ArticleThe Plant cell2022
Strigolactones act downstream of gibberellins to regulate fiber cell elongation and cell wall thickness in cotton (Gossypium hirsutum).
Article in The Plant cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 33 papers.
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33 citing papers in PubMed, 60 citations in OpenAlex.
- Trichomes in Plant Defence, Development and Metabolic Integration Under Environmental Stress.Plant, cell & environment · 2026Review
- The trade-off mechanism between fiber elongation and seed vigor formation mediated by the RCD1-MYC3 module in cotton.Science China. Life sciences · 2026Article
- Identification of Key Genes for the Simultaneous Improvement of Fiber Strength and Lint Percentage inInternational journal of molecular sciences · 2026Article
- Genetic Diversity Analysis of 96Genes · 2026Article
- WGCNA reveals dose-dependent responses and molecular regulatory networks of strigolactone-mediated drought mitigation inFrontiers in plant science · 2026Article
- GbSER02 Interacts With GhVOZ1 to Promote Fiber Elongation by Modulating Gibberellin Synthesis in Cotton.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Characterization and Functional Analysis of theBiology · 2025Article
- Phenotypic and transcriptomic analysis reveals key genes associated with plant height in rubber tree and functional characterization of the candidate gene HbFLA11.The plant genome · 2025Article
- Genes Affecting Cotton Fiber Length: A Systematic Review and Meta-Analysis.Plants (Basel, Switzerland) · 2025Article
- Brassinosteroids enhance gibberellic acid biosynthesis to promote cotton fibre cell elongation.Plant biotechnology journal · 2025Article
- Functional Study ofInternational journal of molecular sciences · 2025Article
- Identification of the citrus GRF gene family and its expression in fruit peel thickening mediated by gibberellin.BMC plant biology · 2025Article
- Cotton GhMAX2 promotes single-celled fiber elongation by releasing the GhS1FA-mediated inhibition of fatty acid biosynthesis.Plant cell reports · 2025Article
- Water stress reduces cellulose deposition in the cell wall and increases wax content, resulting in decreased fiber quality.Frontiers in plant science · 2025Article
- Regulatory networks of coresident subgenomes during rapid fiber cell elongation in upland cotton.Plant communications · 2024Article
- Daily glycome and transcriptome profiling reveals polysaccharide structures and correlated glycosyltransferases critical for cotton fiber growth.The Plant journal : for cell and molecular biology · 2024Article
- GhSBI1, a CUP-SHAPED COTYLEDON 2 homologue, modulates branch internode elongation in cotton.Plant biotechnology journal · 2024Article
- The SMXL8-AGL9 module mediates crosstalk between strigolactone and gibberellin to regulate strigolactone-induced anthocyanin biosynthesis in apple.The Plant cell · 2024Article
- Simultaneous improvement of fiber yield and quality in upland cotton (Molecular breeding : new strategies in plant improvement · 2024Article
- R2R3 MYB Transcription Factor GhMYB201 Promotes Cotton Fiber Elongation via Cell Wall Loosening and Very-Long-Chain Fatty Acid Synthesis.International journal of molecular sciences · 2024Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Strigolactones (SLs) are a class of phytohormones that regulate plant shoot branching and adventitious root development. However, little is known regarding the role of SLs in controlling the behavior of the smallest unit of the organism, the single cell. Here, taking advantage of a classic single-cell model offered by the cotton (Gossypium hirsutum) fiber cell, we show that SLs, whose biosynthesis is fine-tuned by gibberellins (GAs), positively regulate cell elongation and cell wall thickness by promoting the biosynthesis of very long-chain fatty acids (VLCFAs) and cellulose, respectively. Furthermore, we identified two layers of transcription factors (TFs) involved in the hierarchical regulation of this GA-SL crosstalk. The top-layer TF GROWTH-REGULATING FACTOR 4 (GhGRF4) directly activates expression of the SL biosynthetic gene DWARF27 (D27) to increase SL accumulation in fiber cells and GAs induce GhGRF4 expression. SLs induce the expression of four second-layer TF genes (GhNAC100-2, GhBLH51, GhGT2, and GhB9SHZ1), which transmit SL signals downstream to two ketoacyl-CoA synthase genes (KCS) and three cellulose synthase (CesA) genes by directly activating their transcription. Finally, the KCS and CesA enzymes catalyze the biosynthesis of VLCFAs and cellulose, respectively, to regulate development of high-grade cotton fibers. In addition to providing a theoretical basis for cotton fiber improvement, our results shed light on SL signaling in plant development at the single-cell level.
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