ArticleJournal of experimental botany2011
Polyamine-induced modulation of genes involved in ethylene biosynthesis and signalling pathways and nitric oxide production during olive mature fruit abscission.
Article in Journal of experimental botany, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed, 102 citations in OpenAlex.
- Decoding polyamine-ethylene dynamics: synergies at synthesis and signalling levels during osmotic stress and ripening.Frontiers in plant science · 2026Review
- WRKY27-Horticulture research · 2025Article
- Transcriptome differential expression analysis of defoliation of two different lemon varieties.PeerJ · 2024Article
- Auxin efflux carrier PsPIN4 identified through genome-wide analysis as vital factor of petal abscission.Frontiers in plant science · 2024Article
- Signaling pathways mediating the induction of preharvest fruit drop in litchi.Frontiers in plant science · 2024Article
- Abscission zone metabolism impacts pre- and post-harvest fruit quality: a very attaching story.Frontiers in plant science · 2024Review
- Interactions of Polyamines and Phytohormones in Plant Response to Abiotic Stress.Plants (Basel, Switzerland) · 2023Review
- Copper Amine Oxidase (CuAO)-Mediated Polyamine Catabolism Plays Potential Roles in Sweet Cherry (International journal of molecular sciences · 2022Article
- Metabolome and transcriptome integration reveals insights into the process of delayed petal abscission in rose by STS.Frontiers in plant science · 2022Article
- Ethylene-regulated immature fruit abscission is associated with higher expression ofRoyal Society open science · 2021Article
- Review
- The LcKNAT1-LcEIL2/3 Regulatory Module Is Involved in Fruitlet Abscission in Litchi.Frontiers in plant science · 2021Article
- Update on the Roles of Polyamines in Fleshy Fruit Ripening, Senescence, and Quality.Frontiers in plant science · 2021Review
- Influence of polyamines on hyperhydricity reversion and its associated mechanism during micropropagation of China pink (Physiology and molecular biology of plants : an international journal of functional plant biology · 2020Article
- Article
- Transcriptome and Hormone Analyses Revealed Insights into Hormonal and Vesicle Trafficking Regulation amongInternational journal of molecular sciences · 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
- Article
- Comparative Proteomics Profiling Illuminates the Fruitlet Abscission Mechanism of Sweet Cherry as Induced by Embryo Abortion.International journal of molecular sciences · 2020Article
- Gasotransmitters in Action: Nitric Oxide-Ethylene Crosstalk during Plant Growth and Abiotic Stress Responses.Antioxidants (Basel, Switzerland) · 2019Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
After fruit ripening, many fruit-tree species undergo massive natural fruit abscission. Olive (Olea europaea L.) is a stone-fruit with cultivars such as Picual (PIC) and Arbequina (ARB) which differ in mature fruit abscission potential. Ethylene (ET) is associated with abscission, but its role during mature fruit abscission remains largely uncharacterized. The present study investigates the possible roles of ET and polyamine (PA) during mature fruit abscission by modulating genes involved in the ET signalling and biosynthesis pathways in the abscission zone (AZ) of both cultivars. Five ET-related genes (OeACS2, OeACO2, OeCTR1, OeERS1, and OeEIL2) were isolated in the AZ and adjacent cells (AZ-AC), and their expression in various olive organs and during mature fruit abscission, in relation to interactions between ET and PA and the expression induction of these genes, was determined. OeACS2, OeACO2, and OeEIL2 were found to be the only genes that were up-regulated in association with mature fruit abscission. Using the inhibition of ET and PA biosynthesis, it is demonstrated that OeACS2 and OeEIL2 expression are under the negative control of PA while ET induces their expression in AZ-AC. Furthermore, mature fruit abscission depressed nitric oxide (NO) production present mainly in the epidermal cells and xylem of the AZ. Also, NO production was differentially responsive to ET, PA, and different inhibitors. Taken together, the results indicate that PA-dependent ET signalling and biosynthesis pathways participate, at least partially, during mature fruit abscission, and that endogenous NO and 1-aminocyclopropane-1-carboxylic acid maintain an inverse correlation, suggesting an antagonistic action of NO and ET in abscission signalling.
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