Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism
The responses of pure strains to contaminant (i.e., estrone, E1) exposure have been widely studied. However, few studies about the responses of multispecies microbial aggregates (e.g., periphytic biofilm) to E1 exposure are available. In this study, the changes in physiological activity and communit...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651320313506 |
| _version_ | 1818330116567072768 |
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| author | Fuqiang Zhang Yuanchun Yu Chang Pan Muhammad Saleem Yonghong Wu |
| author_facet | Fuqiang Zhang Yuanchun Yu Chang Pan Muhammad Saleem Yonghong Wu |
| author_sort | Fuqiang Zhang |
| collection | DOAJ |
| description | The responses of pure strains to contaminant (i.e., estrone, E1) exposure have been widely studied. However, few studies about the responses of multispecies microbial aggregates (e.g., periphytic biofilm) to E1 exposure are available. In this study, the changes in physiological activity and community composition of periphytic biofilms before and after E1 exposure were investigated. The results showed that periphytic biofilms exhibited high adaptability to E1 exposure at a concentration of 0.5 mg L−1 based on physiological results. The increase in productivity of extracellular polymeric substances (EPS) after exposure to E1 was the main factor preventing association between E1 and microbial cells. The increase in the activity of superoxide dismutase (SOD) and ATP enzyme activity and the change in the co-occurrence pattern of microbial communities (increasing the relative abundance of Xanthomonadaceae and Cryomorphacea) also protected biofilms from E1 exposure. However, exposure to a high concentration of E1 (>10 mg L−1) significantly decreased EPS productivity and metabolic activity due to the excessive accumulation of reactive oxygen species. In addition, the abundance of some sensitive species, such as Pseudanabaenaceae, decreased sharply at this concentration. Overall, this study highlighted the feasibility of periphytic biofilms to adapt to E1 exposure at low concentrations in aquatic environments. |
| first_indexed | 2024-12-13T12:58:50Z |
| format | Article |
| id | doaj.art-062bd9db051f4cc6924900634dddee60 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-13T12:58:50Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-062bd9db051f4cc6924900634dddee602022-12-21T23:45:06ZengElsevierEcotoxicology and Environmental Safety0147-65132021-01-01207111513Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanismFuqiang Zhang0Yuanchun Yu1Chang Pan2Muhammad Saleem3Yonghong Wu4Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; Corresponding author.Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaDepartment of Chemistry, Govt. Post Graduate College, Mirpur, Affiliated Mirpur University of Science and Technology, Mirpur, Azad Kashmir, PakistanState Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, ChinaThe responses of pure strains to contaminant (i.e., estrone, E1) exposure have been widely studied. However, few studies about the responses of multispecies microbial aggregates (e.g., periphytic biofilm) to E1 exposure are available. In this study, the changes in physiological activity and community composition of periphytic biofilms before and after E1 exposure were investigated. The results showed that periphytic biofilms exhibited high adaptability to E1 exposure at a concentration of 0.5 mg L−1 based on physiological results. The increase in productivity of extracellular polymeric substances (EPS) after exposure to E1 was the main factor preventing association between E1 and microbial cells. The increase in the activity of superoxide dismutase (SOD) and ATP enzyme activity and the change in the co-occurrence pattern of microbial communities (increasing the relative abundance of Xanthomonadaceae and Cryomorphacea) also protected biofilms from E1 exposure. However, exposure to a high concentration of E1 (>10 mg L−1) significantly decreased EPS productivity and metabolic activity due to the excessive accumulation of reactive oxygen species. In addition, the abundance of some sensitive species, such as Pseudanabaenaceae, decreased sharply at this concentration. Overall, this study highlighted the feasibility of periphytic biofilms to adapt to E1 exposure at low concentrations in aquatic environments.http://www.sciencedirect.com/science/article/pii/S0147651320313506EstroneMicrobial aggregatesPeriphytic biofilmExtracellular polymeric substances (EPS)Protection mechanisms |
| spellingShingle | Fuqiang Zhang Yuanchun Yu Chang Pan Muhammad Saleem Yonghong Wu Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism Ecotoxicology and Environmental Safety Estrone Microbial aggregates Periphytic biofilm Extracellular polymeric substances (EPS) Protection mechanisms |
| title | Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism |
| title_full | Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism |
| title_fullStr | Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism |
| title_full_unstemmed | Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism |
| title_short | Response of periphytic biofilm in water to estrone exposure: Phenomenon and mechanism |
| title_sort | response of periphytic biofilm in water to estrone exposure phenomenon and mechanism |
| topic | Estrone Microbial aggregates Periphytic biofilm Extracellular polymeric substances (EPS) Protection mechanisms |
| url | http://www.sciencedirect.com/science/article/pii/S0147651320313506 |
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