Modeling of spatiotemporal patterns in bacterial colonies
Modeling of spatiotemporal patterns in bacterial colonies
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DOI：
10.1103/physreve.59.7036
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发表时间：
1999-06-01
影响因子：
2.4
通讯作者：
Ramírez-Piscina, L
中科院分区：
文献类型：
--
作者：
Lacasta, AM;Cantalapiedra, IR;Ramírez-Piscina, L
提出了一个细菌菌落生长的扩散-反应模型。经常观察到的合作行为开发的细菌，增加了他们的运动在不利的生长条件下，在这里引入作为一个非线性扩散项。这种机制的存在取决于可以呈现滞后的响应。仅改变琼脂和初始营养物的浓度。所提出的模型的数值积分再现了枯草芽孢杆菌OG-01所示的不同模式。
A diffusion-reaction model for the growth of bacterial colonies is presented. The often observed cooperative behavior developed by bacteria which increases their motility in adverse growth conditions is here introduced as a nonlinear diffusion term. The presence of this mechanism depends on a response which can present hysteresis. By changing only the concentrations of agar and initial nutrient. numerical integration of the proposed model reproduces the different patterns shown by Bacillus subtilis OG-01.