Figure 4From: Tetrapisispora phaffii killer toxin is a highly specific β-glucanase that disrupts the integrity of the yeast cell wallScanning of the surface (6.25 μm2) of S. cerevisiae cells by a semi-contact cantilever with AFM. (a) Untreated cells; (b) cells treated for 24 h with 100 μg ml-1 purified Kpkt; and (c) cells treated for 24 h with 46 aU K1.Back to article page