C. Bourbousse

An active light signalling pathway is necessary for ABA-induced inhibition of hypocotyl elongation.

This study shows that an active light signaling pathway is necessary for ABA-induced inhibition of hypocotyl elongation in light-grown seedlings, but not in dark-grown etiolated seedlings.

Genome-wide evidence of the role of Paf1C in transcription elongation and histone H2B monoubiquitination in Arabidopsis

This study shows Paf1C promotes transcription elongation and H2B monoubiquitination in Arabidopsis by analyzing subunit occupancy and RNAPII dynamics.

Distinct clades of TELOMERE REPEAT BINDING transcriptional regulators interplay to regulate plant development

This study identifies TRB4 and TRB5 as distinct TRB clades that regulate plant development through both PRC2-dependent and independent mechanisms, affecting gene expression and developmental responses to environmental cues.

Hypometabolism to survive the long polar night in the diatom Fragilariopsis cylindrus

This study shows polar diatoms enter a quiescent state during prolonged darkness, relying on autophagy and stored energy to survive, and rapidly resume photosynthesis when light returns.

The CLASSY family controls tissue-specific DNA methylation patterns in Arabidopsis

This study identifies CLASSY1-4 as key regulators of tissue-specific DNA methylation in Arabidopsis, showing their role in shaping epigenetic diversity during development.

DET1-mediated COP1 regulation avoids HY5 activity over second-site targets to tune plant photomorphogenesis

This study shows DET1 stabilizes COP1 to reduce HY5 protein levels, preventing HY5 from over-activating second-site targets and causing hyper-photomorphogenic phenotypes.

Arabidopsis S2Lb links AtCOMPASS-like and SDG2 activity in histone H3 Lys-4 trimethylation independently from histone H2B monoubiquitination

This study identifies S2Lb as a co-regulator of H3K4me3 with SDG2 in Arabidopsis, showing H3K4me3 deposition is H2Bub-independent and important for gene induction during cellular transitions.

DET1-mediated degradation of a SAGA-like deubiquitination module controls H2Bub homeostasis

The paper shows DET1 regulates H2Bub homeostasis in Arabidopsis by controlling the stability of a DUBm through interaction with DDA1.