Ecotoxicological assessment of industrial effluent using duckweed (Lemna minor L.) as a test organism

This study aimed at assessing the toxic effects of industrial effluents using duckweed (Lemna minor L.) plants as a test system. Growth inhibition test according to standardized protocol (ISO 20079) was performed. The suitability of the Comet assay (indicates DNA damage) and certain parameters such...

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Bibliographic Details
Published in:Ecotoxicology (London) 2010, Vol.19 (1), p.216-222
Main Authors: Radić, Sandra, Stipaničev, Draženka, Cvjetko, Petra, Mikelić, Ivanka Lovrenčić, Rajčić, Marija Marijanović, Širac, Siniša, Pevalek-Kozlina, Branka, Pavlica, Mirjana
Format: Article
Language:English
Subjects:
Analysis of Variance
Aquatic plants
Araceae - drug effects
Araceae - growth & development
Assessments
Bioassays
Biomass
Comet Assay
Croatia
Deoxyribonucleic acid
DNA
DNA damage
DNA Damage - drug effects
Duckweed
Earth and Environmental Science
Ecology
Ecotoxicology
Effluents
Environment
Environmental Management
Environmental monitoring
Environmental Monitoring - methods
Environmental Monitoring - statistics & numerical data
Floating plants
Industrial districts
Industrial effluents
Industrial wastes
Industrial wastewater
Inhibition
Lemna minor
Lipid peroxidation
Lipid Peroxidation - drug effects
Malondialdehyde - metabolism
Peroxidase
Peroxidase - metabolism
Peroxidation
Spectrometry, X-Ray Emission
Testing equipment
Waste Disposal, Fluid
Waste water
Wastewater
Water analysis
Water Pollutants, Chemical - toxicity
Water quality
Water sampling
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Summary:This study aimed at assessing the toxic effects of industrial effluents using duckweed (Lemna minor L.) plants as a test system. Growth inhibition test according to standardized protocol (ISO 20079) was performed. The suitability of the Comet assay (indicates DNA damage) and certain parameters such as peroxidase activity and lipid peroxidation level, as biomarkers for environmental monitoring was evaluated. The water samples were collected monthly over a 3-month period from the stream near the industrial estate of Savski Marof, Croatia. All samples caused inhibition of growth rates based on frond number and biomass as well as decrease of chlorophylls content. In contrast, peroxidase activity, malondialdehyde content and tail extent moment (measure of DNA strand breaks) markedly increased. Obtained data demonstrate the relevance of duckweed as sensitive indicators of water quality as well as the significance of selected biological parameters in the reliable assessment of phyto- and genotoxic potential of complex wastewaters.
ISSN:0963-9292
1573-3017
DOI:10.1007/s10646-009-0408-0