2014年8月14日 · Here, we show that in Arabidopsis, dark-induced senescence requires phytochrome-interacting transcription factors PIF4 and PIF5 (PIF4/PIF5). ELF3 and phytochrome B inhibit senescence by...

2021年12月1日 · PIF4 acts as a crucial regulator of plant thermomorphogenesis. PIF4 integrates environmental temperature and light cues to regulate plant growth. Plants are sessile and lack behavioural responses to avoid extreme environmental changes linked to annual seasons.

2023年8月2日 · Here, we show that SALT OVERLY SENSITIVE2 (SOS2), a protein kinase essential for salt tolerance, positively regulates SAS in Arabidopsis thaliana. SOS2 directly phosphorylates PIF4 and PIF5 at a serine residue close to …

2024年4月25日 · In general, PIFs are antagonists of PHYB signaling. For instance, the five prominent PIFs – PIF1, PIF3, PIF4, PIF5, and PIF7 – collectively promote hypocotyl elongation 18,40.

2021年5月28日 · Here we showed that PHYTOCHROME INTERACTING FACTOR 4 (PIF4) and PIF5 proteins could efficiently promote heat stress-induced leaf senescence in Arabidopsis. Transcriptomic profiling analysis revealed that PIF4 and PIF5 are likely to function through multiple biological processes including hormone signaling pathways.

2014年8月14日 · ELF3 and phytochrome B inhibit senescence by repressing PIF4/PIF5 at the transcriptional and post-translational levels, respectively. PIF4/PIF5 act in the signalling pathways of two senescence-promoting hormones, ethylene and abscisic acid, by directly activating expression of EIN3, ABI5 and EEL.

2016年1月14日 · Here, we demonstrate that the bHLH transcription factors (TFs) PIF4 and PIF5 are necessary for LBL-induced hypocotyl growth and that they act downstream of CRY1 and CRY2. We also show that CRY1 and CRY2 physically interact with PIF4 and PIF5.

2014年2月26日 · PIF4 plays a critical role in this response, as it has been shown to be impaired in pif4 but not in pif5 mutants. The histone variant H2A.Z has been established to play a major role in warm temperature gene expression, arp6 mutants impaired in H2A.Z deposition displaying constitutive activation of the warm-induced transcriptome (Kumar et al ...

2020年5月6日 · 进一步研究发现，myb30通过结合pif4和pif5启动子上的顺式作用元件，直接激活pif4/pif5基因的表达。此外，myb30还能够和pifs相互作用，抑制pfr形式的phyb与pif4/pif5的互 …

2024年11月16日 · PIF4 and PIF5 directly regulate the transcription of ATG genes during natural leaf senescence, affecting autophagic activity and chloroplast protein degrad