Abstract
Extensive use of the fungicides azoxystrobin (AZ) and pyraclostrobin (PYR) can have negative effects on aquatic environments, but comprehensive studies on their effect on aquatic microbial communities are still lacking. We found that AZ and PYR could both inhibit the growth of Chlorella vulgaris, but PYR also inhibited Microcystis aeruginosa more strongly than did AZ. High-throughput sequencing analysis showed that AZ promoted the growth of Cyanobacteria in microcosms, and both PYR and AZ disturbed the ecological balance in the aquatic bacterial community and created distinct ecological risks. Our study suggests that the ecological risk of fungicides is complex, and fungicide use should be better managed to reduce potential risks to the environment.
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Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (21777144), One Hundred Talents Program of Chinese Academy of Sciences to H.F. Qian, and Xinjiang Uighur Autonomous Region Talent Project to H.F. Qian.
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Lu, T., Zhou, Z., Zhang, Q. et al. Ecotoxicological Effects of Fungicides Azoxystrobin and Pyraclostrobin on Freshwater Aquatic Bacterial Communities. Bull Environ Contam Toxicol 103, 683–688 (2019). https://doi.org/10.1007/s00128-019-02706-x
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DOI: https://doi.org/10.1007/s00128-019-02706-x