A Theoretical Study of Receptor Mechanisms in Bacterial Chemotaxis
A Theoretical Study of Receptor Mechanisms in Bacterial Chemotaxis
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DOI：
10.1137/0132054
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发表时间：
1977-05
影响因子：
1.9
通讯作者：
L. Segel
中科院分区：
文献类型：
--
作者：
L. Segel
方程的公式，链接的概率细菌突然改变其方向与时间的变化，在数量的引诱剂分子，结合到细菌的受体分子。“记忆”所产生的非瞬时性质的吸引受体的化学反应被考虑在这个一维模型中，通过考虑单独的人口的左，右移动的细菌。以前制定的细菌趋化性的现象学方程恢复时，允许足够浅的梯度扰动分析。提供了详细的比较与某些相关的实验。
Equations are formulated that link the probability of a bacterium suddenly changing its direction with temporal change in the number of attractant molecules that are bound to the bacteria’s receptor molecules. “Memory” arising from the noninstantaneous nature of the attractant-receptor chemical reaction is taken into account in this one-dimensional model by considering separate populations of left- and right-moving bacteria. Previously formulated phenomenological equations for bacterial chemotaxis are recovered when a perturbation analysis is permitted by sufficiently shallow gradients. A detailed comparison is provided with certain relevant experiments.