A novel method using cyanobacteria for ecotoxicity test of veterinary antimicrobial agents

The effect of antimicrobial agents for veterinary use on the growth of cyanobacteria was investigated by measuring minimum inhibitory concentration, medium effective concentration (EC50), and no‐observed‐effect concentration of seven antimicrobial agents for eight cyanobacteria. The results demonstr...

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Bibliographic Details
Published in:Environmental toxicology and chemistry 2007-04, Vol.26 (4), p.601-606
Main Authors: Ando, Tomonori, Nagase, Hiroyasu, Eguchi, Kaoru, Hirooka, Takashi, Nakamura, Takanori, Miyamoto, Kazuhisa, Hirata, Kazumasa
Format: Article
Language:English
Subjects:
Algae
Algal toxicity
Anti-Infective Agents - toxicity
Antimicrobial agent
Antimicrobial agents
Aquatic plants
Bacteria
Cell growth
Chemicals
Cyanobacteria
Cyanobacteria - drug effects
Cyanobacteria - growth & development
Cyanobacterium
Cyanophyta
Data analysis
Dose-Response Relationship, Drug
Ecotoxicity test
Infectious diseases
Microbial Sensitivity Tests
Microbiology
Microcystis aeruginosa
No-Observed-Adverse-Effect Level
Ratios
Sewage treatment plants
Synechococcus
Toxicity Tests - methods
Veterinary Drugs - toxicity
Vitamin B
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Summary:The effect of antimicrobial agents for veterinary use on the growth of cyanobacteria was investigated by measuring minimum inhibitory concentration, medium effective concentration (EC50), and no‐observed‐effect concentration of seven antimicrobial agents for eight cyanobacteria. The results demonstrated that the seven antimicrobial agents, even at low concentrations, inhibited the growth of cyanobacteria. Microcystis aeruginosa and Synechococcus sp. had the highest sensitivity to the antimicrobial agents used in the present study. It is considered that the utilization of cyanobacteria would enable easy and highly sensitive assessment of the toxicity of such chemicals as antimicrobial agents. We suggest that cyanobacteria be used for ecotoxicity test in addition to the hitherto established method that uses green algae.
ISSN:0730-7268
1552-8618
DOI:10.1897/06-195R.1