Arabidopsis cryptochrome 2 forms photobodies with TCP22 under blue light and regulates the circadian clock

Weiliang Mo, Junchuan Zhang, Li Zhang, Zhenming Yang, Liang Yang, Nan Yao, Yong Xiao, Tianhong Li, Yaxing Li, Guangmei Zhang, Mingdi Bian, Xinglin Du and Zecheng Zuo ()
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Weiliang Mo: Jilin University
Junchuan Zhang: Jilin University
Li Zhang: Jilin University
Zhenming Yang: Jilin University
Liang Yang: Fujian Agriculture and Forestry University
Nan Yao: Fujian Agriculture and Forestry University
Yong Xiao: Jilin University
Tianhong Li: Jilin University
Yaxing Li: Fujian Agriculture and Forestry University
Guangmei Zhang: Fujian Agriculture and Forestry University
Mingdi Bian: Jilin University
Xinglin Du: Jilin University
Zecheng Zuo: Jilin University

Nature Communications, 2022, vol. 13, issue 1, 1-15

Abstract: 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.

Date: 2022
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DOI: 10.1038/s41467-022-30231-9

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