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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw097
|2 doi
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|a pubmed24n0862.xml
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|a (DE-627)NLM25876158X
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|a (NLM)27012281
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kim, Hyunmin
|e verfasserin
|4 aut
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|a Age-associated circadian period changes in Arabidopsis leaves
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 16.11.2017
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|a Date Revised 08.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a As most organisms age, their appearance, physiology, and behaviour alters as part of a life history strategy that maximizes their fitness over their lifetime. The passage of time is measured by organisms and is used to modulate these age-related changes. Organisms have an endogenous time measurement system called the circadian clock. This endogenous clock regulates many physiological responses throughout the life history of organisms to enhance their fitness. However, little is known about the relation between ageing and the circadian clock in plants. Here, we investigate the association of leaf ageing with circadian rhythm changes to better understand the regulation of life-history strategy in Arabidopsis. The circadian periods of clock output genes were approximately 1h shorter in older leaves than younger leaves. The periods of the core clock genes were also consistently shorter in older leaves, indicating an effect of ageing on regulation of the circadian period. Shortening of the circadian period with leaf age occurred faster in plants grown under a long photoperiod compared with a short photoperiod. We screened for a regulatory gene that links ageing and the circadian clock among multiple clock gene mutants. Only mutants for the clock oscillator TOC1 did not show a shortened circadian period during leaf ageing, suggesting that TOC1 may link age to changes in the circadian clock period. Our findings suggest that age-related information is incorporated into the regulation of the circadian period and that TOC1 is necessary for this integrative process
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis
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|a TOC1.
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|a circadian clock
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|a day length
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| 650 |
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|a leaf age
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| 650 |
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4 |
|a plant life history
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a RNA, Messenger
|2 NLM
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| 650 |
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|a TOC1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 700 |
1 |
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|a Kim, Yumi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yeom, Miji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lim, Junhyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nam, Hong Gil
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 9 vom: 01. Apr., Seite 2665-73
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:67
|g year:2016
|g number:9
|g day:01
|g month:04
|g pages:2665-73
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|u http://dx.doi.org/10.1093/jxb/erw097
|3 Volltext
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|d 67
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|h 2665-73
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