The junctional pore complex and the propulsion of bacterial cells.
The junctional pore complex and the propulsion of bacterial cells.
复制标题
连接孔复合体和细菌细胞的推进。
DOI：
10.1159/000077871
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Oster,George
中科院分区：
文献类型：
--
作者：
Wolgemuth,CharlesW;Oster,George
滑动运动性被定义为细菌在与表面接触时沿其长轴方向的移位。这一定义未指明任何机制，事实上，似乎有一个以上的生理系统的基础上相同类型的运动。目前，在粘细菌中发现了两种不同的机制。一种需要IV型皮利的伸展、附着和收缩来拉动细胞向前。最近的实验证据表明，滑行运动的第二种机制涉及从一种称为“连接孔复合体”的细胞器中挤出粘液。本文综述了蓝藻和粘细菌的粘液挤出和连接孔复合体在滑动运动中的作用。
Gliding motility is defined as translocation in the direction of the long axis of the bacterium while in contact with a surface. This definition leaves unspecified any mechanism and, indeed, it appears that there is more than one physiological system underlying the same type of motion. Currently, two distinct mechanisms have been discovered in myxobacteria. One requires the extension, attachment, and retraction of type IV pili to pull the cell forwards. Recent experimental evidence suggests that a second mechanism for gliding motility involves the extrusion of slime from an organelle called the ‘junctional pore complex’. This review discusses the role of slime extrusion and the junctional pore complex in the gliding motility of both cyanobacteria and myxobacteria.