Salinity modulates thermotolerance, energy metabolism and stress response in amphipods Gammarus lacustris.

ABSTRACT: Temperature and salinity are important abiotic factors for aquatic invertebrates. We investigated the influence of different salinity regimes on thermotolerance, energy metabolism and cellular stress defense mechanisms in amphipods Gammarus lacustris Sars from two populations. We exposed amphipods to different thermal scenarios and determined their survival as well as activity of major antioxidant enzymes (peroxidase, catalase, glutathione S-transferase) and parameters of energy metabolism (content of glucose, glycogen, ATP, ADP, AMP and lactate). Amphipods from a freshwater population were more sensitive to the thermal challenge, showing higher mortality during acute and gradual temperature change compared to their counterparts from a saline lake. A more thermotolerant population f

SUBMITTER: Vereshchagina KP 

PROVIDER: S-EPMC5119240 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature