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Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage
Cold-induced sweetening (CIS), the undesirable sugar accumulation in cold-stored potato (Solanum tuberosum L.) tubers, is a severe postharvest issue in the potato processing industry. Although the process of sucrose hydrolysis by vacuolar invertase during potato CIS is well understood, there is limi...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10548405/ https://www.ncbi.nlm.nih.gov/pubmed/37799627 http://dx.doi.org/10.1093/hr/uhad035 |
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author | Liu, Tengfei Kawochar, Md Abu Begum, Shahnewaz Wang, Enshuang Zhou, Tingting Jing, Shenglin Liu, Tiantian Yu, Liu Nie, Bihua Song, Botao |
author_facet | Liu, Tengfei Kawochar, Md Abu Begum, Shahnewaz Wang, Enshuang Zhou, Tingting Jing, Shenglin Liu, Tiantian Yu, Liu Nie, Bihua Song, Botao |
author_sort | Liu, Tengfei |
collection | PubMed |
description | Cold-induced sweetening (CIS), the undesirable sugar accumulation in cold-stored potato (Solanum tuberosum L.) tubers, is a severe postharvest issue in the potato processing industry. Although the process of sucrose hydrolysis by vacuolar invertase during potato CIS is well understood, there is limited knowledge about the transportation of sucrose from the cytosol to the vacuole during postharvest cold storage. Here, we report that among the three potato tonoplast sugar transporters (TSTs), StTST1 exhibits the highest expression in tubers during postharvest cold storage. Subcellular localization analysis demonstrates that StTST1 is a tonoplast-localized protein. StTST1 knockdown decreases reducing sugar accumulation in tubers during low-temperature storage. Compared to wild-type, potato chips produced from StTST1-silenced tubers displayed significantly lower acrylamide levels and lighter color after cold storage. Transcriptome analysis manifests that suppression of StTST1 promotes starch synthesis and inhibits starch degradation in cold-stored tubers. We further establish that the increased sucrose content in the StTST1-silenced tubers might cause a decrease in the ABA content, thereby inhibiting the ABA-signaling pathway. We demonstrate that the down-regulation of β-amylase StBAM1 in StTST1-silenced tubers might be directly controlled by ABA-responsive element-binding proteins (AREBs). Altogether, we have shown that StTST1 plays a critical role in sugar accumulation and starch metabolism regulation during postharvest cold storage. Thus, our findings provide a new strategy to improve the frying quality of cold-stored tubers and reduce the acrylamide content in potato chips. |
format | Online Article Text |
id | pubmed-10548405 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-105484052023-10-05 Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage Liu, Tengfei Kawochar, Md Abu Begum, Shahnewaz Wang, Enshuang Zhou, Tingting Jing, Shenglin Liu, Tiantian Yu, Liu Nie, Bihua Song, Botao Hortic Res Article Cold-induced sweetening (CIS), the undesirable sugar accumulation in cold-stored potato (Solanum tuberosum L.) tubers, is a severe postharvest issue in the potato processing industry. Although the process of sucrose hydrolysis by vacuolar invertase during potato CIS is well understood, there is limited knowledge about the transportation of sucrose from the cytosol to the vacuole during postharvest cold storage. Here, we report that among the three potato tonoplast sugar transporters (TSTs), StTST1 exhibits the highest expression in tubers during postharvest cold storage. Subcellular localization analysis demonstrates that StTST1 is a tonoplast-localized protein. StTST1 knockdown decreases reducing sugar accumulation in tubers during low-temperature storage. Compared to wild-type, potato chips produced from StTST1-silenced tubers displayed significantly lower acrylamide levels and lighter color after cold storage. Transcriptome analysis manifests that suppression of StTST1 promotes starch synthesis and inhibits starch degradation in cold-stored tubers. We further establish that the increased sucrose content in the StTST1-silenced tubers might cause a decrease in the ABA content, thereby inhibiting the ABA-signaling pathway. We demonstrate that the down-regulation of β-amylase StBAM1 in StTST1-silenced tubers might be directly controlled by ABA-responsive element-binding proteins (AREBs). Altogether, we have shown that StTST1 plays a critical role in sugar accumulation and starch metabolism regulation during postharvest cold storage. Thus, our findings provide a new strategy to improve the frying quality of cold-stored tubers and reduce the acrylamide content in potato chips. Oxford University Press 2023-02-28 /pmc/articles/PMC10548405/ /pubmed/37799627 http://dx.doi.org/10.1093/hr/uhad035 Text en © The Author(s) 2023. Published by Oxford University Press on behalf of Nanjing Agricultural University. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Liu, Tengfei Kawochar, Md Abu Begum, Shahnewaz Wang, Enshuang Zhou, Tingting Jing, Shenglin Liu, Tiantian Yu, Liu Nie, Bihua Song, Botao Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title | Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title_full | Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title_fullStr | Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title_full_unstemmed | Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title_short | Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
title_sort | potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10548405/ https://www.ncbi.nlm.nih.gov/pubmed/37799627 http://dx.doi.org/10.1093/hr/uhad035 |
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