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Dual Cellular Supporters: Multi-Layer Glial Wrapping and the Penetrative Matrix Specialized in Deep-Sea Hydrothermal Vent Endemic Scale-Worms.
Abstract Hydrothermal vent organisms undergo extreme environments that may require unique innovations. The present study reports a distinct case of cellular supportive systems in the nervous systems of a scale-worm, Branchinotogluma japonica, endemic to deep-sea hydrothermal vents. We found two organizations in the tissues of these animals. First, multi-layers of glia ensheath the ventral cell bodies of the brain and ventral nerve cord, in a manner similar to that of myelin or lamellar ensheathments. Second, matrices of numerous penetrative fibers, or tonofilaments, composed of bundles of ca. 20-nm fibers, are dir...
Source: The Biological Bulletin - June 1, 2015 Category: Biology Authors: Shigeno S, Tame A, Uematsu K, Miura T, Tsuchida S, Fujikura K Tags: Biol Bull Source Type: research