Abstract
The intracellular disc-like lamellar structure (DLS) earlier detected in the motility apparatus of Halobacterum salinarum and details of insertion of proximal ends of flagella into DLS were studied using electron microscopy. Analysis of ultrathin sections obtained after fixation with potassium permanganate established that DLS, absent in bacteria, contains a membrane-like structure. Electron microscopic studies of cell ghosts obtained by mild cytolysis in low-NaCl solutions shed additional light as on details of DLS structure and so on localization of flagellar proximal ends. Structural organization of the motility apparatus of bacteria and archaebacteria as representatives of two distinct taxonomic domains is discussed.
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