Reference: Zhang Y, et al. (2025) Dynamic regulation and enhancement of synthetic network for efficient biosynthesis of monoterpenoid alpha-pinene in yeast cell factory. Bioresour Technol 132064.

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Abstract


Pinene is a plant volatile monoterpenoid which is used in the fragrance, pesticide, and biofuel industries. Although alpha-pinene has been synthesized in microbial cell factories, the low synthesis efficiency has thus far limited its production. In this study, the cell growth and alpha-pinene production of the engineered yeast were decoupled by a dynamic regulation strategy, resulting in a 101.1-fold increase in alpha-pinene production compared to the control. By enhancing the mevalonate pathway and expanding the cytosolic acetyl-CoA pool, alpha-pinene production was further increased. Overexpression of the transporter Sge1 resulted in a redistribution of global gene transcription, leading to an increased flux of alpha-pinene synthesis. By optimizing the aeration flow rate in 3-L bioreactors, the alpha-pinene production reached 1.8 g/L, which is the highest reported alpha-pinene production in cell factories. Our research provides insights and fundamentals for the efficient synthesis of monoterpenoids in microbial cell factories.

Reference Type
Journal Article
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Zhang Y, Ma Z, Li W, Liu C, Gao H, Wang M, Li L, Zhang Q, Lv B, Qin L, ... Show all
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