Developmental waves in myxobacteria: A distinctive pattern formation mechanism.
Developmental waves in myxobacteria: A distinctive pattern formation mechanism.
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粘细菌的发育波：独特的模式形成机制。
DOI：
10.1103/physreve.70.041911
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
G. Oster
中科院分区：
文献类型：
--
作者：
O. Igoshin;J. Neu;G. Oster
在它们发育的早期阶段，饥饿的黏菌会组织它们的运动，产生周期性的细胞密度波。这些波是由单个细胞碰撞时通过接触信号协调逆转而产生的。不像由反应扩散不稳定性产生的波，在碰撞中湮灭，粘菌波似乎不受影响地穿过彼此。在这里，我们分析了早期开发的这些波的数学模型[Proc. Natl]。学会科学。[j].美国，1998,14913（2001）。通过追踪单个细胞的逆转位点，可以清楚地揭示产生和维持密度波的机制。导出了在弱信号极限下反转点密度的演化方程。线性稳定性分析确定有利于波浪发展的参数。数值解证明了充分发展的非线性波的稳定性。
In early stages of their development, starving myxobacteria organize their motion to produce a periodic pattern of traveling cell density waves. These waves arise from coordination of individual cell reversals by contact signaling when they collide. Unlike waves generated by reaction-diffusion instabilities, which annihilate on collision, myxobacteria waves appear to pass through one another unaffected. Here we analyze a mathematical model of these waves developed earlier [Proc. Natl. Acad. Sci. USA 98, 14 913 (2001)]]. The mechanisms which generate and maintain the density waves are clearly revealed by tracing the reversal loci of individual cells. An evolution equation of reversal point density is derived in the weak-signaling limit. Linear stability analysis determines parameters favorable for the development of the waves. Numerical solutions demonstrate the stability of the fully developed nonlinear waves.
粘细菌如何以及为何相互交谈。
DOI：
10.1016/s1369-5274(98)80112-4
发表时间：
1998
期刊：
Current opinion in microbiology.
影响因子：
--
作者：
Kaiser,D
通讯作者：
Kaiser,D