The Nucleus of Intestinal Cells of the Bacterivore Nematode Caenorhabditis elegans as a Sensitive Sensor of Environmental Pollutants.

The Nucleus of Intestinal Cells of the Bacterivore Nematode Caenorhabditis elegans as a Sensitive Sensor of Environmental Pollutants.
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食菌线虫秀丽隐杆线虫肠细胞核作为环境污染物的敏感传感器

DOI:
10.1007/978-1-0716-0763-3_15
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发表时间:
2020
影响因子:
--
通讯作者:
von Mikecz A
von Mikecz A
中科院分区:
--
文献类型:
--
作者:
Piechulek A;Berwanger L;Hemmerich P;von Mikecz A

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普遍的环境挑战是气候变化、生物多样性危机和全球范围的环境污染。我们确定细胞核作为一个敏感的传感器的生物效应的污染物,如汞和纳米粒子。由于污染物进入生物体的主要途径是摄入,我们已经开发了一个测试系统,使用单肠细胞的线虫。甲基转移酶原纤蛋白(FIB-1::GFP)的报告蠕虫细胞核的显微镜观察显示,核染色模式是特定的污染物,如二氧化硅纳米颗粒,散装二氧化硅颗粒,银纳米颗粒,离子硝酸银,和无机汞(氯化汞)。虽然潜在的分子机制需要进一步研究,但在微量滴定板上的液体培养物中培养报告蠕虫现在能够从环境中筛选更多污染物和样品,例如,中尺度分析AsC。尽管线虫在实验室和生态系统中过着双重生活,但核结构和功能的改变同样可以解释环境污染物如何降低野生蠕虫的适应性,从而对生物多样性产生负面影响。
Prevalent environmental challenges are climate change, the biodiversity crisis, and the global scale of environmental pollution. We identified the cell nucleus as a sensitive sensor for bio-effects of pollutants such as mercury and nanoparticles. As a major route of pollutant uptake into organisms is ingestion, we have developed a test system that uses single intestinal cells of the nematode roundwormCaenorhabditis elegans. Microscopic observation of the cell nucleus in reporter worms for the methyltransferase fibrillarin (FIB-1::GFP) revealed nuclear staining patterns that are specific for pollutants such as silica nanoparticles, BULK silica particles, silver nanoparticles, ionic AgNO3, and inorganic mercury (HgCl2). While the underlying molecular mechanisms need further investigation, cultivation of the reporter worms in liquid culture on microtiter plates now enables cost-effective screening of more pollutants and samples from the environment,e.g.,mesocosm analyses. AsC. elegansleads a dual life in the lab and in ecosystems, alteration of nuclear structure and function may likewise explain how environmental pollutants reduce the fitness of wild worms and thus may negatively affect biodiversity.
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发表时间: 2015-02-17
影响因子: 11.4
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DOI: 10.7717/peerj.754/fig-4
发表时间: 2015
期刊: PeerJ
影响因子: 2.7
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通讯作者: A. von Mikecz
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DOI: --
发表时间: 2013
期刊: Biometals
影响因子: 3.5
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DOI: 10.1007/978-1-4939-1680-1_15
发表时间: 2015
影响因子: --
作者:
Arnhold F;Scharf A;von Mikecz A
通讯作者: von Mikecz A