Ashbya gossypii作为一个多功能平台,可以从农业工业废物中生产sabinene
Gloria Muñoz-Fernández1,2, Javier-Fernando Montero-Bullón1, José Luis Martínez2
1Metabolic Engineering Group, Department of Microbiology and Genetics, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
Fungal biology and biotechnology
|October 30, 2024
概括
工程Ashbya gossypii菌株高效地从农业工业废物中生产植物单烯,如利蒙和沙宾. 这证明了A.gossypii.
科学领域:
- 工业生物技术 工业生物技术
- 代谢工程是代谢工程.
- 合成生物学 合成生物学
背景情况:
- Ashbya gossypii是一种工业相关的,用于生产利博黄素.
- 它显示出作为合成有价值化合物的微生物底盘的潜力,如利蒙.
- 工程菌株可以利用富含糖的农业工业废物流.
研究的目的:
- 通过工程设计的A.gossypii菌株来研究植物单烯的生产.
- 评估农业工业废物的使用作为单二烯生物合成的碳来源.
- 在体内评估植物合成酶的功能性和基质选择性.
主要方法:
- 在两种A. gossypii遗传背景中过度表达异构合成酶.
- 利用一个正交的NPP合成路径和一个突变的erg20等位基因.
- 内源基因 (HMG1,ERG12) 与异质通路的共同过度表达.
- 在混合的农业工业废物流中进行培养 (纤维素酸化物,糖蜜).
主要成果:
- 在A.gossypii中合成了醇,烯,烯和沙烯.
- 烯合成酶对NPP或GPP前体具有差异性的基质选择性.
- 通过共同过度表达策略,通过共同过度表达策略实现了提高的sabinene产量.
- 使用废物流,烯和沙烯的产量分别达到383 mg/L和684.5 mg/L.
结论:
- 工程 A. gossypii 是一个适合评估合成酶功能和选择性的平台.
- 核电站合成酶途径显著提高了烯和沙烯的生产.
- 取得的生产水平与其他工业微生物系统相美.
- 这项工作介绍了一种通过农业工业废物回收利用的单烯生产的新方法.
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