ArticlePlant molecular biology2022
Multiple indeterminate domain (IDD)-DELLA1 complexes participate in gibberellin feedback regulation in peach.
Article in Plant molecular biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 19 citations in OpenAlex.
- OsIDD7 integrates signaling networks for arbuscular mycorrhizal symbiosis.Nature communications · 2026Article
- Characterizing the molecular mechanism of the PmIDD5-PmbHLH130-PmCOL5 transcriptional cascade on flowering in Prunus mume.BMC plant biology · 2026Article
- Identification of a cytokinin-responsive core promoter and interacting transcription factors of MtCKX1 in Medicago truncatula.BMC plant biology · 2026Article
- INDETERMINATE DOMAIN-DELLA protein interactions orchestrate gibberellin-mediated cell elongation in wheat and barley.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- A combination of cry (Cry2Ab) and plant lectin (PTA) genes confers resistance against major sucking and chewing insect pests of cotton.Molecular biology reports · 2025Article
- Identification of DELLA and GID1 genes in Catharanthus roseus and their potential role in regulating vindoline biosynthesis.Plant molecular biology · 2025Article
- Integration of ATAC-Seq and RNA-Seq Reveals the Role ofInternational journal of molecular sciences · 2025Article
- INDETERMINATE DOMAIN Transcription Factors in Crops: Plant Architecture, Disease Resistance, Stress Response, Flowering, and More.International journal of molecular sciences · 2024Review
- Article
- Properties of INDETERMINATE DOMAIN Proteins fromGenes · 2023Article
- A Nimble Cloning-compatible vector system for high-throughput gene functional analysis in plants.Plant communications · 2023Article
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Authors and funding
11 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
key messagePeach encodes 14 INDETERMINATE DOMAIN (IDD) transcription factors. PpIDD4, -12 and -13 mediated PpDELLA1 binding to the PpGA20ox1 promoter. Each of these three PpIDD-DELLA1 complexes activated transcription of PpGA20ox1. PpTPR1 and -4 interrupted the interaction of PpIDDs with PpDELLA1. The plant growth regulator gibberellin (GA) plays an important role in the rapid growth of annual shoots in peach. Our previous study showed that the peach cultivar 'FenHuaShouXingTao' (FHSXT), a gibberellic acid receptor (gid1) mutant, accumulates active GAs in annual shoot tips. This mutant enhances GA feedback regulation in peach. The results of this study suggested that the PpIDD-DELLA1 complex is the underlying mechanism of GA feedback regulation in peach. Fourteen IDD genes were identified in peach, and three PpIDDs (PpIDD4, -12 and -13, all from group IV) interacted with PpDELLA1, an important component in GA signaling pathway. Truncation, segmentation and site mutation of the promoter of PpGA20ox1 (a GA biosynthesis gene) showed that all three PpIDD proteins recognized the core motif TTGTC. PpIDD4 and -13 mainly bind to site 3, while PpIDD12 binds to site 5 of the PpGA20ox1 promoter. All three PpIDD-DELLA1 complexes activated the PpGA20ox1 promoter-LUC fusion. These data suggested that PpIDDs bridge PpDELLA1 and the promoter of PpGA20ox1, which then activated the transcription of PpGA20ox1. In addition, PpTPR1 and -4 disrupted the interaction of PpIDDs with PpDELLA1. Our research will be helpful for understanding and possibly modifying the regulation of annual shoot growth and GA biosynthesis.
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