Vysotskiĭ V V, Androsov V V
Zh Mikrobiol Epidemiol Immunobiol. 1976(12):32-7.
The authors describe the ultrastructure of cells composing the intact population of several S. typhimurium and E. coli strains. Four morphological cell variants were revealed in the population of three salmonella strains. Cells of the first variant had the structure characteristic of all the Gram negative bacteria, and smooth contour surface structures, among which the membrane of the cell wall, its rigid component and the cytoplasmic membrane were differentiated readily. The second variant differed from the first one by the presence of deep individual folds of the surface structures invaginating into the cell. In comparison with the former two types of cells, the two latter variants were characterized by a lesser size, dense cytoplasm and a marked tortuosity of the cell contours in which only the wall components could be revealed. It is supposed that the fourth variant had a structure characteristic of the R-form of cells, the first one--of the S-form, and the second and third variants could be referred to the transitional S leads to R-forms. Increased density of the cytoplasm and rugose character of the surface structures could be attributed to increased dehydration of the cytoplasm of the dissociating cells. No marked polymorphism was revealed in the E. coli cells.
作者描述了构成几种鼠伤寒沙门氏菌和大肠杆菌菌株完整菌群的细胞超微结构。在三种沙门氏菌菌株的菌群中发现了四种形态学细胞变体。第一种变体的细胞具有所有革兰氏阴性菌的结构特征，表面结构轮廓光滑，其中细胞壁膜、其刚性成分和细胞质膜易于区分。第二种变体与第一种变体的不同之处在于存在深入细胞内部的表面结构的深的单个褶皱。与前两种细胞类型相比，后两种变体的特征是尺寸较小、细胞质致密以及细胞轮廓明显曲折，其中只能显示细胞壁成分。据推测，第四种变体具有细胞R型的结构特征，第一种具有S型的结构特征，第二种和第三种变体可归为从S型向R型转变的过渡型。细胞质密度增加和表面结构的皱纹特征可归因于解离细胞细胞质脱水增加。大肠杆菌细胞中未发现明显的多态性。
