ArticleThe Plant cell2011
Programmed cell death occurs asymmetrically during abscission in tomato.
Article in The Plant cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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Who cites it
47 citing papers in PubMed, 134 citations in OpenAlex.
- Article
- 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
- Advances in cotton harvesting aids.Frontiers in plant science · 2025Review
- Chloroplast Vesiculation and InducedPlant direct · 2025Article
- Phytohormonal dynamics in the abscission zone of Korla fragrant pear during calyx abscission: a visual study.Frontiers in plant science · 2024Article
- Transcriptome differential expression analysis of defoliation of two different lemon varieties.PeerJ · 2024Article
- Thidiazuron combined with cyclanilide modulates hormone pathways and ROS systems in cotton, increasing defoliation at low temperatures.Frontiers in plant science · 2024Article
- Grain shattering by cell death and fracture in Eragrostis tef.Plant physiology · 2023Article
- MSD2-mediated ROS metabolism fine-tunes the timing of floral organ abscission in Arabidopsis.The New phytologist · 2022Article
- Reproductive development and genetic structure of the mycoheterotrophic orchid Pogoniopsis schenckii Cogn.BMC plant biology · 2021Article
- SlERF52 regulates SlTIP1;1 expression to accelerate tomato pedicel abscission.Plant physiology · 2021Article
- Cross-talk between transcriptome, phytohormone and HD-ZIP gene family analysis illuminates the molecular mechanism underlying fruitlet abscission in sweet cherry (Prunus avium L).BMC plant biology · 2021Article
- EPIP-Evoked Modifications of Redox, Lipid, and Pectin Homeostasis in the Abscission Zone of Lupine Flowers.International journal of molecular sciences · 2021Article
- Comparative Transcriptome Analysis of Salt Stress-Induced Leaf Senescence inFrontiers in plant science · 2021Article
- Expression Kinetics of Regulatory Genes Involved in the Vesicle Trafficking Processes Operating in Tomato Flower Abscission Zone Cells during Pedicel Abscission.Life (Basel, Switzerland) · 2020Article
- Petal abscission in fragrant roses is associated with large scale differential regulation of the abscission zone transcriptome.Scientific reports · 2020Article
- Tomato T2 ribonuclease LE is involved in the response to pathogens.Molecular plant pathology · 2020Article
- Disruption of the Auxin Gradient in the Abscission Zone Area Evokes Asymmetrical Changes Leading to Flower Separation in Yellow Lupine.International journal of molecular sciences · 2020Article
- The anatomy of abscission zones is diverse among grass species.American journal of botany · 2020Article
Corrections and comments
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Authors and funding
12 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abscission occurs specifically in the abscission zone (AZ) tissue as a natural stage of plant development. Previously, we observed delay of tomato (Solanum lycopersicum) leaf abscission when the LX ribonuclease (LX) was inhibited. The known association between LX expression and programmed cell death (PCD) suggested involvement of PCD in abscission. In this study, hallmarks of PCD were identified in the tomato leaf and flower AZs during the late stage of abscission. These included loss of cell viability, altered nuclear morphology, DNA fragmentation, elevated levels of reactive oxygen species and enzymatic activities, and expression of PCD-associated genes. Overexpression of antiapoptotic proteins resulted in retarded abscission, indicating PCD requirement. PCD, LX, and nuclease gene expression were visualized primarily in the AZ distal tissue, demonstrating an asymmetry between the two AZ sides. Asymmetric expression was observed for genes associated with cell wall hydrolysis, leading to AZ, or associated with ethylene biosynthesis, which induces abscission. These results suggest that different abscission-related processes occur asymmetrically between the AZ proximal and distal sides. Taken together, our findings identify PCD as a key mechanism that occurs asymmetrically during normal progression of abscission and suggest an important role for LX in this PCD process.
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