Use of waste materials to prevent tetracycline antibiotics toxicity on the growth of soil bacterial communities
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View abstract on PubMed
Summary
This summary is machine-generated.Pine bark amendment reduced tetracycline and oxytetracycline toxicity in agricultural soils. However, crushed mussel shell did not mitigate antibiotic toxicity, highlighting varied impacts of soil amendments on soil bacterial communities.
Area Of Science
- Environmental Science
- Soil Science
- Microbiology
Background
- Antibiotic residues, particularly tetracyclines, are increasing in agricultural soils globally.
- These antibiotics pose risks to beneficial soil bacterial communities.
- Sustainable practices are needed to mitigate antibiotic toxicity in soils.
Purpose Of The Study
- To evaluate waste/by-product materials as soil amendments for reducing tetracycline antibiotic toxicity.
- To assess the efficacy of pine bark (PB) and crushed mussel shell (CMS) in mitigating antibiotic effects on soil bacteria.
Main Methods
- Pine bark (PB) and crushed mussel shell (CMS) were added to four different soils at varying doses (0-48 g/kg).
- Soils were amended and then contaminated with tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC).
- Bacterial growth was measured using the leucine incorporation technique after one day of incubation.
Main Results
- Pine bark amendment reduced the toxicity of tetracycline (TC) and oxytetracycline (OTC) by 6-25% and 5-36%, respectively.
- Chlortetracycline (CTC) toxicity was unaffected or increased by pine bark amendment.
- Crushed mussel shell amendment showed no significant effect in preventing the toxicity of any of the tested tetracycline antibiotics.
Conclusions
- Pine bark shows potential as a soil amendment to reduce the toxicity of certain tetracycline antibiotics.
- Crushed mussel shell is not effective in mitigating tetracycline antibiotic toxicity in soils.
- Further research is needed to understand the specific mechanisms and optimize amendment strategies for soil health.
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