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A PSTAIRE-type cyclin-dependent kinase controls light responses in land plants

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Title: A PSTAIRE-type cyclin-dependent kinase controls light responses in land plants
Authors: Bao, Liang Browse this author
Inoue, Natsumi Browse this author
Ishikawa, Masaki Browse this author
Gotoh, Eiji Browse this author
Teh, Ooi-Kock Browse this author
Higa, Takeshi Browse this author
Morimoto, Tomoro Browse this author
Ginanjar, Eggie Febrianto Browse this author
Harashima, Hirofumi Browse this author
Noda, Natsumi Browse this author
Watahiki, Masaaki Browse this author
Hiwatashi, Yuji Browse this author
Sekine, Masami Browse this author
Hasebe, Mitsuyasu Browse this author
Wada, Masamitsu Browse this author
Fujita, Tomomichi Browse this author →KAKEN DB
Issue Date: Jan-2022
Publisher: The American Association for the Advancement of Science(AAAS)
Journal Title: Science advances
Volume: 8
Issue: 4
Start Page: eabk2116
Publisher DOI: 10.1126/sciadv.abk2116
Abstract: Light is a critical signal perceived by plants to adapt their growth rate and direction. Although many signaling components have been studied, how plants respond to constantly fluctuating light remains underexplored. Here, we showed that in the moss Physcomitrium (Physcomitrella) patens, the PSTAIRE-type cyclin-dependent kinase PpCDKA is dispensable for growth. Instead, PpCDKA and its homolog in Arabidopsis thaliana control light-induced tropisms and chloroplast movements by probably influencing the cytoskeleton organization independently of the cell cycle. In addition, lower PpCDKA kinase activity was required to elicit light responses relative to cell cycle regulation. Thus, our study suggests that plant CDKAs may have been co-opted to control multiple light responses, and owing to the bistable switch properties of PSTAIRE-type CDKs, the noncanonical functions are widely conserved for eukaryotic environmental adaptation.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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