Engineering of fast-growing Vibrio natriegens for biosynthesis of poly(3-hydroxybutyrate-co-lactate)

Autor: Xinye Sun, Yanzhe Shang, Binghao Zhang, Pengye Guo, Yuanchan Luo, Hui Wu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Bioresources and Bioprocessing, Vol 11, Iss 1, Pp 1-9 (2024)
Druh dokumentu: article
ISSN: 2197-4365
DOI: 10.1186/s40643-024-00801-4
Popis: Abstract Poly(3-hydroxybutyrate-co-lactate) [P(3HB-co-LA)] is a highly promising valuable biodegradable material with good biocompatibility and degradability. Vibrio natriegens, owing to its fast-growth, wide substrate spectrum characteristics, was selected to produce P(3HB-co-LA). Herein, the crucial role of acetyltransferase PN96-18060 for PHB synthesis in V. natriegens was identified. Heterologous pathway of P(3HB-co-LA) was introduced into V. natriegens successfully, in addition, overexpression of the dldh gene led to 1.84 fold enhancement of the lactate content in P(3HB-co-LA). Finally, the production of P(3HB-co-LA) was characterized under different carbon sources. The lactate fraction in P(3HB-co-LA) was increased to 28.3 mol% by the modification, about 1.84 times of that of the control. This is the first successful case of producing the P(3HB-co-LA) in V. natriegens. Collectively, this study showed that V. natriegens is an attractive host organism for producing P(3HB-co-LA) and has great potential to produce other co-polymers.
Databáze: Directory of Open Access Journals