Figure 1.

FA profiles of Ostreococcus and related species of the class Mamiellophyceae. A, Taxonomic origins and geographical and depth locations of Ostreococcus and related species analyzed. nd, Not defined. B, FA profile of all strains grown in flasks without agitation. Means of five independent experiments are shown. Error bars represent se. C, Comparison of FA profiles from an Ostreococcus surface strain (O. tauri) and from Ostreococcus deep strains (RCC788 and RCC809) grown under constant agitation. Means of three independent experiments are shown. Error bars represent se. Cell density was 20 to 45 × 10⁶ cells mL⁻¹ in all experiments.