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Testing the genotoxicity of coking wastewater using Vicia faba and Hordeum vulgare bioassays.

Abstract：

:The coking wastewater induces severe environmental problems in China, however, its toxicity has not been well known. In the present study, the genotoxicity of coking wastewater was studied using Vicia faba and Hordeum vulgare root tip cytogenetic bioassays. Results show that the tested coking wastewater decreased the mitotic index, and significantly enhanced the frequencies of micronucleus, sister chromatid exchange and pycnotic cell in concentration-dependent manners. Exposure to the same concentration wastewater, the increasing ratios of above genetic injuries were higher in V. faba than that in H. vulgare. The results imply that coking wastewater is a genotoxic agent in plant cells and exposure to the wastewater in environment may pose a potential genotoxic risk to organisms. It also suggests that both bioassays can be used for testing the genotoxicity of coking wastewater, but the V. faba assay is more sensitive than H. vulgare assay during the process.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Dong Y,Zhang J

doi

10.1016/j.ecoenv.2009.12.026

subject

Has Abstract

pub_date

2010-07-01 00:00:00

pages

944-8

issue

5

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(09)00303-0

journal_volume

73

pub_type

杂志文章

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