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KMID : 0381919940240030046
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Korean Journal of Microscopy
1994 Volume.24 No. 3 p.46 ~ p.54
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Ultrastructure of Cymbidium Leaf Tissue Systemically Infected with Odontoglossum Ringspot Virus
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Ryu Ki-Hyun
Kim Woo-Kab
Park Won-Mok
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Abstract
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In ultrathin section of the tissue of odontoglossum ringspot virus (ORSV)-infected Cymbidium goeringii Reichenbach, ORSV particles appeared as bundles of irregular aggregates of various length which were called stacked plates or rounded plates. Virus particles were found in the cytoplasm in electron clear zones and they also found between cell wall and plasma membrane. They mainly clustered in parallel aggregates and sometimes oriented randomly. The X-bodies and paramural bodies were observed near the cell membrane and these contained vacuole-like cavities. The cell wall of infected tissue expanded largely. Some chloroplast in ORSV infected cell was irregular. No virus particle was present in mitochondria, nuclei, vacuoles, vesicles or other organelles. The plasmodesmata slightly enlarged, and virus-associated granules were present around it.
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