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DOI: 10.4121/82788fe4-7b14-47c3-ba64-7be88dc126b9

Zou, Chunmei; de Vos, Ric C.H.; Mumm, Roland; van Eekelen, Henriëtte D.L.M.; Vos, Aurin M. et. al. (2025): Data underlying the publication: Identifying metabolic indicators of physiological ageing during storage of potato seed tubers. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/82788fe4-7b14-47c3-ba64-7be88dc126b9.v1

Categories

• Plant Biology
• Plant Production and Plant Primary Products
• Biological Sciences

Keywords

dormancy GC-MS LC-MS Solanum tuberosum sprouting

Licence

CC BY 4.0

Interoperability

• RO-Crate Metadata

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by Chunmei Zou , Ric C.H. de Vos , Roland Mumm, Henriëtte D.L.M. van Eekelen, Aurin M. Vos , Dennis te Beest, Maria João Paulo , Robert D. Hall , Martin K. van Ittersum, Willemien J.M. Lommen , Paul C. Struik

Potato tubers undergo distinctive phases during physiological ageing, including dormancy, apical dominance, multiple sprouting, and senescence. Understanding the biochemical processes underlying these transitions and identifying associated metabolic indicators is of great scientific and agricultural relevance. We investigated metabolic changes during tuber ageing in four contrasting potato cultivars stored at different temperatures over two seasons. Physiological phases were delineated based on sprouting capacity progression, and untargeted metabolic profiling using gas and liquid chromatography-mass spectrometry (GC-MS and LC-MS) was employed to identify compounds that changed at key stages. Twenty-two annotatable metabolites exhibited consistent changes during dormancy break across both seasons and have documented biochemical functions in planta. They are mainly associated with four major pathways: primary metabolism, phenylpropanoid metabolism, oxylipin metabolism, and carotenoid metabolism. Based on existing literature, we propose two primary mechanisms underlying dormancy break: (1) mobilisation of storage compound for energy and nutrient supply, reflected in changes in specific sugar derivatives, amino acids, and organic acids; and (2) conversion of growth-inhibiting compounds into less active, more transportable forms, likely mediated by enzymatic processes such as glycosylation, hydroxylation, and oxidation. Further identification of these inhibitory compounds and their modifying enzymes may deepen our understanding of dormancy regulation and inform breeding strategies tailored to specific dormancy traits for both seed and ware potato production.

History

• 2025-07-22 first online, published, posted

Publisher

4TU.ResearchData

Format

xlsx; pdf

Organizations

Centre for Crop Systems Analysis, Wageningen University & Research;
Plant Production Systems, Wageningen University & Research;
Bioscience, Wageningen University & Research;
Biometris, Wageningen University & Research