Cridland J V, Thonemann P C
Biophys J. 1984 Dec;46(6):781-6. doi: 10.1016/S0006-3495(84)84076-X.
The dispersal of an initially well-defined concentration of the motile bacterium Escherichia coli was measured under nonchemotactic conditions. The distribution of bacteria along a glass observation cell was measured by recording the intensity of light scattered by the organisms. For comparison, the diffusion of fluorescein was also measured by determining the distribution of fluorescence throughout the observation cell. The dispersal of bacteria from a plane layer, under nonchemotactic conditions, can be adequately described by the Gaussian solution of the diffusion equation.
在非趋化性条件下，对初始浓度明确的运动性细菌大肠杆菌的扩散进行了测量。通过记录生物体散射光的强度来测量沿玻璃观察池的细菌分布。为作比较，还通过测定整个观察池内荧光素的分布来测量其扩散。在非趋化性条件下，平面层中细菌的扩散可用扩散方程的高斯解来充分描述。
