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Sugar Transport and Signaling in Shoot Branching

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Title: Sugar Transport and Signaling in Shoot Branching
Authors: Doidy, Joan, Wang, Yuhui, Gouaille, Léo, Goma-Louamba, Ingrid, Jiang, Zhengrong, Pourtau, Nathalie, Le Gourrierec, José, Sakr, Soulaiman
Contributors: Sucres & Échanges Végétaux-Environnement Équipe du laboratoire EBI Poitiers (SEVE), Écologie et biologie des interactions UMR 7267 (EBI Poitiers ), Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS), Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Rennes Angers, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Nanjing Agricultural University (NAU), Institut Agro Rennes Angers, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), IRHS - Équipe STRAGENE (Structure et Ramification en réponse à l'Interaction Génotype et Environnement) (IRHS-STRAGENE), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université d'Angers (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Rennes Angers
Source: ISSN: 1661-6596.
Publisher Information: CCSD
MDPI
Publication Year: 2024
Collection: Université de Poitiers: Publications de nos chercheurs.ses (HAL)
Subject Terms: SWEETs, axillary bud, shoot branching, sugar transport and signaling, apoplasmic and symplasmic unloading pathways, SUTs, MESH: Biological Transport, MESH: Carbohydrate Metabolism, MESH: Sucrose / metabolism, MESH: Sugars* / metabolism, MESH: Gene Expression Regulation, Plant, MESH: Plant Development, MESH: Plant Proteins / genetics, MESH: Plant Proteins / metabolism, MESH: Plant Shoots* / growth & development, MESH: Plant Shoots* / metabolism, MESH: Signal Transduction, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, [SDV.SA.HORT]Life Sciences [q-bio]/Agricultural sciences/Horticulture
Description: International audience ; The source–sink relationship is critical for proper plant growth and development, particularly for vegetative axillary buds, whose activity shapes the branching pattern and ultimately the plant architecture. Once formed from axillary meristems, axillary buds remain dormant or become active to grow into new branches. This transition is notably driven by the regulation of the bud sink strength, which is reflected in the ability to unload, metabolize and store photoassimilates. Plants have so far developed two main mechanisms for unloading sugars (sucrose) towards sink organs, a symplasmic pathway and an apoplasmic pathway, but so far limited investigations have been reported about the modes of sugar uptake during the transition from the dormant to the active outgrowth state of the bud. The available data indicate that the switch from dormant bud to active outgrowing state, requires sugar and is shortly preceded by an increase in bud metabolic activity and a remobilization of the stem starch reserves in favor of growing buds. This activation of the bud sink strength is accompanied by an up-regulation of the main markers of apoplasmic unloading, such as sugar transporters (sucrose transporters—SUTs; sugar will eventually be exported transporters—SWEETs), sucrose hydrolyzing enzymes (cell wall invertase—CWINV) and sugar metabolic pathways (glycolysis/tricarboxylic cycle—TCA; oxidative pentose phosphate pathway—OPPP). As these results are limited to a few species, they are not sufficient to provide a complete and accurate picture of the mode(s) of sugar unloading toward axillary buds and deserve to be complemented by additional studies in a wide variety of plants using systems integration, combining genetic, molecular and immunolocalization approaches. Altogether, we discuss here how sugar is a systemic regulator of shoot branching, acting both as an energy-rich molecule and a signaling entity in the establishment of the bud sink strength.
Document Type: article in journal/newspaper
Language: English
Relation: info:eu-repo/semantics/altIdentifier/pmid/39684924; PUBMED: 39684924; PUBMEDCENTRAL: PMC11641904; WOS: 001376458300001
DOI: 10.3390/ijms252313214
Availability: https://hal.science/hal-04910946
https://hal.science/hal-04910946v1/document
https://hal.science/hal-04910946v1/file/ijms-25-13214.pdf
https://doi.org/10.3390/ijms252313214
Rights: https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess
Accession Number: edsbas.2D064AAB
Database: BASE
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PubType: Academic Journal
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  Data: Sugar Transport and Signaling in Shoot Branching
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  Data: <searchLink fieldCode="AR" term="%22Doidy%2C+Joan%22">Doidy, Joan</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yuhui%22">Wang, Yuhui</searchLink><br /><searchLink fieldCode="AR" term="%22Gouaille%2C+Léo%22">Gouaille, Léo</searchLink><br /><searchLink fieldCode="AR" term="%22Goma-Louamba%2C+Ingrid%22">Goma-Louamba, Ingrid</searchLink><br /><searchLink fieldCode="AR" term="%22Jiang%2C+Zhengrong%22">Jiang, Zhengrong</searchLink><br /><searchLink fieldCode="AR" term="%22Pourtau%2C+Nathalie%22">Pourtau, Nathalie</searchLink><br /><searchLink fieldCode="AR" term="%22Le+Gourrierec%2C+José%22">Le Gourrierec, José</searchLink><br /><searchLink fieldCode="AR" term="%22Sakr%2C+Soulaiman%22">Sakr, Soulaiman</searchLink>
