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Science 28 January 1966:
Vol. 151. no. 3709, pp. 470 - 471
DOI: 10.1126/science.151.3709.470
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Articles

Salt Transport Organelle in Artemia salenis (Brine Shrimp)

Eugene Copeland 1

1 Biology Department, Tulane University, New Orleans, Louisiana and Marine Biological Laboratory, Woods Hole, Massachusetts

The branchiae of Artemia adapted to triple-strength sea water (105 per mil salinity) were studied with the electron microscope. The epithelial lining of the metepipodite segment possesses organelles composed of stacks of disc-shaped mitochondria interlaced with flattened extensions of a canalicular system that in turn communicates with the plasma-bound surface of the cells. The distance between the canalicular and mitochondrial membranes is small and quite constant. The marked similarity to "mitochondrial pumps" in the anal papillae of tosquito larvae suggests that the organelle is concerned with salt transport.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)