Algicidal Efficiency and Genotoxic Effects of <i>Phanerochaete chrysosporium</i> against <i>Microcystis aeruginosa</i>
Eutrophication has become a severe environmental problem. This study evaluated the algicidal efficiency and genotoxic effects of <i>Microcystis aeruginosa</i> co-cultured with <i>Phanerochaete chrysosporium</i> for 48 h under the optimum conditions of 250 mg/L of <i>P....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-06-01
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| Series: | International Journal of Environmental Research and Public Health |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1660-4601/17/11/4029 |
| Summary: | Eutrophication has become a severe environmental problem. This study evaluated the algicidal efficiency and genotoxic effects of <i>Microcystis aeruginosa</i> co-cultured with <i>Phanerochaete chrysosporium</i> for 48 h under the optimum conditions of 250 mg/L of <i>P. chrysosporium</i> at 25 °C with dissolved oxygen content of 7.0 mg/L. The results showed that the activity of algal dehydrogenase, superoxide dismutase, and peroxidase were all decreased and the malondialdehyde content increased after co-culturing. Fourier transform infrared spectroscopy and scanning electron microscopy observations showed that the functional group and structure of algal cells were significantly changed. Compared with those of control tadpoles, blood cells of <i>Fejervarya multistriata</i> tadpoles had increased micronucleus frequency (from 1.05 ± 0.09 to 1.99 ± 0.05) and abnormal nuclei (from 2.45 ± 0.06 to 5.83 ± 0.07). The tail length of <i>M. aeruginosa</i> co-cultured with <i>P. chrysosporium</i> increased from 1.12 ± 0.21 to 21.68 ± 0.34, and the comet length increased from 6.45 ± 0.09 to 36.45 ± 0.67 within 48 h. Micronucleus assay and Comet assay results demonstrated that <i>P. chrysosporium</i> might effectively remove algae and reduce genotoxic effects and may be safe for aquatic ecosystems. |
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| ISSN: | 1661-7827 1660-4601 |