ArticlePlant physiology2011
Reactivation of meristem activity and sprout growth in potato tubers require both cytokinin and gibberellin.
Article in Plant physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.
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Who cites it
80 citing papers in PubMed, 201 citations in OpenAlex.
- Integrated Transcriptomic and Phytohormone Metabolomic Analyses Reveal Distinct Molecular States Associated with PSTVd-Induced Potato Tuber Cracking and Knob-like Protuberances at Tuber Eyes.Plants (Basel, Switzerland) · 2026Article
- Potential roles of pseudobulbs in mediating signal responses and hormone translocation during floral bud dormancy release in Pleione bulbocodioides.BMC plant biology · 2026Article
- Tissue specific mechanisms of tuber dormancy after 1,4-dimethylnaphthalene treatment in potato.Food chemistry. Molecular sciences · 2026Article
- Optimisation and economic assessment of a lowcost insecticide for stored product insect pest control and seed viability.Scientific reports · 2026Article
- Re-examining potato dormancy in the context of commercial tuber storage.Journal of experimental botany · 2026Review
- A novelFrontiers in plant science · 2026Article
- Identification of Gene Targets for the Sprouting Inhibitor CIPC.Plant direct · 2025Article
- Regulation of storage organ formation by long-distance tuberigen signals in potato.Horticulture research · 2025Article
- Regulatory Mechanisms of Bud Dormancy: Environmental, Hormonal, and Genetic Perspectives.International journal of molecular sciences · 2025Review
- Investigating the Mechanisms of Adventitious Root Formation in Semi-Tender Cuttings ofInternational journal of molecular sciences · 2025Article
- Metabolome and Transcriptome Analyses Reveal the Correlation Between Fructan Changes and Phytohormone Regulation During Tuber Sprouting ofInternational journal of molecular sciences · 2025Article
- Physiological and molecular mechanisms associated with potato tuber dormancy.Journal of experimental botany · 2024Review
- Polyacrylamide Regulated Phytohormone Balance and Starch Degradation to Promote Seed-Potato Sprouting and Emergence.Plants (Basel, Switzerland) · 2024Article
- Transcriptome Analysis Reveals the Mechanism of Cold-Induced Sweetening in Chestnut during Cold Storage.Foods (Basel, Switzerland) · 2024Article
- Gibberellins Play an Essential Role in the Bud Growth ofCurrent issues in molecular biology · 2024Article
- Potato: from functional genomics to genetic improvement.Molecular horticulture · 2024Review
- Differential gene expression in irradiated potato tubers contributed to sprout inhibition and quality retention during a commercial scale storage.Scientific reports · 2024Article
- Regulatory role ofHorticulture research · 2024Article
- Advances in the Modulation of Potato Tuber Dormancy and Sprouting.International journal of molecular sciences · 2024Review
- Transcriptome Analysis Reveals the Molecular Mechanisms of BR Negative Regulatory Factor StBIN2 Maintaining Tuber Dormancy.International journal of molecular sciences · 2024Article
20 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Reactivation of dormant meristems is of central importance for plant fitness and survival. Due to their large meristem size, potato (Solanum tuberosum) tubers serve as a model system to study the underlying molecular processes. The phytohormones cytokinins (CK) and gibberellins (GA) play important roles in releasing potato tuber dormancy and promoting sprouting, but their mode of action in these processes is still obscure. Here, we established an in vitro assay using excised tuber buds to study the dormancy-releasing capacity of GA and CK and show that application of gibberellic acid (GA(3)) is sufficient to induce sprouting. In contrast, treatment with 6-benzylaminopurine induced bud break but did not support further sprout growth unless GA(3) was administered additionally. Transgenic potato plants expressing Arabidopsis (Arabidopsis thaliana) GA 20-oxidase or GA 2-oxidase to modify endogenous GA levels showed the expected phenotypical changes as well as slight effects on tuber sprouting. The isopentenyltransferase (IPT) from Agrobacterium tumefaciens and the Arabidopsis cytokinin oxidase/dehydrogenase1 (CKX) were exploited to modify the amounts of CK in transgenic potato plants. IPT expression promoted earlier sprouting in vitro. Strikingly, CKX-expressing tubers exhibited a prolonged dormancy period and did not respond to GA(3). This supports an essential role of CK in terminating tuber dormancy and indicates that GA is not sufficient to break dormancy in the absence of CK. GA(3)-treated wild-type and CKX-expressing tuber buds were subjected to a transcriptome analysis that revealed transcriptional changes in several functional groups, including cell wall metabolism, cell cycle, and auxin and ethylene signaling, denoting events associated with the reactivation of dormant meristems.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.