title: [Molecular nature of the cryotolerant lake amphipod Gammarus lacustris].
abstract: Gammarus lacustris were studied in an attempt to identify the mechanism of subzero temperature adaptation, which enables this species to survive in winter under natural conditions. G. lacustris hemolymph contained a high concentration of glucose (42.4 mg/ml of hemolymph). In addition, galactose, mannose, xylose, zellobiose, and unidentifiable disaccharides and oligosaccharides were found, though at much lower concentrations (0.94-3.26 mg/ml). The glycerol concentration in the gammarus hemolymph was about 5-20 times as low as in many other animals surviving at subzero temperatures (16.2 mg/ml). Other sugars and polyhydric alcohols were discovered only in traces amounts in the hemolymph. Antifreeze proteins were not found in the gammarus.
authors.affiliation: Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, 142290 Russia.
authors.forename: M V
authors.initials: MV
authors.lastname: Karanova
authors.forename: E N
authors.initials: EN
authors.lastname: Gakhova
mesh_terms: D000222:Adaptation, Physiological; D000438:Alcohols / Q000097:blood; D000818:Animals; D002241:Carbohydrates / Q000097:blood; D003445:Crustacea / Q000502:physiology*; D005615:Freezing; D006458:Hemolymph / Q000737:chemistry
chemical_list: D000438:Alcohols; D002241:Carbohydrates