Bagatini M D, Vasconcelos T G, Laughinghouse H D, Martins A F, Tedesco S B
Laboratory of Plant Cytogenetics, Department of Biology, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Av. Roraima, 1000, Cidade Universitária, Santa Maria, RS, CEP 97105-900, Brazil.
Bull Environ Contam Toxicol. 2009 May;82(5):590-2. doi: 10.1007/s00128-009-9666-z. Epub 2009 Feb 18.
Hospital effluents are serious problems in developing countries like Brazil, and when not treated adequately, can cause mutagenic effects on live organisms. Biomonitors, like Allium cepa L., which is one of the most used plant species when monitoring effluent genotoxicity, have been used to alert the world population about environmental contamination and genotoxic chemical emissions. The Allium cepa test was used to evaluate the genotoxicity of a hospital effluent in Santa Maria, Rio Grande do Sul State, Brazil. During the study, chromosomal disruptions, anaphasic bridges, and micronuclei during telophase were observed, indicating environmental toxicity risk.
在巴西等发展中国家，医院污水是严重问题，若处理不当，会对生物产生诱变作用。生物监测器，如用于监测污水遗传毒性时最常用的植物物种之一洋葱（Allium cepa L.），已被用于提醒全球民众关注环境污染和遗传毒性化学物质排放。采用洋葱试验评估了巴西南里奥格兰德州圣玛丽亚市医院污水的遗传毒性。在研究过程中，观察到染色体断裂、后期桥以及末期的微核，表明存在环境毒性风险。
