作为一种新的选择性标记物,CAR1用于葡萄酒酵母的基因工程
Valery N Urakov1, Andrey V Mardanov2, Alexander I Alexandrov3
1Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia.
Journal of microbiological methods
|October 11, 2023
概括
CAR1基因可以作为工程葡萄酒酵母的选择性标记物. 删除CAR1抑制了阿金氨酸的生长,使其能够用于基因修饰并减少葡萄酒中的致癌物质形成.
科学领域:
- 生物技术是生物技术.
- 微生物遗传学 微生物遗传学
- 食品科学 食品科学 食品科学
背景情况:
- 工业酵母的基因工程,特别是葡萄酒菌株,缺乏有效的选择性标记物.
- 现有的标记物,通常是辅食性突变,可以对酵母生长特征产生负面影响.
研究的目的:
- 评估CAR1基因作为葡萄酒酵母工程的新型选择性标记物.
- 评估CAR1删除对酵母生长的影响及其在转化中的实用性.
主要方法:
- 在富含氨酸的介质上研究了Saccharomyces cerevisiae菌株的生长,其中完全删除了CAR1.
- 利用CAR1作为酵母转化实验的等离子体标记物.
- 应用CRISPR/Cas9技术进行基因改造.
主要成果:
- 在三倍体葡萄酵母菌株中,完全删除CAR1导致了显著的生长抑制,当阿金是唯一的源时.
- 使用CAR1作为等离子体标记物成功转化了具有CAR1删除的菌株.
- 证明了使用CAR1用于基因工程的可行性.
结论:
- 在葡萄酒酵母中,CAR1基因是用于基因工程的实用和有效的选择性标记物.
- 删除CAR1具有双重好处:促进基因改造和减少葡萄酒中乙烯基碳酸盐的积累.
- 这种方法增强了对Saccharomyces cerevisiae的基因操纵,以改善葡萄酒生产.
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