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Echinobase
ECB-ART-39066
Zygote 2004 Feb 01;121:71-3. doi: 10.1017/s0967199403002429.
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Selective resorption in nutritive phagocytes of the sea urchin Anthocidaris crassispina.

Reunov AA , Kalachev AV , Yurchenko OV , Au DW .


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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 approximately 0.56% occurrence, suggesting that heterophagosomes have a selective resorption ability in nutritive phagocytes.

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Genes referenced: LOC100887844