Ciprofloxacin vs. temperature: Antibiotic toxicity in the free-floating liverwort Ricciocarpus natans from a climate change perspective

The physiological responses of the aquatic liverwort Ricciocarpus natans to ciprofloxacin exposure under different growth temperatures were investigated

Marcelo Pedrosa Gomes; Júlio César Moreira de Brito; Elisa Monteze Bicalho; Janaína Guernica Silva; Maria de Fátima Gomides; Queila Souza Garcia; Cleber Cunha Figueredo

2018

Scholarcy highlights

  • The physiological responses of the aquatic liverwort Ricciocarpus natans to ciprofloxacin exposure under different growth temperatures were investigated
  • Cipro appears to act as an inhibitor of mitochondrial Complex III by blocking the oxidation of quinol, resulting in the formation of hydrogen peroxide
  • H2O2 accumulation upon Cipro exposure is responsible for decreased photosynthesis in plants
  • The amount of H2O2 in plants is kept under control by antioxidant enzymes, whose activities are central to the responses of plants to Cipro yet are influenced by temperature
  • The uptake of Cipro by plants appears to be largely a passive process, some uptake must be driven by an energy-consuming process
  • Ricciocarpus natans should be considered for programs aimed at the reclamation of Cipro since this plant exhibits high Cipro-tolerance, the capacity for accumulation and increased uptake rates of the antibiotic with increasing temperatures

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