ArticlePlant physiology2015
Subtle Regulation of Potato Acid Invertase Activity by a Protein Complex of Invertase, Invertase Inhibitor, and SUCROSE NONFERMENTING1-RELATED PROTEIN KINASE.
Article in Plant physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 60 citations in OpenAlex.
- Nuclear SnRK1 Activity Delays Clubroot Development in Arabidopsis by Reducing Sink Strength.Plant, cell & environment · 2026Article
- RNAi-mediated combinatorial silencing of StUGPase and StVInv genes effectively mitigates cold-induced sweetening in potato.Plant cell reports · 2025Article
- Sucrose synthase dynamics and its potential role in heat stress tolerance in cereals.Frontiers in plant science · 2025Review
- Transcriptomic and metabolomic profiling of the potato plant response to zebra chip disease.PloS one · 2025Article
- Deciphering the regulatory mechanisms of potato cold-induced sweetening via integrated time-course transcriptome and metabolome analysis.Frontiers in plant science · 2025Article
- Potato tonoplast sugar transporter 1 controls tuber sugar accumulation during postharvest cold storage.Horticulture research · 2023Article
- Regulatory and functional divergence among members ofFrontiers in plant science · 2023Article
- An alternative pathway to plant cold tolerance in the absence of vacuolar invertase activity.The Plant journal : for cell and molecular biology · 2023Article
- Management of plant central metabolism by SnRK1 protein kinases.Journal of experimental botany · 2022Review
- Antagonistic Effect ofJournal of fungi (Basel, Switzerland) · 2022Article
- Functional characterization of a cell wall invertase inhibitor StInvInh1 revealed its involvement in potato microtuber sizeFrontiers in plant science · 2022Article
- StRAP2.3, an ERF-VII transcription factor, directly activates StInvInh2 to enhance cold-induced sweetening resistance in potato.Horticulture research · 2021Article
- Transcriptomic Profiling ofJournal of fungi (Basel, Switzerland) · 2021Article
- Article
- PpINH1, an invertase inhibitor, interacts with vacuolar invertase PpVIN2 in regulating the chilling tolerance of peach fruit.Horticulture research · 2020Article
- A sucrose non-fermenting-1-related protein kinase-1 gene, IbSnRK1, improves starch content, composition, granule size, degree of crystallinity and gelatinization in transgenic sweet potato.Plant biotechnology journal · 2019Article
- Regional Heritability Mapping Provides Insights into Dry Matter Content in African White and Yellow Cassava Populations.The plant genome · 2018Article
- Genetic Loci Conferring Reducing Sugar Accumulation and Conversion of Cold-Stored Potato Tubers Revealed by QTL Analysis in a Diploid Population.Frontiers in plant science · 2018Article
- Article
- Amylases StAmy23, StBAM1 and StBAM9 regulate cold-induced sweetening of potato tubers in distinct ways.Journal of experimental botany · 2017Article
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Slowing down cold-induced sweetening (CIS) of potato (Solanum tuberosum) tubers is of economic importance for the potato industry to ensure high-quality products. The conversion of sucrose to reducing sugars by the acid invertase StvacINV1 is thought to be critical for CIS. Identification of the specific StvacINV1 inhibitor StInvInh2B and the α- and β-subunits of the interacting protein SUCROSE NONFERMENTING1-RELATED PROTEIN KINASE from the wild potato species Solanum berthaultii (SbSnRK1) has led to speculation that invertase activity may be regulated via a posttranslational mechanism that remains to be elucidated. Using bimolecular fluorescence complementation assays, this study confirmed the protein complex by pairwise interactions. In vitro kinase assays and protein phosphorylation analysis revealed that phosphorylation of SbSnRK1α is causal for StvacINV1 activity and that its active form blocks the inhibition of StInvInh2B by SbSnRK1β, whereas its inactive form restores the function of SbSnRK1β that prevents StInvInh2B from repressing StvacINV1. Overexpression of SbSnRK1α in CIS-sensitive potato confirmed that SbSnRK1α has significant effects on acid invertase-associated sucrose degradation. A higher level of SbSnRK1α expression was accompanied by elevated SbSnRK1α phosphorylation, reduced acid invertase activity, a higher sucrose-hexose ratio, and improved chip color. Our results lend new insights into a subtle regulatory mode of invertase activity and provide a novel approach for potato CIS improvement.
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