ArticlePlant physiology2009
The cytokinin type-B response regulator PtRR13 is a negative regulator of adventitious root development in Populus.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 167 citations in OpenAlex.
- Molecular and hormonal regulation of plant responses to waterlogging stress: From fundamental mechanisms to potential strategies for engineering crop tolerance.Plant communications · 2026Review
- ABT Promotes Adventitious Root Formation in Mulberry Cuttings by Coordinating Hormonal Homeostasis and Defense Priming.Current issues in molecular biology · 2026Article
- Transcriptomic profiling analysis provides new insights into molecular mechanisms of adventitious rooting recalcitrance in yam vine cuttings.BMC plant biology · 2025Article
- NnDREB2 regulated by NnWOX1-1 is involved in adventitious root formation in lotus root (Nelumbo nucifera Gaertn.).BMC plant biology · 2025Article
- Hormone functions in adventitious root formation during cutting propagation of woody plants.Journal of plant research · 2025Review
- Role of Plant Growth Regulators in AdventitiousPlants (Basel, Switzerland) · 2025Article
- Physiological and Transcriptomic Analyses Reveal Regulatory Mechanisms of Adventitious Root Formation in In Vitro Culture ofInternational journal of molecular sciences · 2025Article
- The Targeted Metabolomic Signatures of Phytohormones in Leaves of Mulberry (Plants (Basel, Switzerland) · 2025Article
- PagARF3.1 promotes adventitious root formation by repressingForestry research · 2025Article
- Multi-omics analysis reveals the mechanism of adventitious roots formation in peach green branch cuttings.Frontiers in plant science · 2025Article
- Transcriptomic profiling and discovery of key transcription factors involved in adventitious roots formation from root cuttings of mulberry.BMC genomics · 2024Article
- Cytokinin signaling promotes root secondary growth and bud formation inJournal of ginseng research · 2024Article
- Article
- Modulating root system architecture: cross-talk between auxin and phytohormones.Frontiers in plant science · 2024Review
- The Cytokinins BAP and 2-iP Modulate Different Molecular Mechanisms on Shoot Proliferation and Root Development in Lemongrass (Plants (Basel, Switzerland) · 2023Article
- Genome-Wide Identification of the RR Gene Family and Its Expression Analysis in Response to TDZ Induction inPlants (Basel, Switzerland) · 2023Article
- Effect of Exogenous Plant Growth Regulators and Rejuvenation Measures on the Endogenous Hormone and Enzyme Activity Responses ofInternational journal of molecular sciences · 2023Article
- Cytokinin-responsive MdTCP17 interacts with MdWOX11 to repress adventitious root primordium formation in apple rootstocks.The Plant cell · 2023Article
- Integrated transgene and transcriptome reveal the molecular basis ofFrontiers in plant science · 2023Article
- CcRR5 interacts with CcRR14 and CcSnRK2s to regulate the root development in citrus.Frontiers in plant science · 2023Article
14 more citing papers are in PubMed but not listed here.
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Adventitious root formation at the base of plant cuttings is an innate de novo organogenesis process that allows massive vegetative propagation of many economically and ecologically important species. The early molecular events following shoot excision are not well understood. Using whole-genome microarrays, we detected significant transcriptome remodeling during 48 h following shoot removal in Populus tremula x Populus alba softwood cuttings in the absence of exogenous auxin, with 27% and 36% of the gene models showing differential abundance between 0 and 6 h and between 6 and 24 h, respectively. During these two time intervals, gene networks involved in protein turnover, protein phosphorylation, molecular transport, and translation were among the most significantly regulated. Transgenic lines expressing a constitutively active form of the Populus type-B cytokinin response regulator PtRR13 (DeltaDDKPtRR13) have a delayed rooting phenotype and cause misregulation of CONTINUOUS VASCULAR RING1, a negative regulator of vascularization; PLEIOTROPIC DRUG RESISTANCE TRANSPORTER9, an auxin efflux transporter; and two APETALA2/ETHYLENE RESPONSE FACTOR genes with sequence similarity to TINY. Inappropriate cytokinin action via DeltaDDKPtRR13 expression appeared to disrupt adventitious root development 24 h after shoot excision, when root founder cells are hypothesized to be sensitive to the negative effects of cytokinin. Our results are consistent with PtRR13 acting downstream of cytokinin to repress adventitious root formation in intact plants, and that reduced cytokinin signaling after shoot excision enables coordinated expression of ethylene, auxin, and vascularization pathways leading to adventitious root development.
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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.