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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eru117
|2 doi
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|a pubmed24n0790.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Müller, Lukas M
|e verfasserin
|4 aut
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|a Connections between circadian clocks and carbon metabolism reveal species-specific effects on growth control
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 28.01.2015
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|a Date Revised 14.06.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a The plant circadian system exists in a framework of rhythmic metabolism. Much has been learned about the transcriptional machinery that generates the clock rhythm. Interestingly, these components are largely conserved between monocots and dicots, but key differences in physiological and developmental output processes have been found. How the clock coordinates carbon metabolism to drive plant growth performance is described with a focus on starch breakdown in Arabidopsis. It is proposed that clock effects on plant growth and fitness are more complex than just matching internal with external rhythms. Interesting recent findings support that the products of photosynthesis, probably sucrose, in turn feeds back to the clock to set its rhythm. In this way, the clock both controls and is controlled by carbon fluxes. This has an interesting connection to stress signalling and water-use efficiency, and it is now known that the clock and abscisic acid pathways are reciprocally coordinated. These processes converge to drive growth in a species-specific context such that predictions from the Arabidopsis model to other species can be restricted. This has been seen from phenotypic growth studies that revealed that dicot shoot growth is rhythmic whereas monocot shoot growth is continuous. Taken together, emerging evidence suggests reciprocal interactions between metabolism, the circadian clock, and stress signalling to control growth and fitness in Arabidopsis, but transferability to other species is not always possible due to species-specific effects
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Review
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|a Arabidopsis
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|a barley
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|a circadian clock
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|a diurnal
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|a growth control
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|a hormone signalling
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|a sucrose.
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a von Korff, Maria
|e verfasserin
|4 aut
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|a Davis, Seth J
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 65(2014), 11 vom: 04. Juni, Seite 2915-23
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|x 1460-2431
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|g volume:65
|g year:2014
|g number:11
|g day:04
|g month:06
|g pages:2915-23
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|u http://dx.doi.org/10.1093/jxb/eru117
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