HISTONE DEACETYLASE 19 prevents ONSEN transposon silencing under heat stress
ONSEN, a Ty1/Copia-type retrotransposon, is predominantly activated under HS (Ito et al., 2011). In this study, we investigated the role of the histone deacetylase HDA19 in regulating Transposable elements (TE) activity, with a focus on the heat-responsive retrotransposon ONSEN in Arabidopsis. The absence of HDA19 disrupted the establishment of active histone marks H3Ac, under HS.