論文 - 詳細
| RRC ID | 76744 |
|---|---|
| 著者 | Fukazawa J, Ohashi Y, Takahashi R, Nakai K, Takahashi Y. |
| タイトル | DELLA degradation by gibberellin promotes flowering via GAF1-TPR-dependent repression of floral repressors in Arabidopsis. |
| ジャーナル | Plant Cell |
| Abstract |
Flowering is the developmental transition from the vegetative to the reproductive phase. FLOWERING LOCUS T (FT), SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1), and LEAFY (LFY) are floral integrators. These genes are repressed by several floral repressors including EARLY FLOWERING3 (ELF3), SHORT VEGETATIVE PHASE (SVP), TEMPRANILLO1 (TEM1), and TEM2. Although gibberellin (GA) promotes flowering by activating the floral integrator genes, the exact molecular mechanism remains unclear. DELLAs are negative regulators in GA signaling and act as coactivators of the transcription factor GAI ASSOCIATED FACTOR 1 (GAF1). GAs convert the GAF1 complex from a transcriptional activator to a repressor. Here, we show that GAF1 functions in the GA-dependent flowering pathway by regulating FT and SOC1 expression in Arabidopsis thaliana. We identified four flowering repressors, ELF3, SVP, TEM1, and TEM2, as GAF1-target genes. In response to GAs, GAF1 forms a transcriptional repressor complex and promotes the expression of FT and SOC1 through the repression of four flowering repressor genes, ELF3, SVP, TEM1, and TEM2. |
| 巻・号 | 33(7) |
| ページ | 2258-2272 |
| 公開日 | 2021-8-13 |
| DOI | 10.1093/plcell/koab102 |
| PII | 6209740 |
| PMID | 33822231 |
| PMC | PMC8364242 |
| MeSH | Arabidopsis / genetics Arabidopsis / metabolism* Arabidopsis Proteins / genetics Arabidopsis Proteins / metabolism* Flowers / genetics Flowers / metabolism Gene Expression Regulation, Plant Gibberellins / metabolism Plants, Genetically Modified / genetics Plants, Genetically Modified / metabolism Promoter Regions, Genetic / genetics Protein Binding Ribonuclease P / genetics Ribonuclease P / metabolism Signal Transduction / physiology Transcription Factors / genetics Transcription Factors / metabolism |
| IF | 9.618 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 16 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| シロイヌナズナ / 植物培養細胞・遺伝子 | rpc00008 |