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KMID : 0381919890190020017
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Korean Journal of Microscopy
1989 Volume.19 No. 2 p.17 ~ p.26
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Electron Microscopic Studies on the Morphology and Ultrastructures in Campylobacter jejuni treated with Physico-chemical Disinfectants
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Yun Man-Seok
Oh Hak-Sik
Kim Chi-Kyung
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Abstract
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The cells of Campylobacter jejuni treated with physical or chemical disinfection agents were comparatively examined by scanning and transmission electron microscopies for their morphological features and internal ultrastructures. The normal cells of C. jejuni, showed typical spiral rod shapes. The ribosomes, nucleoids, and other cellular constituents were observed to be distributed evenly throughout the cytoplasm. The cells treated with heat or UV-light were changed to spherical or irregular shapes and their cell envelopes were destroyed to form ghost cells by liberating their cytoplasmic components. The cells treated with chlorine or monochloramine were also changed into irregular round shapes. The chlorinated cells showed very rough surface structures with many blob-like protrusions, while the surface of the monochloramine-treated cells appeared to be relatively smooth.
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