ArticleJournal of experimental botany2020
Molecular and functional characterization of the SBP-box transcription factor SPL-CNR in tomato fruit ripening and cell death.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 45 citations in OpenAlex.
- Regulation of the growth-to-ripening transition in tomato fruits by energy charge involving SlATP-PRT and SlAPRT1.Molecular horticulture · 2026Article
- Epigenetic orchestration of sugar signaling in plant development and stress adaptation.Horticulture research · 2026Article
- Tomato NAC2-DREB2 module fine-tunes saline-alkali stress sensitivity via modulation of melatonin biosynthesis and ROS homeostasis.Horticulture research · 2026Article
- The carotenoids metabolism during tomato fruit ripening: insights into multi-level regulatory network.BMC plant biology · 2026Review
- Genome-wide identification of the SBP-box gene family in banana and functional characterization of MaSBP17 as a negative regulator of fruit ripening.Frontiers in plant science · 2026Article
- A comprehensive SPET-based linkage mapping for berry texture and defective seed development in grapevine.Frontiers in plant science · 2026Article
- Genome-wide identification and expression analysis of the SPL transcription factor family and its expression characteristics in Elymus sibiricus.BMC plant biology · 2025Article
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- Genome-wide analysis of the SPL family in Zanthoxylum armatum and ZaSPL21 promotes flowering and improves salt tolerance in transgenic Nicotiana benthamiana.Plant molecular biology · 2025Article
- Virus-InducedPlants (Basel, Switzerland) · 2024Article
- Transcription factor NOR and CNR synergistically regulate tomato fruit ripening and carotenoid biosynthesis.Molecular horticulture · 2024Article
- Involvement of the GH38 Family Exoglycosidase α-Mannosidase in Strawberry Fruit Ripening.International journal of molecular sciences · 2024Article
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- Recent Advances in Studying the Regulation of Fruit Ripening in Tomato Using Genetic Engineering Approaches.International journal of molecular sciences · 2024Review
- Epigenetic insights into an epimutantFrontiers in plant science · 2024Review
- Phosphoribosyltransferases and Their Roles in Plant Development and Abiotic Stress Response.International journal of molecular sciences · 2023Review
- Genome-Wide Identification of the SQUAMOSA Promoter-Binding Protein-like (SPL) Transcription Factor Family in Sweet Cherry Fruit.International journal of molecular sciences · 2023Article
- Proteomic Changes in Response toPlants (Basel, Switzerland) · 2022Article
- Silencing of the Target of Rapamycin Complex Genes Stimulates Tomato Fruit Ripening.Molecules and cells · 2022Article
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Authors and funding
17 authors at 7 institutions in 4 countries.
Funding
Abstract
SlSPL-CNR, an SBP-box transcription factor (TF) gene residing at the epimutant Colourless non-ripening (Cnr) locus, is involved in tomato ripening. This epimutant provides a unique model to investigate the (epi)genetic basis of fruit ripening. Here we report that SlSPL-CNR is a nucleus-localized protein with a distinct monopartite nuclear localization signal (NLS). It consists of four consecutive residues ' 30KRKR33' at the N-terminus of the protein. Mutation of the NLS abolishes SlSPL-CNR's ability to localize in the nucleus. SlSPL-CNR comprises two zinc-finger motifs (ZFMs) within the C-terminal SBP-box domain. Both ZFMs contribute to zinc-binding activity. SlSPL-CNR can induce cell death in tomato and tobacco, dependent on its nuclear localization. However, the two ZFMs have differential impacts on SlSPL-CNR's induction of severe necrosis or mild necrotic ringspot. NLS and ZFM mutants cannot complement Cnr fruits to ripen. SlSPL-CNR interacts with SlSnRK1. Virus-induced SlSnRK1 silencing leads to reduction in expression of ripening-related genes and inhibits ripening in tomato. We conclude that SlSPL-CNR is a multifunctional protein that consists of a distinct monopartite NLS, binds to zinc, and interacts with SlSnRK1 to affect cell death and tomato fruit ripening.
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