Selective resorption in nutritive phagocytes of the sea urchin Anthocidaris crassispina

Arkadiy A. Reunov, Alexander V. Kalachev, Olga V. Yurchenko, Doris W. T. Au

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Abstract

    Phagocytic resorption during spermatogenesis was studied in the sea urchin Anthocidaris crassispina. Nutritive phagocytes in gonad absorbed both waste sperm cells and residual bodies discarded from maturing spermatids, and these materials were subsequently compartmented in heterophagosomes. Based on 180 heterophagosomes examined by transmission electron microscopy, over 99% of heterophagosomes contained either residual bodies or sperm cells only. Simultaneous resorption of sperm cells and residual bodies in a heterophagosome was uncommon, with only ∼0.56% occurrence, suggesting that heterophagosomes have a selective resorption ability in nutritive phagocytes.
    Original languageEnglish
    Pages (from-to)71-73
    JournalZygote
    Volume12
    Issue number1
    DOIs
    Publication statusPublished - Feb 2004

    Research Keywords

    • Residual body
    • Resorption
    • Sea urchin
    • Sperm
    • Ultrastructure

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