Article
Light induction of Arabidopsis SIG1 and SIG5 transcripts in mature leaves: differential roles of cryptochrome 1 and cryptochrome 2 and dual function of SIG5 in the recognition of plastid promoters.
The Plant journal : for cell and molecular biology - 1 Sept 2008
Onda Yayoi, Yagi Yusuke, Saito Yukiko, Takenaka Nobuhiro, Toyoshima Yoshinori
Abstract excerpt
SUMMARY: In higher plants, multiple nuclear-encoded sigma factors activate select subsets of plastid gene promoters in a partially redundant manner. We analysed the light induction profiles of transcripts from six Arabidopsis sigma factor (AtSIG) genes in mature leaves, focusing on the effects of wavelength and intensity. Red-light illumination (660 nm) of dark-adapted plants strongly induced AtSIG1 transcripts,...
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