ArticleCurrent issues in molecular biology2023
Sucrose Transporter StSUT2 Affects Potato Plants Growth, Flowering Time, and Tuber Yield.
Article in Current issues in molecular biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Molecular mechanisms and evolutionary adaptations of transporters for photosynthates and specialized metabolites in plants.Plant cell reports · 2026Review
- Re-examining potato dormancy in the context of commercial tuber storage.Journal of experimental botany · 2026Review
- Article
- Organ-specific transcriptional and metabolic adaptations of potato plants to limited phosphate availability prior and after tuberization.The Plant journal : for cell and molecular biology · 2025Article
- Genome-wide identification and expression pattern analysis of the chloride channel gene family in potato (Frontiers in plant science · 2025Article
- The potato sugar transporter SWEET1g affects apoplasmic sugar ratio and phloem-mobile tuber- and flower-inducing signals.Plant physiology · 2024Article
- Potato: from functional genomics to genetic improvement.Molecular horticulture · 2024Review
- Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
backgroundSucrose transporters (SUTs) mediate sucrose phloem loading in source tissue and sucrose unloading into sink tissue in potatoes and higher plants, thus playing a crucial role in plant growth and development. In potatoes, the physiological function of the sucrose transporters StSUT1 and StSUT4 has been clarified, whereas the physiological role of StSUT2 is not yet fully understood. METHODS AND
resultsThis study analyzed the relative expression of StSUT2 compared to that of StSUT1 and StSUT4 in different tissues from potatoes and its impact on different physiological characteristics by using StSUT2-RNA interference lines. Here, we report a negative effect of StSUT2-RNA interference on plant height, fresh weight, internodes number, leaf area, flowering time, and tuber yield. However, our data indicate that StSUT2 is not involved in carbohydrate accumulation in potato leaves and tubers. In addition, the data of the RNA-seq between the StSUT2-RNA interference line and WT showed that 152 genes were differentially expressed, of which 128 genes were upregulated and 24 genes were downregulated, and the GO and KEGG analyses revealed that differentially expressed genes were mainly related to cell wall composition metabolism.
conclusionsThus, StSUT2 functions in potato plant growth, flowering time, and tuber yield without affecting carbohydrate accumulation in the leaves and tubers but may be involved in cell wall composition metabolism.
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