期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 99, 期 3, 页码 315-320出版社
SPRINGER
DOI: 10.1007/s00128-017-2091-9
关键词
Chlortetracycline; Oxytetracycline; Enrofloxacin; Pseudokirchneriella subcapitata; Allium cepa
资金
- Buenos Aires University, Argentina under UBACyT [20020150200116BA]
The toxicity of chlortetracycline (CTC), oxytetracycline (OTC) and enrofloxacin (ENF) was tested on two green algal species: the international standard Pseudokirchneriella subcapitata and the native Argentine species Ankistrodesmus fusiformis. All three antibiotics inhibited the algal growth. The most sensitive species was P. subcapitata, for which the EC50 for CTC, OTC and ENF were 1.19 +/- 0.53, 0.92 +/- 0.30 and 5.18 +/- 3.80 mg L-1, respectively. The EC50 for A. fusiformis, were 3.23 +/- 0.53, 7.15 +/- 2.69 and 10.6 +/- 1.28 mg L-1, respectively. The genotoxicity of these veterinary antibiotics was also assessed using chromosome aberration (CA) and micronuclei (MN) induction in Allium cepa roots. Three concentrations were tested (0.1, 1 and 10 mg L-1). Only ENF at 1 and 10 mg L-1 showed any significant MN induction. These data revealed that CTC, OTC and ENF could cause toxicity on green algae, whereas ENF could cause genotoxicity on A. cepa plants.
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