Figure 3.

Effects of probenecid on cAMP-induced aggregation. The t₀ pigment index was 0.88 ± 0.03 (n = 4) after a 30 minute preculture. The control, containing 1.0 mM cAMP and DMSO, had a pigment index of 0.72 ± 0.03 (n = 4, except where noted).