Cell division in Saccharomyces cerevisiae

Saccharomyes cerevisiae reproduces by an asymmetrical budding process. The mother cell produces a bud which grows to approximately 2/3 of the size of the mother cell before separating. This daughter cell then increases further in size before forming its own bud. As a result, daughter cells take longer to reproduce than mother cells.

When the daughter cell separates from the mother, it leaves a 'bud scar' as in this scanning electron microscope photograph, where scars of 6 daughter cells can be seen.

(Photo published originally in Microbiological Reviews 54: 381-431, 1990)

The electron microscope picture on the left shows yeast cells in liquid culture. Cells at various stages of the budding process can be seen.

Original source (higher magnification)