13C-depletion and high concentration of carbon sources enhance carbon fixation of Nitzschia closterium

Key Points

• Carbon fixation increased significantly under conditions of 13C-depletion and high carbon concentration.
• The enhancement in carbon fixation was linked to metabolic pathways stimulated in Nitzschia closterium.
• Experiment utilized controlled lab conditions to assess the effects of carbon sources on algal growth.
• Findings highlight potential strategies for optimizing carbon fixation in algal species for biofuel applications.