Figure 2.

Swarming of V. paradoxus EPS is inhibited in a dose dependent manner by the presence of Congo Red in the agar. Plates containing doses of Congo Red ranging from 1–1000 μg/L were incubated at 30°C either A) under ambient atmospheric humidity or B) in a humidified glass dish. Symbols in both panels: No CR (black diamond), 1 μg/L CR (open square), 10 μg/L CR (filled triangle), 50 μg/L CR (×), 100 μg/L(*), 500 μg/L CR (open circle), 1000 μg/L (+). Swarm diameter measured in triplicate, reported as mean ± SEM.