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• W2951824462 endingPage "e1007280" @default.
• W2951824462 startingPage "e1007280" @default.
• W2951824462 abstract "Ambient temperature affects plant growth and even minor changes can substantially impact crop yields. The underlying mechanisms of temperature perception and response are just beginning to emerge. Chromatin remodeling, via the eviction of the histone variant H2A.Z containing nucleosomes, is a critical component of thermal response in plants. However, the role of histone modifications remains unknown. Here, through a forward genetic screen, we identify POWERDRESS (PWR), a SANT-domain containing protein known to interact with HISTONE DEACETYLASE 9 (HDA9), as a novel factor required for thermomorphogenesis in Arabidopsis thaliana. We show that mutations in PWR impede thermomorphogenesis, exemplified by attenuated warm temperature-induced hypocotyl/petiole elongation and early flowering. We show that inhibitors of histone deacetylases diminish temperature-induced hypocotyl elongation, which demonstrates a requirement for histone deacetylation in thermomorphogenesis. We also show that elevated temperature is associated with deacetylation of H3K9 at the +1 nucleosomes of PHYTOCHROME INTERACTING FACTOR4 (PIF4) and YUCCA8 (YUC8), and that PWR is required for this response. There is global misregulation of genes in pwr mutants at elevated temperatures. Meta-analysis revealed that genes that are misregulated in pwr mutants display a significant overlap with genes that are H2A.Z-enriched in their gene bodies, and with genes that are differentially expressed in mutants of the components of the SWR1 complex that deposits H2A.Z. Our findings thus uncover a role for PWR in facilitating thermomorphogenesis and suggest a potential link between histone deacetylation and H2A.Z nucleosome dynamics in plants." @default.
• W2951824462 created "2019-06-27" @default.
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• W2951824462 date "2018-03-16" @default.
• W2951824462 modified "2023-10-17" @default.
• W2951824462 title "POWERDRESS-mediated histone deacetylation is essential for thermomorphogenesis in Arabidopsis thaliana" @default.
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• W2951824462 doi "https://doi.org/10.1371/journal.pgen.1007280" @default.
• W2951824462 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5874081" @default.
• W2951824462 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29547672" @default.
• W2951824462 hasPublicationYear "2018" @default.
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