Fig. 1.

Growth response of Dokdonia sp. MED134 in artificial seawater with mixed or single dissolved organic matter compounds at different light conditions. (A) Growth in seawater with yeast extract and peptone (YEP; 0.30 mM carbon). (B) Growth in seawater with alanine (Ala; 0.70 mM carbon). Error bars denote SDs of triplicate cultures; if not visible, error bars are hidden by symbols. Asterisks denote the time points when bicarbonate and leucine incorporation rates were measured, whereas arrows denote the time points for gene expression analyses.