Changing of the HSP70 Content in the Baikal Endemic Sponges Lubomirskiidae Under Conditions of Hyperthermia
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2015, Vol 11, Issue 4
Abstract
Baikal endemic sponges (Lubomirskiidae) make up the bulk of the benthos biomass of the lake. For the first time the changes in the content of HSP70 in response to elevated environment temperature were analyzed in three endemic species of Baikal sponges: [i]Baikalospongia bacillifera[/i] (Dybowski, 1880), [i]B. intermedia[/i] (Dybowski, 1880) and [i]Swartschewskia papyracea[/i] (Dybowski, 1880). Interspecific variability of constitutive HSP70 level was revealed for representatives of the three analyzed Lubomirskiidae species. After exposure at 13 °С for 3 and 7 days opposite changes were noted in the amount of HSP70. Under conditions of hyperthermia the protein level decrease at [i]Baikalospongia [/i]species, while at the [i]S. papyracea[/i] HSP70 content slightly increased. The differences in the mechanisms of stress adaptation probably affect the thermal resistance of the species, as well as are evidence supporting their specific status.
Authors and Affiliations
V. Itskovich, A. Shigarova, O. Glyzina, G. Borovskii
Keywords
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