Figure 4.
Methane assimilation by single cells of alpha (upper panel) and gamma (bottom panel) MOB from 13 m depth. Full arrows indicate hybridized MOB, empty arrows indicate cells of Chlorobium clathratiforme, identified based on morphology. Scale bar on fluorescent images represents 5 μm. Corresponding 32S/12C and 13C/12C nanoSIMS images show distribution of cell biomass and assimilation of 13C-labelled methane, respectively. Note different scales of nanoSIMS ratios. Scale bar on nanoSIMS images represents 2 μm.