2017年3月
Synchrony of plant cellular circadian clocks with heterogeneous properties under light/dark cycles
SCIENTIFIC REPORTS
- ,
- ,
- ,
- 巻
- 7
- 号
- 1
- 開始ページ
- 317
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41598-017-00454-8
- 出版者・発行元
- NATURE PUBLISHING GROUP
Individual cells in a plant can work independently as circadian clocks, and their properties are the basis of various circadian phenomena. The behaviour of individual cellular clocks in Lemna gibba was orderly under 24-h light/dark cycles despite their heterogeneous free-running periods (FRPs). Here, we reveal the entrainment habits of heterogeneous cellular clocks using non-24-h light/dark cycles (T-cycles). The cellular rhythms of AtCCA1:: LUC under T = 16 h cycles showed heterogeneous entrainment that was associated with their heterogeneous FRPs. Under T = 12 h cycles, most cells showed rhythms having similar to 24-h periods. This suggested that the lower limit of entrainment to the light/dark cycles of heterogeneous cellular circadian clocks is set to a period longer than 12 h, which enables them to be synchronous under similar to 24-h daily cycles without being perturbed by short light/dark cycles. The entrainment habits of individual cellular clocks are likely to be the basis of the circadian behaviour of plant under the natural day-night cycle with noisy environmental fluctuations. We further suggest that modifications of EARLY FLOWERING3 (ELF3) in individual cells deviate the entrainability to shorter T-cycles possibly by altering both the FRPs and light responsiveness.
- リンク情報
- ID情報
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- DOI : 10.1038/s41598-017-00454-8
- ISSN : 2045-2322
- PubMed ID : 28331201
- Web of Science ID : WOS:000396983000028