通过自由脂肪酸对膜进行操纵,可以改善微生物植物多合成
Apilaasha Tharmasothirajan1,2, Josef Melcr3, John Linney4
1Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany.
Nature communications
|September 12, 2023
概括
通过减轻其细胞膜损伤,可以改善微生物对白醇的生产. 用特定的自由脂肪酸补充剂使得复星的产量增加了三倍,为多提供了一个具有成本效益的策略.
科学领域:
- 微生物生物技术 微生物生物技术
- 生物化学 生化学
- 分子生物学分子生物学
背景情况:
- 微生物合成为植物提取或化学合成提供了一种可持续的替代方案,用于生产有价值的多.
- 聚醇,如白醇,可以对微生物有细胞毒性,阻碍它们高效的生产.
- 需要策略来克服多对微生物细胞完整性和生产的有害影响.
研究的目的:
- 为了研究Resveratrol在Corynebacterium glutamicum的细胞膜和细胞壁积累的细胞毒性作用.
- 确定减轻白醇有害作用和增强其微生物生产的方法.
- 探索自由脂肪酸补充的潜力,作为改善微生物多生产的策略.
主要方法:
- 使用Corynebacterium glutamicum用于微生物合成复星.
- 采用实验方法和分子动力学模拟来研究复星对细胞膜的影响.
- 选了各种自由脂肪酸补充剂,以确定那些减轻复星的细胞毒性.
主要成果:
- 发现复星的积累会使Corynebacterium glutamicum的细胞膜变硬.
- 棕胺酸和莲状酸被确定为有效的补充剂,以抵消复星的细胞毒性作用.
- 补充这些脂肪酸导致最终的白醇标位增加了三倍.
结论:
- 自由脂肪酸补充是一种经济有效的方法,通过减轻膜损伤来增强微生物的白醇生产.
- 这一策略可转移到其他膜活性生物制品和多的微生物生产.
- 准膜效应是改善微生物细胞工厂的可行工程策略.
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