Article
A novel transcriptional cascade regulating expression of heat stress proteins during seed development of Arabidopsis.
The Plant cell - 1 Jan 2007
Kotak Sachin, Vierling Elizabeth, Bäumlein Helmut, von Koskull-Döring Pascal
Abstract excerpt
Within the Arabidopsis thaliana family of 21 heat stress transcription factors (Hsfs), HsfA9 is exclusively expressed in late stages of seed development. Here, we present evidence that developmental expression of HsfA9 is regulated by the seed-specific transcription factor ABSCISIC ACID-INSENSITIVE3 (ABI3). Intriguingly, ABI3 knockout lines lack detectable levels of HsfA9 transcript and protein, and further...
Topics
- Abscisic Acid
- Arabidopsis
- Arabidopsis Proteins
- Gene Expression Regulation, Plant
- Genes, Reporter
- Glucuronidase
- Models, Biological
- Mutation
- Plant Growth Regulators
- Promoter Regions, Genetic
- RNA, Messenger
- Seeds
- Signal Transduction
- Transcription Factors