ArticleJournal of experimental botany2017
Amylases StAmy23, StBAM1 and StBAM9 regulate cold-induced sweetening of potato tubers in distinct ways.
Article in Journal of experimental botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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33 citing papers in PubMed, 115 citations in OpenAlex.
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- A tissue-resolved, network-based transcriptomic framework for abiotic stress responses in sorghum.The Plant journal : for cell and molecular biology · 2026Article
- A structural perspective on α-glucan catabolism in oxygenic phototrophs.The Plant journal : for cell and molecular biology · 2026Review
- RNAi-mediated combinatorial silencing of StUGPase and StVInv genes effectively mitigates cold-induced sweetening in potato.Plant cell reports · 2025Article
- The Pseudoenzyme β-Amylase9 From Arabidopsis Activates α-Amylase3: A Possible Mechanism to Promote Stress-Induced Starch Degradation.Proteins · 2025Article
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- Genome-wide identification of starch metabolism gene families in Potentilla anserina and the expression pattern in response to abiotic stress factors.BMC plant biology · 2025Article
- Deciphering the regulatory mechanisms of potato cold-induced sweetening via integrated time-course transcriptome and metabolome analysis.Frontiers in plant science · 2025Article
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- Molecular and biochemical components associated with chilling tolerance in tomato: comparison of different developmental stages.Molecular horticulture · 2024Article
- Effects of Exocellobiohydrolase CBHA on Fermentation of Tobacco Leaves.Journal of microbiology and biotechnology · 2024Article
- Potato: from functional genomics to genetic improvement.Molecular horticulture · 2024Review
- Molecular Characteristics and Functional Identification of a Key Alpha-Amylase-Encoding GeneInternational journal of molecular sciences · 2024Article
- Comparing the differences in quality profiles and antioxidant activity in seven pumpkin cultivars (Food chemistry: X · 2024Article
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- Comprehensive Identification of the β-Amylase (BAM) Gene Family in Response to Cold Stress in White Clover.Plants (Basel, Switzerland) · 2024Article
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- Genome-Wide Investigation ofInternational journal of molecular sciences · 2023Article
- Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage.Horticulture research · 2023Article
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Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cold-induced sweetening (CIS) in potato is detrimental to the quality of processed products. Conversion of starch to reducing sugars (RS) by amylases is considered one of the main pathways in CIS but is not well studied. The amylase genes StAmy23, StBAM1, and StBAM9 were studied for their functions in potato CIS. StAmy23 is localized in the cytoplasm, whereas StBAM1 and StBAM9 are targeted to the plastid stroma and starch granules, respectively. Genetic transformation of these amylases in potatoes by RNA interference showed that β-amylase activity could be decreased in cold-stored tubers by silencing of StBAM1 and collective silencing of StBAM1 and StBAM9. However, StBAM9 silencing did not decrease β-amylase activity. Silencing StBAM1 and StBAM9 caused starch accumulation and lower RS, which was more evident in simultaneously silenced lines, suggesting functional redundancy. Soluble starch content increased in RNAi-StBAM1 lines but decreased in RNAi-StBAM9 lines, suggesting that StBAM1 may regulate CIS by hydrolysing soluble starch and StBAM9 by directly acting on starch granules. Moreover, StBAM9 interacted with StBAM1 on the starch granules. StAmy23 silencing resulted in higher phytoglycogen and lower RS accumulation in cold-stored tubers, implying that StAmy23 regulates CIS by degrading cytosolic phytoglycogen. Our findings suggest that StAmy23, StBAM1, and StBAM9 function in potato CIS with varying levels of impact.
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