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  Data: Sucres & Échanges Végétaux-Environnement Équipe du laboratoire EBI Poitiers (SEVE)<br />Écologie et biologie des interactions UMR 7267 (EBI Poitiers )<br />Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS)<br />Université de Poitiers = University of Poitiers (UP)-Centre National de la Recherche Scientifique (CNRS)<br />Institut de Recherche en Horticulture et Semences (IRHS)<br />Université d'Angers (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Rennes Angers<br />Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)<br />Nanjing Agricultural University (NAU)<br />Institut Agro Rennes Angers<br />Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)<br />IRHS - Équipe STRAGENE (Structure et Ramification en réponse à l'Interaction Génotype et Environnement) (IRHS-STRAGENE)<br />Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université d'Angers (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Rennes Angers
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  Data: Université de Poitiers: Publications de nos chercheurs.ses (HAL)
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  Data: <searchLink fieldCode="DE" term="%22SWEETs%22">SWEETs</searchLink><br /><searchLink fieldCode="DE" term="%22axillary+bud%22">axillary bud</searchLink><br /><searchLink fieldCode="DE" term="%22shoot+branching%22">shoot branching</searchLink><br /><searchLink fieldCode="DE" term="%22sugar+transport+and+signaling%22">sugar transport and signaling</searchLink><br /><searchLink fieldCode="DE" term="%22apoplasmic+and+symplasmic+unloading+pathways%22">apoplasmic and symplasmic unloading pathways</searchLink><br /><searchLink fieldCode="DE" term="%22SUTs%22">SUTs</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Biological+Transport%22">MESH: Biological Transport</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Carbohydrate+Metabolism%22">MESH: Carbohydrate Metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Sucrose+%2F+metabolism%22">MESH: Sucrose / metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Sugars*+%2F+metabolism%22">MESH: Sugars* / metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Gene+Expression+Regulation%22">MESH: Gene Expression Regulation</searchLink><br /><searchLink fieldCode="DE" term="%22Plant%22">Plant</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Plant+Development%22">MESH: Plant Development</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Plant+Proteins+%2F+genetics%22">MESH: Plant Proteins / genetics</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Plant+Proteins+%2F+metabolism%22">MESH: Plant Proteins / metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Plant+Shoots*+%2F+growth+%26+development%22">MESH: Plant Shoots* / growth & development</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Plant+Shoots*+%2F+metabolism%22">MESH: Plant Shoots* / metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22MESH%3A+Signal+Transduction%22">MESH: Signal Transduction</searchLink><br /><searchLink fieldCode="DE" term="%22[SDV%2EBV]Life+Sciences+[q-bio]%2FVegetal+Biology%22">[SDV.BV]Life Sciences [q-bio]/Vegetal Biology</searchLink><br /><searchLink fieldCode="DE" term="%22[SDV%2ESA%2EHORT]Life+Sciences+[q-bio]%2FAgricultural+sciences%2FHorticulture%22">[SDV.SA.HORT]Life Sciences [q-bio]/Agricultural sciences/Horticulture</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: International audience ; The source–sink relationship is critical for proper plant growth and development, particularly for vegetative axillary buds, whose activity shapes the branching pattern and ultimately the plant architecture. Once formed from axillary meristems, axillary buds remain dormant or become active to grow into new branches. This transition is notably driven by the regulation of the bud sink strength, which is reflected in the ability to unload, metabolize and store photoassimilates. Plants have so far developed two main mechanisms for unloading sugars (sucrose) towards sink organs, a symplasmic pathway and an apoplasmic pathway, but so far limited investigations have been reported about the modes of sugar uptake during the transition from the dormant to the active outgrowth state of the bud. The available data indicate that the switch from dormant bud to active outgrowing state, requires sugar and is shortly preceded by an increase in bud metabolic activity and a remobilization of the stem starch reserves in favor of growing buds. This activation of the bud sink strength is accompanied by an up-regulation of the main markers of apoplasmic unloading, such as sugar transporters (sucrose transporters—SUTs; sugar will eventually be exported transporters—SWEETs), sucrose hydrolyzing enzymes (cell wall invertase—CWINV) and sugar metabolic pathways (glycolysis/tricarboxylic cycle—TCA; oxidative pentose phosphate pathway—OPPP). As these results are limited to a few species, they are not sufficient to provide a complete and accurate picture of the mode(s) of sugar unloading toward axillary buds and deserve to be complemented by additional studies in a wide variety of plants using systems integration, combining genetic, molecular and immunolocalization approaches. Altogether, we discuss here how sugar is a systemic regulator of shoot branching, acting both as an energy-rich molecule and a signaling entity in the establishment of the bud sink strength.
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  Data: info:eu-repo/semantics/altIdentifier/pmid/39684924; PUBMED: 39684924; PUBMEDCENTRAL: PMC11641904; WOS: 001376458300001
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  Data: 10.3390/ijms252313214
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