Griffiths, CA, Paul, MJ and Foyer, CH orcid.org/0000-0001-5989-6989 (2016) Metabolite transport and associated sugar signalling systems underpinning source/ sink interactions. Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1857 (10). pp. 1715-1725. ISSN 0005-2728
Abstract
Metabolite transport between organelles, cells and source and sink tissues not only enables pathway co-ordination but it also facilitates whole plant communication, particularly in the transmission of information concerning resource availability. Carbon assimilation is co-ordinated with nitrogen assimilation to ensure that the building blocks of biomass production, amino acids and carbon skeletons, are available at the required amounts and stoichiometry, with associated transport processes making certain that these essential resources are transported from their sites of synthesis to those of utilization. Of the many possible posttranslational mechanisms that might participate in efficient co-ordination of metabolism and transport only reversible thiol-disulphide exchange mechanisms have been described in detail. Sucrose and trehalose metabolism are intertwined in the signalling hub that ensures appropriate resource allocation to drive growth and development under optimal and stress conditions, with trehalose-6-phosphate acting as an important signal for sucrose availability. The formidable suite of plant metabolite transporters provides enormous flexibility and adaptability in inter-pathway coordination and source-sink interactions. Focussing on the carbon metabolism network, we highlight the functions of different transporter families, and the important of thioredoxins in the metabolic dialogue between source and sink tissues. In addition, we address how these systems can be tailored for crop improvement.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Phloem loading; redox regulation; source-sink interactions; sucrose transporters; sugar signalling; trehalose |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Funding Information: | Funder Grant number BBSRC BB/M009130/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Jul 2016 14:34 |
Last Modified: | 23 Jun 2023 22:10 |
Published Version: | http://dx.doi.org/10.1016/j.bbabio.2016.07.007 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.bbabio.2016.07.007 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102877 |