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首页> 外文期刊>Canadian Journal of Zoology >Localization of metallothionein, heat shock protein (Hsp70), and superoxide dismutase expression in Hemidiaptomus roubaui (Copepoda, Crustacea) exposed to cadmium and heat stress
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Localization of metallothionein, heat shock protein (Hsp70), and superoxide dismutase expression in Hemidiaptomus roubaui (Copepoda, Crustacea) exposed to cadmium and heat stress

机译：暴露于镉和热胁迫下的罗氏Hemidiaptomus roubaui（Copepoda，甲壳纲）中金属硫蛋白，热休克蛋白（Hsp70）和超氧化物歧化酶表达的定位

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摘要

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 iHemidiaptomus 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.
机译：本研究采用免疫组织化学方法研究了应激蛋白的表达，例如金属结合蛋白金属硫蛋白（MT）和热休克蛋白（Hsp70）以及抗氧化酶（超氧化物歧化酶，SOD）的表达，在淡水甲壳类co足类iHemidiaptomus roubaui（Richard，1888）中暴露于镉或热胁迫下。结果表明，镉样暴露在大脑和神经索中后，MT样蛋白的组织特异性分布。镉胁迫不会引起可诱导的Hsp70或SOD表达。与镉不同，热应激诱导了壳腺中Hsp70和SOD的表达，这种结构涉及生殖功能，尤其是滞育卵壳的形成。暴露于热应激的动物不会诱导MT表达。

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