Document Detail

Duckweed Lemna minor as a tool for testing toxicity and genotoxicity of surface waters.
MedLine Citation:
PMID:  20638723     Owner:  NLM     Status:  In-Process    
In this investigation growth parameters and certain endpoints (pigment content, peroxidase activity, lipid peroxidation and alkaline comet assay) were used to detect the toxic and genotoxic effects of surface water samples on duckweed plants. The surface waters of different origin and pollutant burdens were collected monthly over a 3-month monitoring period at three sampling sites along the river Sava and its confluents (Croatia). Physicochemical characterization of the water samples included measurements of conductivity, chemical and biological oxygen demand, levels of total suspended solids, nitrate, nitrite, ammonium, Kjeldahl nitrogen and orthophosphate. Surface water samples collected from three stations caused reduction of duckweed growth rates, chlorophylls and carotenoid contents and peroxidase activity. In contrast, damage to membrane lipids (estimated by malondialdehyde content) and especially to DNA (estimated by tail extent moment) markedly increased in duckweed exposed to industrial wastewater samples. The results from the study indicate the ability of selected biomarkers to predict the phyto- and genotoxic effects of complex water mixtures on living organisms as well as the relevance of duckweed as a sensitive indicator of water quality.
S Radić; D Stipaničev; P Cvjetko; M Marijanović Rajčić; S Sirac; B Pevalek-Kozlina; M Pavlica
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-17
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  74     ISSN:  1090-2414     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  182-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Department of Botany, Faculty of Science, University of Zagreb, Rooseveltov trg 6, Zagreb, Croatia.
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