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首页> 外文期刊>Comparative biochemistry and physiology. Toxicology & pharmacology: CBP >Metallothionein induction and heavy metal accumulation in white shrimp Litopenaeus vannamei exposed to cadmium and zinc
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Metallothionein induction and heavy metal accumulation in white shrimp Litopenaeus vannamei exposed to cadmium and zinc

机译：暴露于镉和锌的南美白对虾对虾中金属硫蛋白的诱导和重金属累积

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摘要

Metallothioneins (MTs) have been widely considered for their potential use as specific biomarkers to reflect the existence of heavy metal pollution, because their induction has been observed to be obviously elevated after heavy metal exposure in a large number organism studied. However, relatively fewer efforts have been made in MT-related studies of prawn species, such as the white shrimp Litopenaeus vannamei, a globally important aquaculture species. With the results from gel filtration chromatography, we demonstrate the existence of MTs or MT-like proteins in L.vannamei. We further studied the relationship between MT induction and metals accumulation after long-term exposure to the heavy metals Cd and Zn. From our results, it is very clear that the response of L. vannamei to Cd differs from that to Zn, and this should be considered when using MTs in field applications to monitor metals contamination. (c) 2005 Elsevier Inc. All rights reserved.
机译：金属硫蛋白（MTs）已被广泛考虑作为潜在的特定生物标记物来反映重金属污染的存在，因为在大量研究过的重金属暴露后，金属硫蛋白的诱导作用明显增强。然而，在与MT相关的对​​虾物种研究中，诸如白虾对虾凡纳滨对虾（全球对虾重要的水产养殖物种）的研究相对较少。通过凝胶过滤色谱的结果，我们证明了南美白对虾中MTs或MT样蛋白的存在。我们进一步研究了长期暴露于重金属Cd和Zn后MT感应与金属积累之间的关系。根据我们的结果，很明显南美白对虾对Cd的响应与对锌的响应不同，因此在现场应用中使用MT监测金属污染时应考虑这一点。 （c）2005 Elsevier Inc.保留所有权利。

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