Time-course quantification of carotenoids^a in <i>D. tertiolecta</i> under the various culture conditions^b shifted at the exponential (EX) and stationary (ST) phases.

aNEO, neoxanthin; VIO, violaxanthin; ANT, anthraxanthin; LUT, lutein; γCAR, γ-carotene; αCAR, α-carotene; βCAR, β-carotene; Total, total carotenoids. bLLNS, low light intensity and nitrate sufficiency; LLND, low light intensity and nitrate deficiency; HLNS, high light intensity and nitrate sufficiency; HLND, high light intensity and nitrate deficiency. Each value represents the mean ± standard deviation (SD) (n = 4) Different letters in the same time point represent significant differences (p<0.05) within samples under various culture conditions.