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交叉养促进了酵母细胞种群中的异质性

Kevin K Y Hu¹, Ankita Suri¹, Geoff Dumsday²

¹Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, 3800, Australia.

Nature communications

|January 10, 2024

概括

酵母菌种群中的细胞异质性源于基因表达和环境因素. 细胞之间的交叉养使细胞能够在选择性条件下生存,影响等离子体动态和种群多样性.

科学领域:

微生物学微生物学
系统生物学系统生物学
遗传学是一个遗传学.

背景情况:

同源种群中的细胞异质性是由静态基因表达和环境因素驱动的.
这种异质性对于人口健康至关重要,特别是在抗微生物和抗癌治疗中,压力耐受性是关键.

研究的目的:

为了研究酵母种群中的等离子体保留动态.
了解代谢物交换在选择性压力下细胞生存和增殖中的作用.

主要方法:

研究了与等离子体补充的 ura3∆0 酵母细胞中的等离子体保留.
分析了原生菌和辅生菌之间的代谢物交换 (交叉养).
利用有针对性的基因工程来操纵交叉养动态.

主要成果:

证明,互补代谢物的交叉养使得无等离子体的辅助菌能够在选择性环境中生存和繁殖.
观察到,这种交换会影响原生菌中的等离子体拷贝数,增强细胞异质性.
表明基因工程可以抑制交叉养或利用它来实现人口多样化.

结论:

代谢物交换是酵母种群细胞异质性和生存的重要驱动因素.
有针对性的遗传策略可以通过调节交叉养来控制种群动态.
这种机制为设计具有专业分工的共同文化系统提供了潜力.

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