| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-08-06 |
| タイトル |
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タイトル |
Root PRR7 Improves the Accuracy of the Shoot Circadian Clock through Nutrient Transport |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
| 著者 |
Uemoto, Kyohei
Mori, Fumito
Yamauchi, Shota
久保田, 茜
高橋, 望
Egashira, Haruki
Kunimoto, Yumi
Araki, Takashi
Takemiya, Atsushi
Ito, Hiroshi
遠藤, 求
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The circadian clock allows plants to anticipate and adapt to periodic environmental changes. Organ- and tissue-specific properties of the circadian clock and shoot-to-root circadian signaling have been reported. While this long-distance signaling is thought to coordinate physiological functions across tissues, little is known about the feedback regulation of the root clock on the shoot clock in the hierarchical circadian network. Here, we show that the plant circadian clock conveys circadian information between shoots and roots through sucrose and K+. We also demonstrate that K+ transport from roots suppresses the variance of period length in shoots and then improves the accuracy of the shoot circadian clock. Sucrose measurements and qPCR showed that root sucrose accumulation was regulated by the circadian clock. Furthermore, root circadian clock genes, including PSEUDO-RESPONSE REGULATOR7 (PRR7), were regulated by sucrose, suggesting the involvement of sucrose from the shoot in the regulation of root clock gene expression. Therefore, we performed time-series measurements of xylem sap and micrografting experiments using prr7 mutants and showed that root PRR7 regulates K+ transport and suppresses variance of period length in the shoot. Our modeling analysis supports the idea that root-to-shoot signaling contributes to the precision of the shoot circadian clock. We performed micrografting experiments that illustrated how root PRR7 plays key roles in maintaining the accuracy of shoot circadian rhythms. We thus present a novel directional signaling pathway for circadian information from roots to shoots and propose that plants modulate physiological events in a timely manner through various timekeeping mechanisms. |
| 書誌情報 |
en : Plant & Cell Physiology
巻 64,
号 3,
p. 352-362,
発行日 2023-01-07
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| 出版者 |
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出版者 |
Oxford University Press |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1471-9053 |
| 出版者版DOI |
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関連タイプ |
isReplacedBy |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1093/pcp/pcad003 |
| 出版者版URI |
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関連タイプ |
isReplacedBy |
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識別子タイプ |
URI |
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関連識別子 |
https://academic.oup.com/pcp/article/64/3/352/6985822 |
| 権利 |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
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権利情報 |
$00A9 The Author(s) 2023. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| 著者版フラグ |
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出版タイプ |
NA |
