Figure 2.

FLO9 and FLO11 are terminal effectors of flocculation and invasive growth. Each row reports morphologies of one homozygous derivative of the flocculent, invasive European strain W7. Δ, engineered loss-of-function allele. Left photographs show overnight cultures in rich liquid medium, and right photographs show the results of invasive growth assays of colonies grown on rich solid medium, both as in Figure 1.