Colony density influences invasive and filamentous growth inSaccharomyces cerevisiae

Abstract

The effect of colony density on the dimorphic switch was determined in natural strains of Saccharomyces cerevisiae. In some strains invasiveness and pseudohyphal (PH) growth were highly sensitive to colony density; moreover, strains constitutively able to invade the substrate with PH formation positively influenced the invasiveness but not the PH growth of a different strain less prone to the dimorphic switch.

Biotechnological implications of filamentation in Saccharomyces cerevisiae

“…A recent study of Lucaccioni et al (2007) has shown that the colony density positively influenced invasive growth and pseudohyphal formation in some natural strains of S. cerevisiae. However, strains constitutively able to invade the substrate and with pseudohyphal growth positively influenced the invasiveness but not the pseudohyphae formation of a different strain less prone to the dimorphic switch.…”