Journal
MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS
Volume 465, Issue 1-2, Pages 145-150Publisher
ELSEVIER
DOI: 10.1016/S1383-5718(99)00222-3
Keywords
Dreissena polymorpha; planorbarius corneus; micronucleus assay; haemocytes; PCP
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The frequency of micronuclei (MN) induced by pentachlorophenol (PCP) in haemocytes of zebra mussel, Dreissena polymorpha Pall. and great ramshorn snail, Planorbarius corneus L. was determined over a 14 days of exposure (sampling after 4, 7 and 14 days) under laboratory conditions, PCP doses for zebra mussel ranged from 10 to 150 mu g/l, and for ramshorn snail from 10 to 450 mu g/l. Micronuclei were detected after bisbenzimide fluorescent staining. Positive responses were observed in both species. The mean MN frequencies in treated mussels ranged between 0.69 and 7.50 parts per thousand, and between 2.07 and 13.80 parts per thousand in treated snails. The spontaneous MN levels in mussels averaged from 0.5 to 2.75 parts per thousand, and in snails from 1.55 to 2.00 parts per thousand. Our results suggest that haemolymph of both species represent an appropriate test tissue in environmental genotoxicity assessment. (C) 2000 Elsevier Science B.V. All rights reserved.
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