Fig. 4
From: A novel uncultured heterotrophic bacterial associate of the cyanobacterium Moorea producens JHB

Transmission electron microscopy (TEM) images of 1 Moorea producens JHB, showing its polysaccharide sheath and the location of its associated bacterial community. a Cross section of a filament of M. producens JHB, showing the cell centrally, surrounded by the intermembrane space and polysaccharide sheath. Note that the bacterial growth appears outside the polysaccharide sheath, and not within the intermembrane space. b Close-up of bacterial growth on the outside of the polysaccharide sheath