Phagocytic Activity of Accessory Cells in the Gonad of the Sea Urchin <Emphasis Type="Italic">Strongylocentrotus nudus</Emphasis> |
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| Authors: | A V Kalachev O V Yurchenko A A Reunov |
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| Institution: | (1) Institute of Marine Biology, Far East Division, Russian Academy of Sciences, Vladivostok, 690041, Russia |
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| Abstract: | The ultrastructural mechanism of postspawning sperm resorption in the testes of the sea urchin Strongylocentrotus nudus is described. Two types of phagosomes (containing sperm and containing residual bodies) are formed in the cytoplasm of nutritive phagocytes. The phagosomes fuse with electron-dense globules, and their contents are gradually destroyed. Afterward, phagosomes are transformed into electron-transparent vacuoles, which are finally compressed by the surrounding cytoplasm. |
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| Keywords: | sea urchin accessory cells nutritive phagocytes testes |
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