ArticleBMC plant biology2019
A family of auxin conjugate hydrolases from Solanum lycopersicum and analysis of their roles in flower pedicel abscission.
Article in BMC plant biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 51 citations in OpenAlex.
- Metabolism meets transport: a new perspective on auxin homeostasis at subcellular level.Planta · 2026Review
- A multi-perspective analysis of the regulatory mechanisms governing pedicel abscission in tomato.Plant cell reports · 2026Review
- Transcriptome based WGCNA analysis reveals the mechanisms underlying corolla abscission in blueberry (Vaccinium corymbosum L.).BMC plant biology · 2026Article
- Hormone-centric multi-omics atlas of flower and early fruit development in tomato.Plant communications · 2026Article
- Single-cell sequencing and mass spectrometry imaging reveal the multicellular compartmentalization map of plant triterpenes: A ginsenoside in Panax ginseng example.Plant biotechnology journal · 2025Article
- A regulatory network involving calmodulin controls phytosulfokine peptide processing during drought-induced flower abscission.The Plant cell · 2024Article
- THOUSAND-GRAIN WEIGHT 6, which is an IAA-glucose hydrolase, preferentially recognizes the structure of the indole ring.Scientific reports · 2024Article
- New Advances in the Study of Regulation of Tomato Flowering-Related Genes Using Biotechnological Approaches.Plants (Basel, Switzerland) · 2024Review
- Application of Long-Chained Auxin Conjugates Influenced Auxin Metabolism and Transcriptome Response inInternational journal of molecular sciences · 2023Article
- Genome-wide identification, characterization, and expression analysis of the sweet potato (Ipomoea batatas [L.] Lam.) ARF, Aux/IAA, GH3, and SAUR gene families.BMC plant biology · 2023Article
- Non-canonical two-step biosynthesis of anti-oomycete indole alkaloids in Kickxellales.Fungal biology and biotechnology · 2023Article
- Thidiazuron Promotes Leaf Abscission by Regulating the Crosstalk Complexities between Ethylene, Auxin, and Cytokinin in Cotton.International journal of molecular sciences · 2022Article
- Differences in the Abundance of Auxin Homeostasis Proteins Suggest Their Central Roles for In Vitro Tissue Differentiation inPlants (Basel, Switzerland) · 2021Article
- IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like peptides and HAE (HAESA)-like receptors regulate corolla abscission in Nicotiana benthamiana flowers.BMC plant biology · 2021Article
- Diverse Functions of IAA-Leucine Resistant PpILR1 Provide a Genic Basis for Auxin-Ethylene Crosstalk During Peach Fruit Ripening.Frontiers in plant science · 2021Article
- Comparative Proteomics Profiling Illuminates the Fruitlet Abscission Mechanism of Sweet Cherry as Induced by Embryo Abortion.International journal of molecular sciences · 2020Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundAuxin conjugates are hydrolyzed to release free auxin to ensure defined cellular auxin levels or gradients within tissues for proper development or response to environmental signals. The auxin concentration in the abscission zone (AZ) is thought to play an important role in mediating the abscission lag phase.
resultsIn this study, the full cDNA sequences of seven tomato ILR1-like SlILL genes were identified and characterized, All SlILLs were found to have auxin conjugate hydrolysis activity. The effects of different auxin conjugates on abscission identified IAA-Ile as a candidate to determine the auxin conjugate and auxin conjugate hydrolysis functions in abscission. Treatment of pedicel explants with IAA-Ile for different times showed that application before 6 h could effectively delay abscission. IAA-Ile pre-incubation for 2 h was sufficient to inhibit abscission. These results showed that there is not sufficient auxin conjugates in the AZ to inhibit abscission, and the optimal time to inhibit abscission by the application of exogenous auxin conjugates is before 6 h. Treatment with cycloheximide (CHX, a protein biosynthesis inhibitor) indicated that de novo synthesis of auxin conjugate hydrolases is also required to delay abscission. During abscission, SlILL1, 5, and 6 showed abscission-related gene expression patterns, and SlILL1, 3, 5, 6, and 7 showed increasing expression trends, which collectively might contribute to delay abscission. Silencing the expression of SlILL1, 3, 5, 6, and 7 using virus-induced gene silencing showed that SlILL1, 5, and 6 are major mediators of abscission in tomato.
conclusionsIn the process of abscission, auxin inhibition is concentration dependent, and the concentration of auxin in the AZ was regulated by hydrolyzed auxin conjugates. SlILR1, 5, and 6 play a key role in flower pedicel abscission.
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