Global lysine acetylomics reveal that the dark-to-light transition involves widespread protein lysine deacetylation in Arabidopsis seedlings. The far-red light photoreceptor phyA undergoes lysine deacetylation at K65, facilitating its ubiquitination and degradation, which is essential for its role in light signal transduction. The lysine deacetylase HDT2 deacetylates phyA in the nucleus to promote its ubiquitination and degradation in photomorphogenesis. Source link
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This review examines the conserved and unique composition of plant chromatin remodeling complexes, highlighting their crucial roles in epigenetic regulation, stress adaptation, and plant development. It summarizes their specialized mechanisms, including interactions with histone modifications, DNA methylation, and transcription factors, while emphasizing their contributions to gene transcription regulation. The review advances our understanding of how chromatin remodelers coordinate plant responses to developmental signals and environmental stimuli. Source link