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240213s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2024.154188
|2 doi
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|a eng
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|a Miret, Javier A
|e verfasserin
|4 aut
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|a Sucrose homeostasis
|b Mechanisms and opportunity in crop yield improvement
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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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|a Date Completed 11.03.2024
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|a Date Revised 11.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 The Authors. Published by Elsevier GmbH.. All rights reserved.
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|a Sugar homeostasis is a critical feature of biological systems. In humans, raised and dysregulated blood sugar is a serious health issue. In plants, directed changes in sucrose homeostasis and allocation represent opportunities in crop improvement. Plant tissue sucrose varies more than blood glucose and is found at higher concentrations (cytosol and phloem ca. 100 mM v 3.9-6.9 mM for blood glucose). Tissue sucrose varies with developmental stage and environment, but cytosol and phloem exhibit tight sucrose control. Sucrose homeostasis is a consequence of the integration of photosynthesis, synthesis of storage end-products such as starch, transport of sucrose to sinks and sink metabolism. Trehalose 6-phosphate (T6P)-SnRK1 and TOR play central, still emerging roles in regulating and coordinating these processes. Overall, tissue sucrose levels are more strongly related to growth than to photosynthesis. As a key sucrose signal, T6P regulates sucrose levels, transport and metabolic pathways to coordinate source and sink at a whole plant level. Emerging evidence shows that T6P interacts with meristems. With careful targeting, T6P manipulation through exploiting natural variation, chemical intervention and genetic modification is delivering benefits for crop yields. Regulation of cereal grain set, filling and retention may be the most strategically important aspect of sucrose allocation and homeostasis for food security
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|a Journal Article
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|a Review
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|a Assimilate partitioning
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|a Crop yield
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|a Source-sink
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|a Sucrose
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|a T6P
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|a Sucrose
|2 NLM
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|a 57-50-1
|2 NLM
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|a Blood Glucose
|2 NLM
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|a Sugar Phosphates
|2 NLM
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|a Trehalose
|2 NLM
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| 650 |
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|a B8WCK70T7I
|2 NLM
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| 700 |
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|a Griffiths, Cara A
|e verfasserin
|4 aut
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| 700 |
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|a Paul, Matthew J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 294(2024) vom: 12. März, Seite 154188
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnas
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| 773 |
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|g volume:294
|g year:2024
|g day:12
|g month:03
|g pages:154188
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|u http://dx.doi.org/10.1016/j.jplph.2024.154188
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