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Feedback mechanisms of periphytic biofilms to ZnO nanoparticles toxicity at different phosphorus levels by Shujie Cai; Haotian Wang; Jun Tang; Xiufeng Tang; Peng Guan; Jiuyu Li; Yuji Jiang; Yonghong Wu; Renkou Xu is a Environmental Science article available to read on EtoBox.
What is Feedback mechanisms of periphytic biofilms to ZnO nanoparticles toxicity at different phosphorus levels about?
The increasing use of nanoparticles (NPs) has raised concerns about their potential environmental risks. Many researches on NPs focused on the toxicity mechanism to microorganisms, but neglect the toxicity effects in relation to nutritional conditions. Here, we evaluated the interactive effects of zinc oxide (ZnO) NPs and phosphorus (P) levels on the bacterial community and functioning of periphytic biofilms. Results showed that long-term exposure to ZnO NPs significantly reduced alkaline phosphatase activity (APA) of periphytic biofilms just in P-limited conditions. Co-occurrence network analysis indicated that ZnO NPs exposure reduced network complexity between bacterial taxa in P-limited conditions, while the opposite trend was observed in P-replete conditions. Correlation analysis and random forest modeling suggested that excessive Zn 2+ released and high reactive oxygen species (ROS) production might be mainly responsible for the inhibition of APA induced by ZnO NPs under P-limited conditions, while adjustment of bacterial diversity and improvement of keystone taxa cooperation were the main mechanisms in maintaining APA when subjected to weak toxicity of ZnO NPs in Preplete co
Who reads Feedback mechanisms of periphytic biofilms to ZnO nanoparticles toxicity at different phosphorus levels?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Shujie Cai; Haotian Wang; Jun Tang; Xiufeng Tang; Peng Guan; Jiuyu Li; Yuji Jiang; Yonghong Wu; Renkou Xu
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Environmental Science (Physical Sciences)