2020年2月26日 · The light-activated phyB represses PIF4 activity through both the proteasome-mediated degradation of PIF4 and the prevention of PIF4 from binding to target genes 20,56.

2021年12月1日 · Elevated temperatures can be perceived by phyB, which switches from its bioactive Pfr form to an inactive Pr form. The Pr form of phyB cannot interact with PIF4, which allows PIF stabilization and induces the transcription of thermoresponsive genes to promote hypocotyl elongation under elevated temperatures (Fig. 3) [53, 90].

近日，韩国Korea University的研究团队在Nature Communications 发表了一篇题为The epidermis coordinates thermoresponsive growth through the phyB-PIF4-auxin pathway 的研究论文。 该研究发现 PIF4 在表皮中的表达是其参与植物热响应的关键，并进一步揭示表皮中的PIF4通过生长素信 …

2025年1月1日 · We found that heterografted WT/pif4 and pif4/WT seedlings partially recovered phloem connectivity compared with pif4/pif4 self-grafted plants under elevated ambient temperature (Fig. 4), demonstrating that PIF4 is essential for graft formation in the auxin-mediated response to elevated ambient temperature. Taken together, our results provide ...

2019年1月11日 · This study reveals a novel PHYB-mediated temperature-signaling mechanism, in which HMR acts as an essential transcriptional activator to induce the expression of growth-relevant PIF4 target...

为了验证被CPK6、12磷酸化的Ser80和Ser106位点的生物学意义，作者构建了这两个位点磷酸化缺失的phyB-2A点突基因，与野生型phyB（phyB-WT）基因分别转入phyB突变体植物。亚细胞定位结果显示，黄化苗见光后，phyB-WT能快速入核，但phyB-2A不能入核（图2）。

2020年2月26日 · Taken together, our study demonstrates that the epidermis regulates thermoresponsive growth through the phyB-PIF4-auxin pathway. In plants, an elevation in ambient temperature induces adaptive morphological changes including elongated hypocotyls, which is predominantly regulated by a bHLH transcription factor, PIF4.

2024年7月29日 · Our findings demonstrate that phyB-PIF4 is generally involved in the relay of temperature signals throughout plant development, including the reproductive stage. Furthermore, we identified correlative responses to high ambient temperature between shoot and root tissues.

2021年8月5日 · Here, we show that phyB directly triggers the formation of a repressive chromatin loop by physically interacting with VERNALIZATION INSENSITIVE 3-LIKE1/VERNALIZATION 5 (VIL1/VRN5), a component of...

2018年9月1日 · The phyB-PIF4 module precisely connects light and high temperature cues to gene expression. phyB perceives red light and high temperature signals, and PIF4 acts downstream of phyB-mediated signaling and controls expression of hundreds of genes that precisely modulate diverse biological processes.