发表机构
Korea University; Max Planck Institute for Dynamics and Self-Organization（高丽大学; 马克斯·普朗克动力学与自组织研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究揭示手性滑行通过驱动丝状蓝藻间的主动缠结，产生收缩应力，促进网络收缩和密集聚集，从而驱动大规模集体自组织。
AI 中文摘要
丝状蓝藻在水生环境中形成大范围千米级的藻席，然而驱动其宏观自组织的物理机制仍然难以捉摸。在此，我们研究了准二维约束下丝状蓝藻聚集体的动力学。我们的观察揭示，手性滑行驱动单个丝状体之间的主动缠结，诱导网络快速收缩并形成密集堆积的聚集体。通过量化单接触力，我们证明这些机械相互作用产生显著的收缩应力。综合来看，我们的发现表明，手性滑行已演化为一种物理机制，以最大化丝状体间的相互作用并驱动大规模集体组织。
英文摘要
Filamentous cyanobacteria form extensive kilometer-scale mats in aquatic environments, yet the physical mechanisms driving their macroscopic self-organization remain elusive. Here, we investigate the dynamics of filamentous cyanobacterial assemblies within a quasi-two-dimensional confinement. Our observations reveal that chiral gliding drives active tangling between individual filaments, inducing rapid network contraction and the formation of densely packed aggregates. By quantifying single-contact forces, we demonstrate that these mechanical interactions generate significant contractile stresses. Together, our findings sug- gest that chiral gliding has evolved as a physical mechanism to maximize inter-filament interactions and drive large-scale collective organization.
