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Die Aufnahme partikulärer Nahrung beiReniera sp. (Porifera)
The uptake of particulate food inReniera sp. (Porifera)
Helgoländer Meeresuntersuchungen volume 39, pages 263–272 (1985)
Abstract
The choanocyte chambers of the marine spongeReniera sp. protrude with their curved outer surface free into the incurrent canals. The water is sucked into the chambers by cavities between the choanocytes. Particles up to 1 µm in diameter may enter the chambers with the water current. These particles are trapped on the outer surface of the choanocyte collars and are ingested by the choanocytes and processes of the pinacocyte epithelium of the incurrent canal system, which project into the chambers. Bigger particles are retained in the incurrent canals mainly on the outer surface of the choanocyte chambers. They are ingested by pinacocytes of the canal wall and transported to cells of the mesenchyme. The present investigation shows the great importance of the pinacocyte epithelium of the incurrent canal system for suspension feeding inReniera sp.
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Langenbruch, PF. Die Aufnahme partikulärer Nahrung beiReniera sp. (Porifera). Helgolander Meeresunters 39, 263–272 (1985). https://doi.org/10.1007/BF01992774
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DOI: https://doi.org/10.1007/BF01992774