Fig. 3.

Photosynthetic ¹⁴C incorporation into various fractions of LP (a, c, e) and SP cells (b, d, f) of the coccolithophore E. huxleyi NIES 837. a, b ¹⁴C incorporation (dpm cell⁻¹) into various fractions. c, d ¹⁴C distribution (% of total ¹⁴C fixation) into each fraction. Crosses LMC-dominant fraction including ¹⁴C-proteins and ¹⁴C-NA as minor components; plus sign ¹⁴C-LMC value calculated from data obtained separately, as shown in Supplementary Fig. S2 (ca. 75 % of ¹⁴C in LMC-dominant fraction comprised ¹⁴C-LMC after 24 h ¹⁴C-labeling.); closed circles extracellular acid polysaccharides (APext); open circles intracellular acid polysaccharides (APint); closed diamonds alkenones; open diamonds lipids other than alkenones; closed triangles β-glucan. Values are means + SD of three independent experiments. e, f Rates of ¹⁴C incorporation (dpm cell⁻¹ h⁻¹) into the various fraction in LP and SP cells, respectively. For time courses of total ¹⁴C fixation in LP and SP cells see Fig. 2. Values are means + SD