ArticlePlant biotechnology journal2017
Elevated auxin and reduced cytokinin contents in rootstocks improve their performance and grafting success.
Article in Plant biotechnology journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 29 citations in OpenAlex.
- Short-day photoperiod enhances graft success by increasing auxin accumulation.Plant signaling & behavior · 2026Article
- Effects of Different Plant Growth Regulators on Growth Physiology and Photosynthetic Characteristics ofPlants (Basel, Switzerland) · 2025Article
- Integrated transcriptomic and metabolic analysis reveal the mechanism controlling cucumber-pumpkin grafting compatibility.BMC plant biology · 2025Article
- Here comes the sun: integration of light, temperature, and auxin during herbaceous plant grafting.Planta · 2025Review
- Auxin Dynamics and Transcriptome-Metabolome Integration Determine Graft Compatibility in Litchi (International journal of molecular sciences · 2025Article
- Molecular and physiological characterization of the effects of auxin-enriched rootstock on grafting.Horticulture research · 2021Article
- Root-specific expression of chickpea cytokinin oxidase/dehydrogenase 6 leads to enhanced root growth, drought tolerance and yield without compromising nodulation.Plant biotechnology journal · 2020Article
- Identification and expression analysis of auxin-responsive GH3 family genes in Chinese hickory (Carya cathayensis) during grafting.Molecular biology reports · 2020Article
- Molecular Responses during Plant Grafting and Its Regulation by Auxins, Cytokinins, and Gibberellins.Biomolecules · 2019Review
- Transgenic Reduction of Cytokinin Levels in Roots Inhibits Root-Sprouting inPlant physiology · 2019Article
- Article
- A method for the production and expedient screening of CRISPR/Cas9-mediated non-transgenic mutant plants.Horticulture research · 2018Article
- Endogenous auxin and its manipulation influenceHorticulture research · 2017Article
Corrections and comments
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Authors and funding
12 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant grafting is an important technique for horticultural and silvicultural production. However, many rootstock plants suffer from undesirable lateral bud outgrowth, low grafting success rates or poor rooting. Here, we used a root-predominant gene promoter (SbUGT) to drive the expression of a tryptophan-2-monooxygenase gene (iaaM) from Agrobacterium tumefaciens to increase auxin levels in tobacco. The transgenic plants, when used as a rootstock, displayed inhibited lateral bud outgrowth, enhanced grafting success rate and improved root initiation. However, root elongation and biomass of SbUGT::iaaM transgenic plants were reduced compared to those of wild-type plants. In contrast, when we used this same promoter to drive CKX (a cytokinin degradation gene) expression, the transgenic tobacco plants displayed enhanced root elongation and biomass. We then made crosses between the SbUGT::CKX and SbUGT::iaaM transgenic plants. We observed that overexpression of the CKX gene neutralized the negative effects of auxin overproduction on root elongation. Also, the simultaneous expression of both the iaaM and CKX genes in rootstock did not disrupt normal growth and developmental patterns in wild-type scions. Our results demonstrate that expression of both the iaaM and CKX genes predominantly in roots of rootstock inhibits lateral bud release from rootstock, improves grafting success rates and enhances root initiation and biomass.
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