ArticleJournal of experimental botany2016
Fibre elongation requires normal redox homeostasis modulated by cytosolic ascorbate peroxidase in cotton (Gossypium hirsutum).
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 67 citations in OpenAlex.
- The mechanism of dynamic equilibrium of ascorbate redox status mediated by PbrDHAR5 during scald development in pear fruit.Molecular horticulture · 2026Article
- Optimization of In Vitro Ovule Culture System in Upland Cotton.Plants (Basel, Switzerland) · 2025Article
- Enhanced thermotolerance via overexpression of a stromal ascorbate peroxidase in Nannochloropsis oceanica.Plant cell reports · 2025Article
- Comparative analysis of synteny and functional divergence of APX genes in Fragaria vesca and Fragaria×ananassa.BMC plant biology · 2025Article
- Identification of key proteins related to high-quality fiber in Upland cotton via proteomics analysis.Plant cell reports · 2022Article
- Chloroplast Thylakoidal Ascorbate Peroxidase, PtotAPX, Has Enhanced Resistance to Oxidative Stress inInternational journal of molecular sciences · 2022Article
- Comparative Proteomic Analysis Reveals the Ascorbate Peroxidase-Mediated Plant Resistance toFrontiers in plant science · 2022Article
- Transcriptional Landscape of Cotton Fiber Development and Its Alliance With Fiber-Associated Traits.Frontiers in plant science · 2022Article
- Article
- Genome-Wide Analysis of MDHAR Gene Family in Four Cotton Species Provides Insights into Fiber Development via Regulating AsA Redox Homeostasis.Plants (Basel, Switzerland) · 2021Article
- Regulatory Network of Cotton Genes in Response to Salt, Drought and Wilt Diseases (Frontiers in plant science · 2021Review
- Transformation and Overexpression of Primary Cell Wall Synthesis-Related Zinc Finger GeneFrontiers in plant science · 2021Article
- Quantitative Trait Locus Analysis and Identification of Candidate Genes for Micronaire in an Interspecific Backcross Inbred Line Population ofFrontiers in plant science · 2021Article
- Article
- Ectopic Expressions of theGenes · 2020Article
- ThePlant physiology · 2020Article
- Arbuscular mycorrhizal fungi (AMF) enhanced the growth, yield, fiber quality and phosphorus regulation in upland cotton (Gossypium hirsutum L.).Scientific reports · 2020Article
- Comparative analysis of Constitutive and fiber-specific promoters under the expression pattern of Expansin gene in transgenic Cotton.PloS one · 2020Article
- Cytosolic Ascorbate Peroxidases Plays a Critical Role in Photosynthesis by Modulating Reactive Oxygen Species Level in Stomatal Guard Cell.Frontiers in plant science · 2020Article
- Ascorbic Acid-The Little-Known Antioxidant in Woody Plants.Antioxidants (Basel, Switzerland) · 2019Review
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High-quality cotton fibre equates to a more comfortable textile. Fibre length is an important index of fibre quality. Hydrogen peroxide (H2O2) acts as a signalling molecule in the regulation of fibre elongation. Results from in vitro ovule culture suggest that the alteration of fibre cell H2O2 levels affects fibre development. Ascorbate peroxidase (APX) is an important reactive oxygen species (ROS) scavenging enzyme, and we found that GhAPX1AT/DT encoded one member of the previously unrealized group of cytosolic APXs (cAPXs) that were preferentially expressed during the fibre elongation stage. Transgenic cottons with up- and down-regulation of GhAPX1AT/DT were generated to control fibre endogenous levels of H2O2 Suppression of all cAPX (IAO) resulted in a 3.5-fold increase in H2O2 level in fibres and oxidative stress, which significantly suppressed fibre elongation. The fibre length of transgenic lines with over-expression or specific down-regulation of GhAPX1AT/DT did not show any obvious change. However, the fibres in the over-expression lines exhibited higher tolerance to oxidative stress. Differentially expressed genes (DEGs) in fibres at 10 days post-anthesis (DPA) of IAO lines identified by RNA-seq were related to redox homeostasis, signalling pathways, stress responses and cell wall synthesis, and the DEGs that were up-regulated in IAO lines were also up-regulated in the 10 DPA and 20 DPA fibres of wild cotton compared with domesticated cotton. These results suggest that optimal H2O2 levels and redox state regulated by cytosolic APX are key mechanisms regulating fibre elongation, and dysregulation of the increase in H2O2 induces oxidative stress and results in shorter fibres by initiating secondary cell wall-related gene expression.
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