论文标题
网络出现和重组在受限的粘液模具中
Network emergence and reorganization in confined slime moulds
论文作者
论文摘要
关于生物运输网络的一个基本问题是网络开发或重组与其携带的流量之间的相互作用。我们使用Physarum Polycephalum，这是一种带有传输网络的真正粘液模具，可快速适应外部条件的改变，作为一个生物学模型，可以在这个问题中取得进展。我们探索突然限制在带环几何形状的腔室中的标本中的网络出现和重组。使用基于结构张量的图像分析方法，我们量化了网络的出现和方向性。我们表明，限制会引起网络的重组，并具有典型的$ 10^{4} $ s时标，在此期间，静脉沿着环正对齐。我们表明，这种网络演变依赖于本地动力学。
A fundamental question regarding biological transport networks is the interplay between the network development or reorganization and the flows it carries. We use Physarum polycephalum, a true slime mould with a transport network which adapts quickly to change of external conditions, as a biological model to make progress in this question. We explore the network emergence and reorganization in specimens suddenly confined in chambers with ring geometry. Using an image analysis method based on the structure tensor, we quantify the emergence and directionality of the network. We show that confinement induces a reorganization of the network with a typical $10^{4}$s timescale, during which veins align orthoradially along the ring. We show that this network evolution relies on local dynamics.
