ArticlePlant biotechnology journal2023
GhXB38D represses cotton fibre elongation through ubiquitination of ethylene biosynthesis enzymes GhACS4 and GhACO1.
Article in Plant biotechnology journal, 2023. 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, 17 citations in OpenAlex.
- The trade-off mechanism between fiber elongation and seed vigor formation mediated by the RCD1-MYC3 module in cotton.Science China. Life sciences · 2026Article
- The mitogen-activated protein kinase GhMPK3 participates in ethylene signaling regulating fiber elongation in cotton (Gossypium hirsutum).Plant cell reports · 2026Article
- Identification of Key Genes for the Simultaneous Improvement of Fiber Strength and Lint Percentage inInternational journal of molecular sciences · 2026Article
- A comparative framework for trichome and trichome-derived epidermal appendage development across model glycophytes and halophytes.Plant cell reports · 2026Review
- Evolutionary Divergence of an Ethylene-Responsive Transcriptional Cascade Governs a Dose-Dependent Balance between Cotton Fiber Length and Strength.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- The triggering mechanism for predominant hormonal signal production in fleshy fruit ripening.Molecular horticulture · 2025Review
- A GDSL esterase/lipase gene GbGELP identified from a fiber micronaire QTL qMIC-A11 modulates cell elongation and fiber development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genes Affecting Cotton Fiber Length: A Systematic Review and Meta-Analysis.Plants (Basel, Switzerland) · 2025Article
- Transcriptional regulation of phospholipid transport in cotton fiber elongation by GhMYB30D04-GhHD1 interaction complex.Journal of integrative plant biology · 2024Article
- GhATL68b regulates cotton fiber cell development by ubiquitinating the enzyme required for β-oxidation of polyunsaturated fatty acids.Plant communications · 2024Article
- Comparative Transcriptomic Analysis ofPlants (Basel, Switzerland) · 2024Article
- The Ethylene Biosynthetic Enzymes, 1-Aminocyclopropane-1-Carboxylate (ACC) Synthase (ACS) and ACC Oxidase (ACO): The Less Explored Players in Abiotic Stress Tolerance.Biomolecules · 2024Review
- Activation ofPlants (Basel, Switzerland) · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ethylene plays an essential role in the development of cotton fibres. Ethylene biosynthesis in plants is elaborately regulated by the activities of key enzymes, 1-aminocyclopropane-1-carboxylate oxidase (ACO) and 1-aminocyclopropane-1-carboxylate synthase (ACS); however, the potential mechanism of post-translational modification of ACO and ACS to control ethylene synthesis in cotton fibres remains unclear. Here, we identify an E3 ubiquitin ligase, GhXB38D, that regulates ethylene biosynthesis during fibre elongation in cotton. GhXB38D gene is highly expressed in cotton fibres during the rapid elongation stage. Suppressing GhXB38D expression in cotton significantly enhanced fibre elongation and length, accompanied by the up-regulation of genes associated with ethylene signalling and fibre elongation. We demonstrated that GhXB38D interacts with the ethylene biosynthesis enzymes GhACS4 and GhACO1 in elongating fibres and specifically mediates their ubiquitination and degradation. The inhibition of GhXB38D gene expression increased the stability of GhACS4 and GhACO1 proteins in cotton fibres and ovules, resulting in an elevated concentration of ethylene. Our findings highlight the role of GhXB38D as a regulator of ethylene synthesis by ubiquitinating ACS4 and ACO1 proteins and modulating their stability. GhXB38D acts as a negative regulator of fibre elongation and serves as a potential target for enhancing cotton fibre yield and quality through gene editing strategy.
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