Heat shock proteins in the mechanisms of stress adaptation in Baikal amphipods and palearctic <Emphasis Type="Italic">Gammarus lacustris</Emphasis> Sars. I. HSP70 family |
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Authors: | Zh M Shatilina T P Pobezhimova O I Grabel’nykh D S Bedulina M V Protopopova V V Pavlichenko M A Timofeev |
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Institution: | (1) Zoological Institute Russian Academy of Sciences, University embankment 1, Saint-Petersburg, 199034, Russia |
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Abstract: | The participation of HSP70 family proteins in the mechanisms of stress adaptation under thermal and toxic stress in Baikal
endemic and palearctic organisms was investigated. The four Lake Baikal endemic species Gmelinoides fasciatus (Stebb.), Eulimnogammarus cyaneus (Dyb.), E. vittatus (Dyb.), Ommatogammarus fl avus (Dyb.) were compared with the palearctic fauna representative Gammarus lacustris Sars. The type of synthesis of HSP70 family heat shock proteins under thermal (exposure at a temperature of 20, 25, and 30°C)
and toxic (exposure in CdCl2 solutions with the concentrations 50, 10, 5, 0.5, and 0.05 mg/l) stress was determined. All species under investigation were
shown to have a common trend towards HSP70 content increase; therewith some species-specific characteristics of the type of
synthesis of the protein under investigation were observed. The conclusion has been made on HSP70 participation in the mechanisms
of thermal and toxic resistance in the studied amphipod species. |
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