Fig. 3

Analysis of cell growth, photosynthetic efficiency, and primary metabolites of P. tricornutum. a Growth curves. b Photosynthetic efficiency during the whole growth cycle. c, d Protein (c) and carbohydrate (d) content during middle exponential growth phase (day 4) and early stationary phase (day 7). Significant difference between WT and transgenic microalgae is indicated at *p < 0.05 or **p < 0.01 level. Each value represents mean ± SD (n = 3)