Salt Transport Organelle in Artemia salenis (Brine Shrimp)

See allHide authors and affiliations

Science  28 Jan 1966:
Vol. 151, Issue 3709, pp. 470-471
DOI: 10.1126/science.151.3709.470


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.