Fig. 2.

Results of flask cultivations. Growth curve of N. oceanica WS-1 and M1 under the a normal and b high light conditions. Closed and open circles indicate WS-1 and M1, respectively. c Violaxanthin contents and biomass production yield of N. oceanica WS-1 and M1 under different light conditions. Light and dark grey bars indicate violaxanthin contents (mg g^− 1) under normal and high light conditions, respectively. Dots indicate biomass production yields (g L^− 1). Arrows in a and b indicate time points at which sampling was performed to obtain data for c