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Chromosomal integration of the pSOL1 megaplasmid of Clostridium acetobutylicum for continuous and stable advanced biofuels production
Nature Microbiology ( IF 20.5 ) Pub Date : 2024-06-14 , DOI: 10.1038/s41564-024-01714-w
Muhammad Ehsaan , Minyeong Yoo , Wouter Kuit , Céline Foulquier , Philippe Soucaille , Nigel P. Minton

Biofuel production by Clostridium acetobutylicum is compromised by strain degeneration due to loss of its pSOL1 megaplasmid. Here we used engineering biology to stably integrate pSOL1 into the chromosome together with a synthetic isopropanol pathway. In a membrane bioreactor continuously fed with glucose mineral medium, the final strain produced advanced biofuels, n-butanol and isopropanol, at high yield (0.31 g g−1), titre (15.4 g l−1) and productivity (15.5 g l−1 h−1) without degeneration.



中文翻译:


丙酮丁醇梭菌 pSOL1 大质粒的染色体整合用于连续稳定的先进生物燃料生产



由于 pSOL1 巨质粒的损失,丙酮丁醇梭菌的生物燃料生产受到菌株退化的影响。在这里,我们利用工程生物学将 pSOL1 与合成异丙醇途径一起稳定地整合到染色体中。在连续添加葡萄糖矿物质培养基的膜生物反应器中,最终菌株以高产率(0.31 g g −1 )、滴度(15.4 g l −1 )生产先进的生物燃料、正丁醇和异丙醇。 )和生产率(15.5 g l −1 h −1 ),无退化。

更新日期:2024-06-14
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