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共享和更具体的遗传决定因素和途径是酵母对,黄油和八酸的耐受性的基础
Marta N Mota1,2,3, Madalena Matos1,3, Nada Bahri1,2,3
1iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001, Lisbon, Portugal.
提高酵母对脂肪酸的耐受性是可持续生物工艺的关键. 这项研究确定了对酸,黄油酸和八酸耐受性的共同遗传标,有助于酵母细胞工厂工程.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 系统生物学 系统生物学
背景情况:
- 提高酵母对单碳酸脂肪酸 (乙,黄油,八酸) 的耐受性对于可持续的生物工艺至关重要.
- 了解耐受性机制指导基因组工程强大的酵母细胞工厂.
- 模型酵母Saccharomyces cerevisiae被用来确定脂肪酸耐受性的遗传决定因素.
研究的目的:
- 确定分子标,并了解酵母对,黄油和八酸的耐受性机制.
- 提供对黄油酸和八酸耐受性基因的基因组规模列表.
- 探索脂肪酸链长度和脂友性对酵母的影响.
主要方法:
- 对Saccharomyces cerevisiae进行了化学基因组分析.
- 生理学研究补充了化学基因组分析.
- 酵母暴露于中度抑制度的,黄油和酸.
主要成果:
- 耐受性的共同遗传决定因素包括真空酸性,细胞内贩运,自和蛋白质合成.
- 耐受性基因数量随着脂肪酸链长度的增加而增加;黄油酸和八酸显示出更多的共同基因.
- 乙酸,由于更喜欢脂质,对细胞外和细胞膜具有更大的有害作用,需要功能性线粒体进行排毒.
结论:
- 这项研究为线性链单碳酸的酵母毒性和耐受性机制提供了新的见解.
- 首次报告了黄油酸和八酸耐受性的基因列表.
- 已识别的基因和功能是合成生物学的潜在目标,以改善酵母细胞工厂的生物处理.
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