Figure 3. Gene expression (top), protein abundance (middle) and
enzyme activity (bottom, modified from Tarrant et al. 2021) for citrate
synthase (left) and glutamate dehydrogenase (middle) and the
first enzyme associated with the electron transport system: NADH
dehydrogenase (right). Patterns of transcript expression and protein
abundance were not statistically significant in pairwise comparisons
(with the exception of NADH dehydrogenase which was significantly higher
in the daytime proteome compared to the night time). For each analysis,
enzyme activity significantly varied over the course of the day.
Clusters of statistical significance are demarcated by letters and error
bars represent standard error. Samples collected during the day at depth
are demarcated in white while those from the surface at night are in
black.