ArticleEcotoxicology (London, England)2013
Chronic exposure of river sediments to environmentally relevant levels of tetracycline affects bacterial communities but not denitrification rates.
Article in Ecotoxicology (London, England), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Differentiated molecular defense strategies and survival trade-offs in the marine ciliateFrontiers in microbiology · 2026Article
- Effects of Florfenicol onAntibiotics (Basel, Switzerland) · 2023Article
- Maximum levels of cross-contamination for 24 antimicrobial active substances in non-target feed. Part 12:EFSA journal. European Food Safety Authority · 2021Article
- Article
- Chronic exposure to complex metal oxide nanoparticles elicits rapid resistance inChemical science · 2019Article
- Antibiotic Effects on Microbial Communities Responsible for Denitrification and NFrontiers in microbiology · 2018Article
- Do antibiotics have environmental side-effects? Impact of synthetic antibiotics on biogeochemical processes.Environmental science and pollution research international · 2016Review
- An Analysis of the Effects of Vancomycin and/or Vancomycin-Resistant Citrobacter freundii Exposure on the Microbial Community Structure in Soil.Frontiers in microbiology · 2016Article
- Exposure to vancomycin causes a shift in the microbial community structure without affecting nitrate reduction rates in river sediments.Environmental science and pollution research international · 2015Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The effects of tetracycline (TC) at chronic sub-inhibitory exposure concentrations on benthic denitrification rates and bacterial communities were explored. River sediments were continuously exposed to different TC concentrations (0.5, 20 and 10,000 μg L(-1)) for 2 weeks in flow-through reactors allowing denitrification and bacterial growth conditions. Bacterial communities were fingerprinted by Denaturing Gradient Gel Electrophoresis of 16S rRNA gene amplification products. Cultivable denitrifiers enriched from the sediment were tested for TC resistance (2-128 mg L(-1)). Denitrification rates were unaffected by exposure to TC, regardless of concentration. In contrast, the bacterial community composition changed significantly from sub-inhibitory (ng-μg L(-1)) to therapeutic (mg L(-1)) exposure concentrations. Furthermore the cultivable denitrifiers showed a high TC sensitivity (<4 mg L(-1)). Maintenance of efficient benthic denitrification rates, even at the highest level of TC exposure most likely originated from an adaptation of the autochthonous bacterial community where dominant species become those that acquire, or already have resistance to antibiotics.
Indexed as
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.