Heat Shock Proteins in the Mechanisms of Stress Adaptation in Baikalian Amphipoda and Palaearctic Gammarus lacustris Sars: I. HSP70 family
Z. M. Shatilina, T. P. Pobezhimova, O. I. Grabel'nykh, D. S. Bedulina, M. V. Protopopova, V. V. Pavlichenko, M. A. Timofeev
Keywords: Stress resistivity, heat shock proteins (HSP), amphipoda, Baikal, endemics
Pages: 57-67
Abstract
Participation of the proteins of HSP70 family in the mechanisms of stress adaptation under the action of thermal and toxic stress in Baikalian endemic and palaearctic organisms was investigated. Four endemic species of Lake Baikal Gmelinoides fasciatus (Stebb.), Eulimnogammarus cyaneus (Dyb.), E. vittatus (Dyb.), Ommatogammarus flavus (Dyb.) were compared with the representative of palaearctic fauna Gammarus lacustris Sars. The character of synthesis of the heat shock proteins of the HSP70 family under the action of thermal (exposure at a temperature of 20, 25, 30 °С) and toxic (exposure in CdCl2 solutions with the concentrations 50, 10, 5, 0,5 and 0,05 mg/l) stress was determined. It was shown that all the species under investigation exhibit a common trend to increase the HSP70 proteins; some species-specific features of the character of synthesis of the protein under investigation were observed. It was concluded that HSP70 participate in the mechanisms of thermal and toxic resistivity in the investigated amphipoda species.
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