Abstract
Evaluation of metallothionein response in Lymnaea stagnalis pond snail exposured to trace metals and thiocarbamate fungicide
Highlights
Freshwater snails are an important species in the aquatic ecosystems due to their rapid grazing rates, sensitivity to different kinds of pollution [3, 5, 17, 24, 28]
Due to a lack of information concerning the properties of the MT in the aquatic snails, the goal of this study was to evaluate the peculiarities of the metal-binding response of the MT in the freshwater pulmonate L. stagnalis mollusk pond snail
Were divided in five groups, control group (C), and groups subjected to waterborne metals copper (Cu2+, 10 μg·L-1 correspondent to 0.156 μM), zinc (Zn2+, 130 μg·L-1 corres pondent to 2.0 μM), cadmium (Cd2+, 15 μg·L–1 correspondent to 0.134 μM) and Tattoo fungicide (commercial formulation containing 45% of propamocarb-HCl (propyl-3-(di methylamino) propylcarbamate and 55% of mancozeb, or Zn, Mn ethylenebis(dithiocarba mate) [-SCSNH(CH2)2NHCSSMn-]n(Zn)m(Mn)], 91 μg L−1)
Summary
Freshwater snails are an important species in the aquatic ecosystems due to their rapid grazing rates, sensitivity to different kinds of pollution [3, 5, 17, 24, 28]. This metal of the anthropogenic origin can replace physiological metals zinc (Zn) and copper (Cu) in metal-thiolate clusters of the MT. It is one of the most effective inducers of MT expression in different aquatic organisms [1]. Dallinger and colleagues [5, 18, 24, 27] They demonstrated especially high variability of the molecular forms induced by the exposures to cadmium and copper. A vulnerability of metal binding function despite high total level of protein is expected from the particular metal binding/release dynamics intrinsic to these proteins [35]
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