Localization of metallothionein, heat shock protein (Hsp70), and superoxide dismutase expression in Hemidiaptomus roubaui (Copepoda, Crustacea) exposed to cadmium and heat stress
| Autor: | Roxane-M. Barthélémy, Martine Liberge |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Cadmium biology chemistry.chemical_element Anatomy Molecular biology Hsp70 Superoxide dismutase Enzyme chemistry Shock (circulatory) Heat shock protein Toxicity medicine biology.protein Metallothionein Animal Science and Zoology medicine.symptom Ecology Evolution Behavior and Systematics |
| Zdroj: | Canadian Journal of Zoology. 85:362-371 |
| ISSN: | 1480-3283 0008-4301 |
| DOI: | 10.1139/z07-009 |
| Popis: | Immunohistochemical methods were applied in the present study to investigate the expression of stress proteins such as metallothioneins (MT), which are metal-binding proteins, and heat shock proteins (Hsp70), as well as an antioxidant enzyme (superoxide dismutase, SOD), in the freshwater crustacean copepod Hemidiaptomus roubaui (Richard, 1888) exposed to cadmium or heat stress. The results show a tissue-specific distribution of MT-like protein after cadmium exposure in the brain and in the nerve cord. Cadmium stress did not provoke inducible Hsp70 or SOD expression. Unlike cadmium, heat stress induced the expression of Hsp70 and SOD in the shell glands, a structure involved in the reproductive function, and more particularly in the formation of the diapause egg envelope. MT expression is not induced in animals exposed to heat stress. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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