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[Ultrastructure of Salmonella typhimurium forms with unbalanced growth induced by lithium chloride].

The action of 1.0 and 1.5 M LiCl on S. typhimurium induces the appearance of unbalanced growth forms capable of growing and multiplication, when subcultured in a medium with this preparation. In this culture the prevalence of cells differing in their structure from the initial Salmonella cells and from stable L-form cultures is observed. Cells characteristic of the initial culture and cells resembling the L-forms occur in lesser numbers. LiCl seems to affect peptidoglycan and the cytoplasmic membrane, which brings about disturbances in the permeability of the surface structures of the cell.