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首页> 外文期刊>Environmental toxicology and chemistry >IMPACT OF ATRAZINE ON ANEUPLOIDY IN PACIFIC OYSTERS, CRASSOSTREA GIGAS
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IMPACT OF ATRAZINE ON ANEUPLOIDY IN PACIFIC OYSTERS, CRASSOSTREA GIGAS

机译：Atrazine对太平洋牡蛎牡蛎无核化的影响

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摘要

Aneuploidy has previously been described and studied in the Pacific oyster, Crasxostrea gigas, and has been shown to be negatively correlated with growth. The present study investigated the effect of atrazine on the level of aneuploidy in this species. Crassostrea gigas adults and juveniles were subjected to different concentrations of atrazine representing a peak value found in a polluted environment (46.5 nM) and a value 10 times higher (465 nM). Although atrazine did not show any effect on the oyster mortality, significant differences in aneuploidy level were observed between the different treatments (9% for the control, 16% for 46.5 nM and 20% for 465 nM atrazine). Moreover, the same levels of aneuploidy were observed at adult and juvenile stages. This is the first reported evidence for an environmental effect on aneuploidy in C. gigas. These results will be useful for the oyster aquaculture industry and management of resources. The lowest atrazine level in the current study represents realistic potential exposure, and the results suggest that studies should be made on other aquatic species at risk of exposure to atrazine in the wild. This widely used compound may be an important factor causing damage to genetic material.
机译：非整倍体以前已在太平洋牡蛎Crasxostrea gigas中进行了描述和研究，并已显示与生长呈负相关。本研究调查了r去津对该物种非整倍性水平的影响。 Crassostrea gigas成年和少年受不同浓度的at去津处理，这表示在污染环境中发现的峰值（46.5 nM）和高出10倍的值（465 nM）。尽管at去津对牡蛎死亡率没有任何影响，但在不同处理之间观察到非整倍体水平的显着差异（对照组为9％，阿特拉津为46.5 nM为16％，465 nM为20％）。此外，在成年和少年阶段观察到相同水平的非整倍性。这是第一个报道的环境对巨嘴兽非整倍性有环境影响的证据。这些结果将对牡蛎养殖业和资源管理有用。当前研究中最低的阿特拉津水平代表现实的潜在暴露，结果表明应该对其他有野生暴露风险的其他水生物种进行研究。这种广泛使用的化合物可能是导致遗传物质受损的重要因素。

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