2021年6月16日 · While the central hub transcription factor, PHYTOCHROME INTERCTING FACTOR 4 (PIF4) regulates the above ground tissue response, the below ground root elongation is primarily regulated by ELONGATED...

2021年6月16日，美国德克萨斯大学 奥斯汀 分校Enamul Huq教授团队在Nature Communication杂志在线发表了题为Spatial regulation of thermomorphogenesis by HY5 and PIF4 in Arabidopsis的研究论文，揭示了SPA激酶通过与PIF4和HY5（ELONGATED HYPOCOTYL 5）模块的不同组合及蛋白磷酸化修饰从而调节 ...

2021年12月1日 · Stabilized HY5 suppresses the expression of PIF4 and competes with PIF4 for G-box/E-box cis-elements in the promoters of growth-promoting PIF4 targets to reduce hypocotyl elongation [28, [63], [64], [65]]. Notably, UVR8 also reduces PIF4 and PIF5 protein levels, but the associated regulatory mechanism is not clear [28].

2017年1月10日 · Here, we show that DET1/COP1 and HY5 regulate thermosensory elongation through distinct mechanisms. DET1 and COP1 are essential for promoting PIF4 expression and stabilizing PIF4 protein. Furthermore, HY5 inhibits elongation growth through competitive chromatin binding to PIF4 targets, not through transcriptional regulation of PIF4.

2014年6月12日 · In our study we show that the antagonistic activity of key plant transcription factors involved in phytochrome red light photoreceptors signaling (PIFs and HY5) optimize photosynthetic pigment production in response to environmental cues.

2024年8月29日 · 近日，浙江大学周艳虹课题组在国际知名期刊PNAS上发表了题为“SlCPK27 crosslinks SlHY5 and SlPIF4 in brassinosteroid-dependent photo- and thermo-morphogenesis in tomato”的研究论文，揭示了“HY5-CPK27-PIF4”信号途径整合光温信号，通过影响油菜素内酯（Brassinosteroid, BR）合成来影响 ...

2017年1月10日 · Here, we show that DET1/COP1 and HY5 regulate thermosensory elongation through distinct mechanisms. DET1 and COP1 are essential for promoting PIF4 expression and stabilizing PIF4 protein. Furthermore, HY5 inhibits elongation growth through competitive chromatin binding to PIF4 targets, not through transcriptional regulation of PIF4.

2022年8月30日 · PIF4 and COP1-HY5 integrate light and warm temperature signaling. Warm temperatures trigger the conversion of phyB from active Pfr to inactive Pr form, thereby allowing the accumulation of PIF4. HLS1 SHB1 TCP5, TCP13 and TCP17 positively regulate the PIF4 expression, while HY5 represses the expression of PIF4 at the transcriptional level. CCA1 ...

2021年6月16日 · While the central hub transcription factor, PHYTOCHROME INTERCTING FACTOR 4 (PIF4) regulates the above ground tissue response, the below ground root elongation is primarily regulated by ELONGATED HYPOCOTYL 5 (HY5). Plants respond to high temperature by largely expressing distinct sets of genes in a tissue-specific manner.

2022年8月4日 · The interlocking feed-forward and feed-backward transcriptional regulation of PIF4, BZR1, HY5, and MYC2 co-factors is a signature of robust and temporal control of signaling related to growth and defense.