ULTRASTRUCTURE OF CELLS OF TREPONEMA PERTENUE OBTAINED FROM EXPERIMENTALLY INFECTED HAMSTERS

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Abstract
Cells of Treponema pertenue Gauthier obtained by elution from skin lesions and lymph nodes of experimentally infected hamsters were studied in the electron microscope by means of negative staining. The cells were also examined in thin secions of skin biopsies and lymph nodes. Fimbriae were observed on the negatively stained cells. Until now fimbriae have not been demonstrated on negatively stained cells of other species of Treponema, but at present only one straon of T. pertenue has been studied in our laboratory. Otherwise, the ultrastructure of the T. pertenue cells was found to be very similar, if not identical to, the substructural details observed in cells of T. pallidum and T. cuniculi. In thin sections of skin biopsies, treponemes were observed in the intercellular spaces between cells of the stratum basale and the stratum spinosum layers of the epidermis.

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