ArticleThe New phytologist2022
MSD2-mediated ROS metabolism fine-tunes the timing of floral organ abscission in Arabidopsis.
Article in The New phytologist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 28 citations in OpenAlex.
- Leaf Tissue-Specific Phosphorus Allocation Is Linked to Leaf Lifespan in Chickpea Accessions.Plant, cell & environment · 2026Article
- BLADE-ON-PETIOLE Genes Enable Genetic Bottleneck Mitigation Through Cross-Species Repurposing of Floral Persistence Traits.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Linking Superoxide Production and Scavenging in Plant Development.Plant, cell & environment · 2026Review
- Interplay of different signaling mechanisms in regulating programmed cell death during plant development and in response to stresses.Protoplasma · 2026Review
- The secreted redox sensor roGFP2-Orp1 reveals oxidative dynamics in the plant apoplast.Plant biology (Stuttgart, Germany) · 2026Article
- A hierarchical abscission program regulates reproductive allocation inHorticulture research · 2026Article
- The HAESA family of receptor-like kinases: abscission pathways and emerging functions.Frontiers in plant science · 2026Review
- An RbohC and RbohE-mediated ROS oscillatory circuit regulates root cap turnover in Arabidopsis.iScience · 2025Article
- Abscission zones: cellular interfaces for the programmed separation of organs.Annals of botany · 2025Review
- Histological Staining and Hydrogen Peroxide Visualization of the Abscission Zone in Setaria viridis.Methods in molecular biology (Clifton, N.J.) · 2025Article
- Genome-Wide Identification ofInternational journal of molecular sciences · 2024Article
- Abscission zone metabolism impacts pre- and post-harvest fruit quality: a very attaching story.Frontiers in plant science · 2024Review
- Antioxidant enzymes of Pseudochlorella pringsheimii under two stressors: variation of SOD Isoforms activity.Journal of plant research · 2023Article
- How Extracellular Reactive Oxygen Species Reach Their Intracellular Targets in Plants.Molecules and cells · 2023Review
- RCD1 Promotes Salt Stress Tolerance inInternational journal of molecular sciences · 2023Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The timely removal of end-of-purpose flowering organs is as essential for reproduction and plant survival as timely flowering. Despite much progress in understanding the molecular mechanisms of floral organ abscission, little is known about how various environmental factors are integrated into developmental programmes that determine the timing of abscission. Here, we investigated whether reactive oxygen species (ROS), mediators of various stress-related signalling pathways, are involved in determining the timing of abscission and, if so, how they are integrated with the developmental pathway in Arabidopsis thaliana. MSD2, encoding a secretory manganese superoxide dismutase, was preferentially expressed in the abscission zone of flowers, and floral organ abscission was accelerated by the accumulation of ROS in msd2 mutants. The expression of the genes encoding the receptor-like kinase HAESA (HAE) and its cognate peptide ligand INFLORESCENCE DEFICIENT IN ABSCISSION (IDA), the key signalling components of abscission, was accelerated in msd2 mutants, suggesting that MSD2 acts upstream of IDA-HAE. Further transcriptome and pharmacological analyses revealed that abscisic acid and nitric oxide facilitate abscission by regulating the expression of IDA and HAE during MSD2-mediated signalling. These results suggest that MSD2-dependent ROS metabolism is an important regulatory point integrating environmental stimuli into the developmental programme leading to abscission.
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