论文标题

麦克斯韦梦想着电细菌吗?

Did Maxwell dream of electrical bacteria?

论文作者

Alfinito, Eleonora, Cesaria, Maura, Beccaria, Matteo

论文摘要

我们提出了一个基于辅助静电性间间间断的细菌群体传感的模型,该辅助性来自代表细菌活性的虚拟电荷。引入了用于实施趋化性和复制的指控/活动交换的合作机制。因此,细菌系统由复杂的电阻网络表示,在该网络中,链路重新固定考虑了个体之间允许的活动流。通过显式的空间sto式修理模拟,我们表明该模型表现出不同的准真实行为,从结肠造型到生物膜聚集。与法定人数相关的电信号在空间和时间上是散热的,并提供了有关菌落动力学的有用信息。特别是,我们分析了浮游生物和菌落阶段之间的过渡,因为法定人数的强度变化了。

We propose a model for bacterial Quorum Sensing based on an auxiliary electrostatic-like interac-tion originating from a fictitious electrical charge that represents bacteria activity. A cooperative mechanism for charge/activity exchange is introduced to implement chemotaxis and replication. The bacteria system is thus represented by means of a complex resistor network where link re-sistances take into account the allowed activity-flow among individuals. By explicit spatial sto-chastic simulations, we show that the model exhibits different quasi-realistic behaviors from colo-ny formation to biofilm aggregation. The electrical signal associated with Quorum Sensing is ana-lyzed in space and time and provides useful information about the colony dynamics. In particular, we analyze the transition between the planktonic and the colony phases as the intensity of Quorum Sensing is varied.

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