The Particularities of Nonspecific Stress Resistance Mechanism Activation in Baikalian Endemic Amphipod Gmelinoides fasciatus (Stebb, 1899) under Thermal Stress

Vereshchagina, K.P.; Lubyaga, Y.A.; Axenov-Gribanov, D.V.; Gurkov, A.N.; Kondratieva, E.S.; Shchapova, E.P.; Prokosov, S.O.; Shatilina, Z.M.

Journal of Stress Physiology & Biochemistry, 2014, Vol. 10, No. 4, pp. 131-138 ISSN 1997-0838
Original Text Copyright (cc) 2014 by Vereshchagina, Lubyaga, Axenov-Gribanov, Gurkov, Kondratieva, Shchapova, Prokosov and Shatilina

ORIGINAL ARTICLE

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QueryDate : 2016-12-24
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The Particularities of Nonspecific Stress Resistance Mechanism Activation in Baikalian Endemic Amphipod Gmelinoides fasciatus (Stebb, 1899) under Thermal Stress

Vereshchagina K.P.^1,2*, Lubyaga Y.A.^1,2, Axenov-Gribanov D.V.^1,2, Gurkov A.N.^1,2, Kondratieva E.S.^1,2, Shchapova E.P.^1,2, Prokosov S.O.^1,2, Shatilina Z.M.²

¹ Irkutsk State University. 664003 Irkutsk, K. Marx str., 1, Russia
² Institute of Biology at Irkutsk State University. 664003 Irkutsk, Lenin str., 3, Russia

*E-Mail: k.p.vereshagina@gmail.com

Received November 24, 2014

The aim of the current study was to determine the characteristics of the stress response in endemic species Gmelinoides fasciatus (Stebb., 1899) in comparison with other Baikal amphipods under short term thermal stress. It were shown the changes in activity of antioxidant enzymes, and lactate dehydrogenase correlated with content of lactate under the influence of gradual temperature increase.
While the changes of cellular stress - markers content or their activity in other Baikal species occurred beyond the thermal preference zone, the cellular stress - markers content or their activity in G. fasciatus associated with entrance into the thermal preference zone. Thus we concluded that the relict endemic species G. fasciatus has a different stress resistance mechanism to elevated temperature than other Baikal amphipods species.

Key words: Amphipods, Baikal, stress, antioxidant enzymes, lactatdehydrogenase, lactate