Abstract
High-fluence white and blue light, but not red light, enhanced transcription of the barley chloroplast psbA promoter when heterologously expressed as a lacZ transcriptional fusion in the cyanobacterium, Synechococcus sp. strain PCC7942. Analysis of Arabidopsis thaliana phytochrome mutants, phyAphyB and hy2, indicated that a distinct blue phototransduction pathway stimulates psbA expression. The evolutionary implications of these findings are discussed.
Original language | English (US) |
---|---|
Pages (from-to) | 448-452 |
Number of pages | 5 |
Journal | Plant and Cell Physiology |
Volume | 40 |
Issue number | 4 |
DOIs | |
State | Published - 1999 |
Externally published | Yes |
Keywords
- Arabidopsis thaliana
- Blue light
- Chloroplast
- Promoter
- Synechococcus
- Transcription
ASJC Scopus subject areas
- Plant Science
- Physiology
- Cell Biology