Figure 4
Changes in C37 alkenone composition and labelling patterns over time during the 13C-labelling experiments. C37 alkenones were quantified over time, and amounts are shown for total K37:2 (closed red circles), 13C-K37:2 (open red circles), total K37:3 (closed blue circles), and 13C-K37:3 (open blue circles) in cells grown at 25 °C (A) and transferred to 15 °C on day 3 (B). Magnifications of graphs (A) and (B) are shown as (C) and (D), respectively. Total C37 alkenones and compositions at 15 °C are shown as amounts (E) and relative amounts (F). Each value is the average of three independent experiments. Error bars represent means ± SD.
