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Morphology of Halprowia (Chlamydia) isolated in Reiter's syndrome]
Authors:A A Shatkin  V L Popov  N I Shcherbakova
Abstract:Morphology and ultrastructure of Halprowia arthritidis, strain SR-1 (HSR), isolated from the synovial fluid of a patient with Reiter's syndrome, was studied in the membranes of the yolk sacs of the developing chick embryos and the L-cell culture. In acridine orange staining for light and fluorescent microscopy there was revealed intracellular cytoplasmic inclusions containing HSR structures at various stages of its reproduction characteristic of halprowia (chlamydia). The direct immunofluorescent method demonstrated the presence of a characteristic HSR antigen not only in the developed inclusions, but also at the early stages of infection, when the morphological HSR structures could not be found by light microscopy. The ultrastructure of the HSR inclusions and forms in the cycle of development (of the initial and elementary bodies) of the SR-1 strain was typical of other halprowia. A peculiar structure of a complex of cell wall and cytoplasmic membrane of the elementary body was described. Taking into consideration the biological characteristics of HSR revealed earlier it can be considered to be a typical representative of Halprowiales s. Chlamydiales. The data obtained on other halprowia, pointing out the fact that criteria of compactness and diffuseness of inclusions, the presence of absence of glycogen in the inclusions could not serve as taxonomic signs in classification of halrpowia, were confirmed on a model of the SR-1 studied.
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