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World within world: Intestinal bacteria combining physiological parameters to investigate the response of Metaphire guillelmi to tetracycline stress
- Source :
- Environmental pollution (Barking, Essex : 1987). 261
- Publication Year :
- 2019
-
Abstract
- Due to the abusive usage of antibiotics in animal husbandry, a large amount of residual antibiotics has been released into the environment, therein posing great threat against both environment security and public health. Therefore, it is of great significance to investigate the toxicity of antibiotics on the widely-applied bioindicator-earthworm. In this work, the physiological parameters and the intestinal bacteria community of Metaphire guillelmi were monitored simultaneously to evaluate their sensitivity to the tetracycline (TC) exposure. As expected, the antioxidant enzyme activity and coelomocyte apoptosis acted fairly well as biomarkers for the TC toxicity. In contrast, the intestinal bacteria of Metaphire guillelmi responded varyingly to different TC doses. When TC concentration increased from 0 to 35.7 μg cm−2, the percentage of the Proteobacteria phylum declined significantly from 85.5% to 34.4%, while the proportions of the Firmicutes, Planctomycetes and Atinomycete phyla clearly increased (p
- Subjects :
- 010504 meteorology & atmospheric sciences
medicine.drug_class
Firmicutes
Tetracycline
Health, Toxicology and Mutagenesis
Antibiotics
010501 environmental sciences
Toxicology
01 natural sciences
Microbiology
medicine
Animals
Soil Pollutants
Oligochaeta
Coelomocyte
0105 earth and related environmental sciences
biology
Bacteria
Planctomycetes
Tetracycline Resistance
General Medicine
biology.organism_classification
Pollution
Enzyme assay
Anti-Bacterial Agents
Toxicity
biology.protein
Proteobacteria
medicine.drug
Subjects
Details
- ISSN :
- 18736424
- Volume :
- 261
- Database :
- OpenAIRE
- Journal :
- Environmental pollution (Barking, Essex : 1987)
- Accession number :
- edsair.doi.dedup.....468d09ca11205683b71a9a7b643a4432