Effect of 0 (⧫), 0.86 (◊), 1.73 (▴), 3.45 (□),
and 8.63 (○) μg of DS s3 (1-16) per ml on the growth of S.
cerevisiae X2180-1A in YEPD (inoculum size, 5.0 ×
103 cells ml−1) at pH 7.0 (a), pH 6.0 (b), and
pH 4.0 (c). Growth was measured turbidometrically at 600 nm at 30°C
with shaking over a period of 7 days. A representative result of at
least three replicate experiments is shown.