ArticleScientific reports2017
SlPIN1 regulates auxin efflux to affect flower abscission process.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 58 citations in OpenAlex.
- A multi-perspective analysis of the regulatory mechanisms governing pedicel abscission in tomato.Plant cell reports · 2026Review
- miRNA-targeted auxin nuclear signalling elements orchestrate flower fate and drought response in yellow lupine.Scientific reports · 2025Article
- Abscission zones: cellular interfaces for the programmed separation of organs.Annals of botany · 2025Review
- A KNOTTED1-LIKE HOMEOBOX PROTEIN1-interacting transcription factor SlGATA6 maintains the auxin-response gradient to inhibit abscission.Science advances · 2025Article
- Transcriptome analyses for revealing leaf abscission of Cyclocarya paliurus stem segments in vitro.BMC genomics · 2025Article
- Virus-Induced Gene Silencing to Unravel the Function of Nicotiana benthamiana Genes Linked to Corolla Abscission.Methods in molecular biology (Clifton, N.J.) · 2025Article
- Advances in Plant Auxin Biology: Synthesis, Metabolism, Signaling, Interaction with Other Hormones, and Roles under Abiotic Stress.Plants (Basel, Switzerland) · 2024Review
- Abscission in plants: from mechanism to applications.Advanced biotechnology · 2024Review
- The YABBY Transcription Factor, SlYABBY2a, Positively Regulates Fruit Septum Development and Ripening in Tomatoes.International journal of molecular sciences · 2024Article
- Integrated analysis of the transcriptome and metabolome reveals the molecular mechanism regulating cotton boll abscission under low light intensity.BMC plant biology · 2024Article
- New Advances in the Study of Regulation of Tomato Flowering-Related Genes Using Biotechnological Approaches.Plants (Basel, Switzerland) · 2024Review
- Recent Advances in Studying the Regulation of Fruit Ripening in Tomato Using Genetic Engineering Approaches.International journal of molecular sciences · 2024Review
- Abscission zone metabolism impacts pre- and post-harvest fruit quality: a very attaching story.Frontiers in plant science · 2024Review
- Auxin efflux carrier PsPIN4 identified through genome-wide analysis as vital factor of petal abscission.Frontiers in plant science · 2024Article
- Phytohormones and candidate genes synergistically regulate fruitlet abscission in Areca catechu L.BMC plant biology · 2023Article
- Comparative Physiological and Transcriptomic Mechanisms of Defoliation in Cotton in Response to Thidiazuron versus Ethephon.International journal of molecular sciences · 2023Article
- The Effects of Graphene-Family Nanomaterials on Plant Growth: A Review.Nanomaterials (Basel, Switzerland) · 2022Review
- Auxin response and transport during induction of pedicel abscission in tomato.Horticulture research · 2021Article
- IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like peptides and HAE (HAESA)-like receptors regulate corolla abscission in Nicotiana benthamiana flowers.BMC plant biology · 2021Article
- Tomato SlBL4 plays an important role in fruit pedicel organogenesis and abscission.Horticulture research · 2021Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Solanum lycopersicum PIN-FORMED1 (SlPIN1), a major auxin efflux facilitator, contributes to the establishment of auxin maxima during organ initiation and development in tomato. However, the functions of SlPIN1 during organ abscission remain unclear. In our study, SlPIN1 expression decreased immediately after flower removal and increased following IAA treatment, indicating a high sensitivity to auxin depletion. 1-MCP (an ethylene inhibitor) delayed abscission and down-regulated SlPIN1, indicating that ethylene may positively regulate SlPIN1 and that low expression levels of SlPIN1 may delay abscission. The SlPIN1 protein levels were not consistent with the expression pattern, implying that in addition to transcription, protein degradation also affects SlPIN1 levels during abscission. The phosphorylation of SlPIN1 at Ser418, which significantly declined during abscission, was found to play roles in SlPIN1 localization and auxin transport. We also identified the interaction proteins of SlPIN1, which were involved in phosphorylation and ubiquitylation. Therefore, complex mechanisms mediate SlPIN1 auxin transport capability during abscission. The silencing of SlPIN1 expression accelerated abscission by increasing auxin accumulation in the ovary and decreasing the auxin content in the abscission zone (AZ), indicating that SlPIN1 plays a major role in mediating auxin source-sink transport and the establishment and maintenance of auxin maxima in the AZ.
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