High-fluence blue light stimulates transcription from a higher plant chloroplast psbA promoter expressed in a cyanobacterium, Synechococcus (sp. strain PCC7942)

Nicholas F. Tsinoremas, Alana Kawakami, David A. Christopher

Research output: Contribution to journalArticle

7 Scopus citations

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 languageEnglish (US)
Pages (from-to)448-452
Number of pages5
JournalPlant and Cell Physiology
Volume40
Issue number4
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

Keywords

  • Arabidopsis thaliana
  • Blue light
  • Chloroplast
  • Promoter
  • Synechococcus
  • Transcription

ASJC Scopus subject areas

  • Plant Science
  • Physiology
  • Cell Biology

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