Fig. 2.




Levels of long chain sphingoid bases during chronological aging. S. cerevisiae BY4741, isc1Δand lcb4Δ cells were grown in YPD medium to the post-diauxic phase, washed twice with H2O and kept in H2O at 26°C. (A) DHS; (B) PHS; (C) DHS-1-P; (D) PHS-1-P. Data are expressed as pmol of lipid/nmol lipid Pi and are means ± SD of three independent experiments.