeding Research
- HKHarald Kranz
Max Planck Institute for Plant Breeding Research
- PBPaweł Bednarek
Max Planck Society, Max Planck Institute for Plant Breeding Research
- BWBernd Weißhaar
Max Planck Society, Max Planck Institute for Plant Breeding Research
Topics & keywords
- Chalcone synthase
- Chalcone isomerase
- MYB
- Arabidopsis
- Biology
- Flavanone
- Transcription factor
- Biochemistry