Comparison of oil and starch reserves in various strains of C. reinhardtii. (A) Relationships between the wild-type and starchless strains tested. Presence of triacylglycerol and starch reserves in N-starved cells is illustrated. Direct progenitors of the mutants are indicated. Loss of the cell wall in some strains is also highlighted. (B, C) Quantification of starch and triacylglycerol accumulation in starchless mutants (sta1-1, sta1-2, sta6, and sta7-1) and its progenitors (CC124, cw15, 330). Culture conditions: TAP-N for 2 days. Values are mean of four independent experiments ± SD.