Figure 3From: Buoyancy studies in natural communities of square gas-vacuolate archaea in saltern crystallizer pondsVertical distribution of prokaryotes from Eilat brine sample 1 (upper panel) and an identical sample in which the gas vesicles had been collapsed by pressurization (lower panel), following centrifugation for 12 h in 10 ml portions at 500 rpm in a SS-34 rotor (radius of centrifugation: 9.4 cm).Back to article page