I enjoyed reading your paper. It had me thinking about the range of applications that duckweed offers as a model system.
A few questions: 1. I am curious how you settled on the 3h post-treatment sampling window? Was this based on a pilot time-course, or derived from prior literature on plant stress kinetics? 2. The histone kinase enrichment specific to TEMP+NH4 (Suppl. Fig. 6) is striking but undiscussed. Any hypothesis for the NH4-specificity? If there's any accessibility signal near these genes in your ATAC data, it could be a nice bridge between the transcriptional and chromatin sides of the story.