Arabidopsis cryptochrome 2 forms photobodies with TCP22 under blue light and regulates the circadian clock.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35551190.
- Also identified by DOI 10.1038/s41467-022-30231-9 and PMC identifier 9098493.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Cryptochromes are blue light receptors that regulate plant growth and development. They also act as the core components of the central clock oscillator in animals. Although plant cryptochromes have been reported to regulate the circadian clock in blue light, how they do so is unclear. Here we show that Arabidopsis cryptochrome 2 (CRY2) forms photobodies with the TCP22 transcription factor in response to blue light in plant cells. We provide evidence that PPK kinases influence the characteristics of these photobodies and that together these components, along with LWD transcriptional regulators, can positively regulate the expression of CCA1 encoding a central component of the circadian oscillator.
Medical subject headings
- Arabidopsis
- Arabidopsis Proteins
- Circadian Clocks