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240421s2024 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erae166
|2 doi
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|a pubmed25n1237.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 Chen, Lily
|e verfasserin
|4 aut
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| 245 |
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|a Sugar sensing in C4 source leaves
|b a gap that needs to be filled
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|c 2024
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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
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|2 rdacarrier
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|a Date Completed 10.07.2024
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|a Date Revised 12.07.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Plant growth depends on sugar production and export by photosynthesizing source leaves and sugar allocation and import by sink tissues (grains, roots, stems, and young leaves). Photosynthesis and sink demand are tightly coordinated through metabolic (substrate, allosteric) feedback and signalling (sugar, hormones) mechanisms. Sugar signalling integrates sugar production with plant development and environmental cues. In C3 plants (e.g. wheat and rice), it is well documented that sugar accumulation in source leaves, due to source-sink imbalance, negatively feeds back on photosynthesis and plant productivity. However, we have a limited understanding about the molecular mechanisms underlying those feedback regulations, especially in C4 plants (e.g. maize, sorghum, and sugarcane). Recent work with the C4 model plant Setaria viridis suggested that C4 leaves have different sugar sensing thresholds and behaviours relative to C3 counterparts. Addressing this research priority is critical because improving crop yield requires a better understanding of how plants coordinate source activity with sink demand. Here we review the literature, present a model of action for sugar sensing in C4 source leaves, and suggest ways forward
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|a Journal Article
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|a Review
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|a C4 photosynthesis
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|a Snf1-related kinase 1 (SnRK1)
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|a hexokinase (HXK)
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| 650 |
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|a source and sink tissues
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|a sugar sensing
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|a target of rapamycin (TOR)
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| 650 |
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|a trehalose 6-phosphate (Tre6P)
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|a Sugars
|2 NLM
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|a Ghannoum, Oula
|e verfasserin
|4 aut
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|a Furbank, Robert T
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 75(2024), 13 vom: 10. Juli, Seite 3818-3834
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:75
|g year:2024
|g number:13
|g day:10
|g month:07
|g pages:3818-3834
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erae166
|3 Volltext
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