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タイトル: | CSL encodes a leucine-rich-repeat protein implicated in red/violet light signaling to the circadian clock in Chlamydomonas |
著者: | Kinoshita, Ayumi Niwa, Yoshimi Onai, Kiyoshi Yamano, Takashi https://orcid.org/0000-0001-6578-8095 (unconfirmed) Fukuzawa, Hideya https://orcid.org/0000-0003-0963-5662 (unconfirmed) Ishiura, Masahiro Matsuo, Takuya |
著者名の別形: | 木下, 亜有美 丹羽, 由実 小内, 清 山野, 隆志 福澤, 秀哉 石浦, 正寛 松尾, 拓哉 |
発行日: | 23-Mar-2017 |
出版者: | Public Library of Science |
誌名: | PLOS Genetics |
巻: | 13 |
号: | 3 |
論文番号: | e1006645 |
抄録: | The green alga Chlamydomonas reinhardtii shows various light responses in behavior and physiology. One such photoresponse is the circadian clock, which can be reset by external light signals to entrain its oscillation to daily environmental cycles. In a previous report, we suggested that a light-induced degradation of the clock protein ROC15 is a trigger to reset the circadian clock in Chlamydomonas. However, light signaling pathways of this process remained unclear. Here, we screened for mutants that show abnormal ROC15 diurnal rhythms, including the light-induced protein degradation at dawn, using a luciferase fusion reporter. In one mutant, ROC15 degradation and phase resetting of the circadian clock by light were impaired. Interestingly, the impairments were observed in response to red and violet light, but not to blue light. We revealed that an uncharacterized gene encoding a protein similar to RAS-signaling-related leucine-rich repeat (LRR) proteins is responsible for the mutant phenotypes. Our results indicate that a previously uncharacterized red/violet light signaling pathway is involved in the phase resetting of circadian clock in Chlamydomonas. |
記述: | 緑藻の体内時計 : 赤や紫の光情報を体内時計に伝える因子を発見. 京都大学プレスリリース. 2017-03-24. |
著作権等: | © 2017 Kinoshita et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
URI: | http://hdl.handle.net/2433/219100 |
DOI(出版社版): | 10.1371/journal.pgen.1006645 |
PubMed ID: | 28333924 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2017-03-24 |
出現コレクション: | 学術雑誌掲載論文等 |
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