Histone methylation readers MRG1/2 interact with PIF4 to promote thermomorphogenesis in Arabidopsis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Cell Reports Année : 2024

Histone methylation readers MRG1/2 interact with PIF4 to promote thermomorphogenesis in Arabidopsis

Nana Zhou
  • Fonction : Auteur
Chengzhang Li
  • Fonction : Auteur
Wenhao Xie
  • Fonction : Auteur
Ning Liang
  • Fonction : Auteur
Jiachen Wang
  • Fonction : Auteur
Baihui Wang
  • Fonction : Auteur
Jiabing Wu
  • Fonction : Auteur
Wen-Hui Shen
Bing Liu
  • Fonction : Auteur
Aiwu Dong
  • Fonction : Auteur

Résumé

Warm ambient conditions induce thermomorphogenesis and affect plant growth and development. However, the chromatin regulatory mechanisms involved in thermomorphogenesis remain largely obscure. In this study, we show that the histone methylation readers MORF-related gene 1 and 2 (MRG1/2) are required to promote hypocotyl elongation in response to warm ambient conditions. A transcriptome sequencing analysis indicates that MRG1/2 and phytochrome interacting factor 4 (PIF4) coactivate a number of thermoresponsive genes, including YUCCA8, which encodes a rate-limiting enzyme in the auxin biosynthesis pathway. Additionally, MRG2 physically interacts with PIF4 to bind to thermoresponsive genes and enhances the H4K5 acetylation of the chromatin of target genes in a PIF4-dependent manner. Furthermore, MRG2 competes with phyB for binding to PIF4 and stabilizes PIF4 in planta. Our study indicates that MRG1/2 activate thermoresponsive genes by inducing histone acetylation and stabilizing PIF4 in Arabidopsis.
Fichier principal
Vignette du fichier
islandora_169148.pdf (5.81 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04456338 , version 1 (13-02-2024)

Identifiants

Citer

Nana Zhou, Chengzhang Li, Wenhao Xie, Ning Liang, Jiachen Wang, et al.. Histone methylation readers MRG1/2 interact with PIF4 to promote thermomorphogenesis in Arabidopsis. Cell Reports, 2024, 43 (2), pp.113726. ⟨10.1016/j.celrep.2024.113726⟩. ⟨hal-04456338⟩
9 Consultations
1 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More