ArticleBioprocess and biosystems engineering2025
Constructing pyrG marker by CRISPR/Cas facilities the highly-efficient precise genome editing on industrial Aspergillus niger strain.
Article in Bioprocess and biosystems engineering, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Metabolic state-driven monitoring and control of abnormal pigment formation in sodium gluconate fermentation bySynthetic and systems biotechnology · 2027Article
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5 authors.
Funding
Abstract
To prevent the unique difficulty of hygromycin-based gene editing on industrial A. niger strain and increase the working efficiency, the local pyrG marker was removed by well-designed dual sgRNAs and repair template through Cas9-ribonucleoprotein (RNP) strategy in this study. The positive rate of the desired pyrG auxotroph construction was 100%, while no transformant was observed using the traditional methods. The complementation strain showed similar fermentation character as the starting strain. Moreover, an efficient and seamless knock out plasmid-based strategy was established, achieving positive rate at 90% and 50% for challenging Δku70 and Δku80 respectively. Further, combined hygromycin markers and miniaturization cultivation were conducted to select the poor growth strain. Finally, skillfully designed sgRNA and amdS counter-selection repair template were used to obtain ERG3
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