Fig. 3From: Mechanism and enhancement of lipid accumulation in filamentous oleaginous microalgae Tribonema minus under heterotrophic conditionPCA analysis of metabolites in T. minus under photoautotrophic and heterotrophic conditions. a OPLS-DA score plot; b OPLS-DA loading plot with the parameters responsible for the culture conditions. A1, A2, A3: photoautotrophic samples; H1, H2, H3: heterotrophic samplesBack to article page