Vaituzis Z, Doetsch R N
J Bacteriol. 1969 Oct;100(1):512-21. doi: 10.1128/jb.100.1.512-521.1969.
High-resolution electron microscopy of polarly flagellated bacteria revealed that their flagella originate at a circular, differentiated portion of the cytoplasmic membrane approximately 25 nm in diameter. The flagella also have discs attaching them to the cell wall. These attachment discs are extremely resistant to lytic damage and are firmly bound to the flagella. The cytoplasm beneath the flagellum contains a granulated basal body about 60 nm in diameter, and a specialized polar membrane. The existence of membrane-bound basal bodies is shown to be an artifact arising from adherence of cell wall and cytoplasmic membrane fragments to flagella in lysed preparations. Based on structures observed, a mechanism to explain bacterial flagellar movement is proposed. Flagella are considered to be anchored to the cell wall and activated by displacement of underlying cytoplasmic membrane to which they are also firmly attached. An explanation for the membrane displacement is given.
对极生鞭毛细菌进行的高分辨率电子显微镜观察显示，它们的鞭毛起源于细胞质膜上一个直径约25纳米的圆形、分化区域。鞭毛还有将它们附着到细胞壁上的盘状物。这些附着盘对裂解损伤具有极强的抵抗力，并牢固地附着在鞭毛上。鞭毛下方的细胞质含有一个直径约60纳米的颗粒状基体和一个特殊的极膜。膜结合基体的存在被证明是裂解制剂中细胞壁和细胞质膜碎片附着在鞭毛上而产生的假象。基于观察到的结构，提出了一种解释细菌鞭毛运动的机制。鞭毛被认为锚定在细胞壁上，并通过与其也牢固附着的下层细胞质膜的位移而被激活。还给出了膜位移的一种解释。
