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Fig. 8 | Biotechnology for Biofuels

Fig. 8

From: Time-resolved carotenoid profiling and transcriptomic analysis reveal mechanism of carotenogenesis for astaxanthin synthesis in the oleaginous green alga Chromochloris zofingiensis

Fig. 8

A mechanistic model of carotenogenesis in C. zofingiensis. Boxes in red, blue and black indicate up-, down- and non-regulated pathways, respectively. The MEP pathway produces IPP and DMAPP, which are used for the synthesis of lycopene. The synthesized lycopene can enter both lutein synthesis and astaxanthin synthesis. Astaxanthin and TAG, once synthesized, are packed into the lipid droplet for storage. The dashed arrows indicate connections between pathways. The synergistic regulation of astaxanthin, lutein and TAG by TFs is proposed. Solid arrows indicate positive regulation while the T shape designates negative regulation

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