Changes in the lipid content during cell division ofSaccharomyces cerevisiae

Abstract

Changes in the concentration of lipids were followed in synchronously dividing cells of Saccharomyces cerevisiae. Cell division was found to induce a pronounced increase in the concentration of sterols and changes in the concentrations of other types of lipids. The changes associated with the division process are only transient.

Ultrastructural and physico-chemical heterogeneities of yeast surfaces revealed by mapping lateral-friction and normal-adhesion forces using an atomic force microscope

“…AFM measurements confirmed XDLVO model predictions of attachment in the primary minima for E. coli O157:H7 and two environmental isolates E. coli (Morrow et al 2005). In the case of the model yeast cell Saccharomyces cerevisiae, cell division was found to induce a transient but pronounced increase in the concentration of sterols and changes in the concentrations of other types of lipids (Cejkova and Jirku 1978). Elimelech and O'Melia (1990) accounted for heterogeneous surface charge distribution around its average (provided by zeta potential) value and calculated the weighted average of the theoretical particle deposition rates at all combinations of surface charges.…”

Lipid Biochemistry of Fungi and Other Organisms

“…On the other hand, it has been shown that sterols (free and esterified) and phospholipids accumulate in a continuous and exponential pattern during the cell cycle of the yeast Kluyveromyces fragilis (Penman and Duffus, 1976). Increases in sterol content have been associated with cell division in Saccharomyces cerevisiae (Cejkova and Jirku, 1978). It is also well established that sterol esters accumulate with age in the same yeast dividing non-synchronously Changes in lipid composition during the cell cycle of Candida utilis NRRL Y-900 (Prepared from data of Hossack et al, 1979).…”

Lipids in the Structure and Function of Yeast Membrane

“…Phospholipids can serve as a useful cell membrane marker, and their study might be of considerable value in predicting the functional involvement of plasma membrane in growth control of this simple eukaryotic organism. The variation in lipid composition was examined by several workers in synchronously dividing populations of yeast (Hossack et al, 1979;Cejkova and Jirku, 1978;Cottrell et al, 1981;Dudani et al, 1983). The variation in lipid composition was examined by several workers in synchronously dividing populations of yeast (Hossack et al, 1979;Cejkova and Jirku, 1978;Cottrell et al, 1981;Dudani et al, 1983).…”

“…Most of the studies conducted were related to the variation of lipid content in relation to various phases of growth during the yeast cell cycle (Castelli et al, 1969a-c;Illingworth et al, 1973;Cottrell et al, 1981). Using a synchronized population of a diploid strain of S. cerevisiae, Cejkova and Jirku (1978) observed that sterols and phospholipid content increased in dividing cells. Using a synchronized population of a diploid strain of S. cerevisiae, Cejkova and Jirku (1978) observed that sterols and phospholipid content increased in dividing cells.…”