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Responses of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa roxb. to tetracycline exposure.
- Source :
-
Ecotoxicology and environmental safety [Ecotoxicol Environ Saf] 2020 Oct 01; Vol. 202, pp. 110890. Date of Electronic Publication: 2020 Jun 24. - Publication Year :
- 2020
-
Abstract
- The presence of tetracycline is ubiquitous and has adverse effects on aquatic systems. A hydroponic experiment was conducted to investigate the ecological sensitivity of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa Roxb. Exposed to different concentrations of tetracycline (0, 0.1, 1, 10, 30 and 50 mg/L) for one day (1D) and 14 days (14D). The results showed that after 1D of tetracycline exposure, the physiological indices of H. dubia had no remarkable change except for proline which was significantly stimulated under 0.1 mg/L tetracycline. For T. bispinosa, guaiacol peroxidase (POD), polyphenol oxidase (PPO) and ascorbate peroxidase (APX) activity and protein and proline content were notably promoted under different concentrations of tetracycline, but PPO activity was significantly decreased in 50 mg/L. After 14D, tetracycline caused no harm to the growth and protein content of H. dubia, but negatively influenced lipid peroxidation product and chlorophyll content in H. dubia under high tetracycline concentrations. Superoxide dismutase (SOD) and POD activity of H. dubia significantly increased at high tetracycline concentrations, while catalase (CAT) and PPO activity significantly decreased. APX activity in H. dubia increased with tetracycline concentrations at low tetracycline concentrations. For T. bispinosa, high concentrations of tetracycline application significantly inhibited its growth and the content of protein and chlorophyll. SOD, POD, CAT, and PPO activity of T. bispinosa were induced under different concentrations of tetracycline and no lipid peroxidation was observed. APX activity in T. bispinosa was significantly inhibited at high tetracycline concentrations. The results suggest that tetracycline can cause oxidative damage in H. dubia but harm the metabolism process of T. bispinosa without inducing oxidative damage. Overall, the sensitivity of T. bispinosa exposed to tetracycline exposure is higher than that of H. dubia.<br /> (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Subjects :
- Antioxidants metabolism
Ascorbate Peroxidases metabolism
Catalase metabolism
Chlorophyll metabolism
Hydrocharitaceae drug effects
Lipid Peroxidation drug effects
Lythraceae
Oxidation-Reduction
Oxidative Stress drug effects
Peroxidase
Proline metabolism
Superoxide Dismutase metabolism
Anti-Bacterial Agents toxicity
Hydrocharitaceae physiology
Tetracycline toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 1090-2414
- Volume :
- 202
- Database :
- MEDLINE
- Journal :
- Ecotoxicology and environmental safety
- Publication Type :
- Academic Journal
- Accession number :
- 32593096
- Full Text :
- https://doi.org/10.1016/j.ecoenv.2020.110890