适应性特征的细胞转移对合作微生物中的亲属和参与者都有好处
Kalpana Subedi1,2, Pravas C Roy1, Brandon Saiz2
1Department of Molecular Biology, University of Wyoming, Laramie, WY 82071.
概括
适应的微生物可以通过外部膜交换 (OME) 与亲属共享保护特征,增强对环境压力和毒素的生存能力. 这种合作对捐赠细胞和受体细胞都有好处.
科学领域:
- 微生物学 微生物学
- 细胞生物学 细胞生物学
- 细菌的适应 细菌的适应
背景情况:
- 微生物细胞遇到不同的环境挑战.
- 已知细胞适应机制,但合作性适应的理解较差.
- 研究社会细菌的合作性适应,为微生物社区动态提供了洞察力.
研究的目的:
- 为了确定适应性特征是否可以转移到非适应性亲属的 * Myxococcus xanthus *.
- 阐明亲属识别系统在合作性适应中的作用.
- 了解特征转移期间对捐赠细胞和受体细胞的适应性后果.
主要方法:
- 隔离了适应洗剂的 * Myxococcus xanthus * 细胞.
- 菌株混合实验以测试特征转移和适应性变化.
- 利用外膜交换 (OME) 突变物来评估特征转移的机制.
主要成果:
- 在菌株混合实验中,观察到适应性特征转移到原始亲属,增加了兄弟姐妹的适应性.
- 合作性特征转移依赖于外膜交换 (OME) 亲属识别系统.
- 适应的 (演员) 细胞也从特征转移中受益,通过减轻亲属的压力反应,间接地保护了演员.
- 转移的特征赋予了对脂蛋白毒素的耐药性.
结论:
- *Myxococcus xanthus*通过获得的特征的转移表现出合作应激适应.
- 外膜交换 (OME) 对于促进这种细胞合作至关重要.
- 合作性适应对接受者和适应的捐赠细胞都有好处,这表明在压力下社会行为的进化优势.
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