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王大勇

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期刊论文

The phenotypic and behavioral defects can be transferred from zinc-exposed nematodes to their progeny

王大勇Dayong Wang ab Lulu Shen a Yang Wang a

Environmental Toxicology and Pharmacology 24(2007)223-230,-0001,():

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摘要/描述

In despite of the essential functions of zinc as trace element for humans, toxic effects will be pronounced while organisms are exposed to high levels of zinc. However, whether the multiple biological toxicities caused by zinc exposure could be transferred to progeny is still largely unknown. In the present study, we explored the model organism, Caenorhabditis elegans, to analyze the multiple toxicities from zinc exposure and their possibly transferable properties. Our results indicate that the zinc exposure could result in multiple biological defects by affecting the endpoints of life span, development, reproduction, locomotion behavior and chemotaxis plasticity. Zinc exposure could specially cause the appearance of uncoordinated (UNC) animals. In addition, Zn exposure could result in the stress responses in most of the tissues in exposed nematodes. Moreover, these phenotypic and behavioral toxicities could be transferred from zinc-exposed nematodes to their progeny. The fold changes of hsp16-2-gfp expression in embryos of progeny animals suggest that the zinc toxicity might be deposited in eggs of nematodes. We summarized these defects into two groups according to their transferable properties. Therefore, our data suggest that zinc exposure can result in multiple toxicities and these multiple biological defects can be largely transferred to progeny in C. elegans.

【免责声明】以下全部内容由[王大勇]上传于[2010年02月05日 09时59分36秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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