A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers
One of the early changes upon tuber induction is the switch from apoplastic to symplastic unloading. Whether and how this change in unloading mode contributes to sink strength has remained unclear. In addition, developing tubers also change from energy to storage-based sucrose metabolism. Here, we i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2024-01-01
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| Series: | Quantitative Plant Biology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2632882824000043/type/journal_article |
| _version_ | 1827278879236030464 |
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| author | Bas van den Herik Sara Bergonzi Yingji Li Christian W. Bachem Kirsten H. ten Tusscher |
| author_facet | Bas van den Herik Sara Bergonzi Yingji Li Christian W. Bachem Kirsten H. ten Tusscher |
| author_sort | Bas van den Herik |
| collection | DOAJ |
| description | One of the early changes upon tuber induction is the switch from apoplastic to symplastic unloading. Whether and how this change in unloading mode contributes to sink strength has remained unclear. In addition, developing tubers also change from energy to storage-based sucrose metabolism. Here, we investigated the coordination between changes in unloading mode and sucrose metabolism and their relative role in tuber sink strength by looking into callose and sucrose metabolism gene expression combined with a model of apoplastic and symplastic unloading. Gene expression analysis suggests that callose deposition in tubers is decreased by lower callose synthase expression. Furthermore, changes in callose and sucrose metabolism are strongly correlated, indicating a well-coordinated developmental switch. Modelling indicates that symplastic unloading is not the most efficient unloading mode per se. Instead, it is the concurrent metabolic switch that provides the physiological conditions necessary to potentiate symplastic transport and thereby enhance tuber sink strength . |
| first_indexed | 2024-04-24T08:08:55Z |
| format | Article |
| id | doaj.art-197c956dd4dc41a69110b68ce13dd2ae |
| institution | Directory Open Access Journal |
| issn | 2632-8828 |
| language | English |
| last_indexed | 2024-04-24T08:08:55Z |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Quantitative Plant Biology |
| spelling | doaj.art-197c956dd4dc41a69110b68ce13dd2ae2024-04-17T08:27:16ZengCambridge University PressQuantitative Plant Biology2632-88282024-01-01510.1017/qpb.2024.4A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubersBas van den Herik0https://orcid.org/0009-0002-7994-206XSara Bergonzi1Yingji Li2Christian W. Bachem3https://orcid.org/0000-0002-3077-6833Kirsten H. ten Tusscher4https://orcid.org/0000-0002-1945-7858Computational Developmental Biology, Utrecht University, Utrecht, The NetherlandsPlant Breeding, Wageningen University & Research, Wageningen, The NetherlandsPlant Breeding, Wageningen University & Research, Wageningen, The NetherlandsPlant Breeding, Wageningen University & Research, Wageningen, The NetherlandsComputational Developmental Biology, Utrecht University, Utrecht, The NetherlandsOne of the early changes upon tuber induction is the switch from apoplastic to symplastic unloading. Whether and how this change in unloading mode contributes to sink strength has remained unclear. In addition, developing tubers also change from energy to storage-based sucrose metabolism. Here, we investigated the coordination between changes in unloading mode and sucrose metabolism and their relative role in tuber sink strength by looking into callose and sucrose metabolism gene expression combined with a model of apoplastic and symplastic unloading. Gene expression analysis suggests that callose deposition in tubers is decreased by lower callose synthase expression. Furthermore, changes in callose and sucrose metabolism are strongly correlated, indicating a well-coordinated developmental switch. Modelling indicates that symplastic unloading is not the most efficient unloading mode per se. Instead, it is the concurrent metabolic switch that provides the physiological conditions necessary to potentiate symplastic transport and thereby enhance tuber sink strength .https://www.cambridge.org/core/product/identifier/S2632882824000043/type/journal_articleCalloseSucroseunloadingpotato |
| spellingShingle | Bas van den Herik Sara Bergonzi Yingji Li Christian W. Bachem Kirsten H. ten Tusscher A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers Quantitative Plant Biology Callose Sucrose unloading potato |
| title | A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| title_full | A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| title_fullStr | A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| title_full_unstemmed | A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| title_short | A coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| title_sort | coordinated switch in sucrose and callose metabolism enables enhanced symplastic unloading in potato tubers |
| topic | Callose Sucrose unloading potato |
| url | https://www.cambridge.org/core/product/identifier/S2632882824000043/type/journal_article |
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