Movie: EPS production by ammonia oxidisers at a low rate
Watch the biofilm grow from 10 cells per species at time zero to 30,000 min (3 weeks), with one frame per 1,000 min. All frames were rendered with POV-Ray. Each cell is shown as a sphere. The ammonia oxidisers ("Nitroso") are blue, and the EPS they produce is bluish (cyan); the nitrite oxidisers ("Nitro") are red. See the reaction scheme below. The grey box at the bottom is the inert substratum. Note the wrapped around boundaries in the horizontal direction. Scale: total width of the system = 200 µm.
At this lower rate of EPS production, the producing cells spend less energy on EPS synthesis and are thus able to survive. The EPS itself is assumed not to decay in the simulation shown here.
