Osmotaxis
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Osmotaxis
the ability of the growing organs of higher plants (roots, rhizoids), motile unicellular algae, protozoans, and gametes (including spermatozoids) to orient themselves or move in the direction of optimal osmotic pressure. The optimal osmotic pressure for a given species is not constant but varies with the chemical nature of the substrate.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.