New insights of simultaneous partial nitritation, anammox and denitrification (SNAD) system to Zn(II) exposure : Focus on affecting the regulation of quorum sensing on extracellular electron transfer and microbial metabolism
Copyright © 2021 Elsevier Ltd. All rights reserved..
Here, the toxicity responses mechanism of the simultaneous partial nitritation, anammox and denitrification (SNAD) system to Zn(II) exposure were explored with emphasis on the repressed quorum sensing (QS) regulation on extracellular electron transfer and microbial metabolism. Results showed that Zn(II) accumulated in cells and induced oxidative stress, which led to microbial structure destruction. The increased electron transfer impedance and reduced redox substances (flavin/Cytochrome c) implied that Zn(II) affected electron transfer. The decreased ATP level, dehydrogenase and nitrogen related enzymatic activities showed Zn(II) affected organic matter and nitrogen metabolism. Furthermore, combined with Pearson network analysis, Zn(II) exposure disturbed the QS to decrease Acyl Homoserine Lactones (AHLs) secretion responsible for regulating extracellular electron transfer and microbial metabolism, thereby disturbing the performance of the SNAD system. This study provided new insights into the toxicity responses mechanism of the SNAD system to HM exposure.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:346 |
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| Enthalten in: |
Bioresource technology - 346(2022) vom: 06. Feb., Seite 126602 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Yinuo [VerfasserIn] |
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| Links: |
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| Themen: |
Extracellular electron transfer |
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| Anmerkungen: |
Date Completed 02.02.2022 Date Revised 02.02.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2021.126602 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a New insights of simultaneous partial nitritation, anammox and denitrification (SNAD) system to Zn(II) exposure |b Focus on affecting the regulation of quorum sensing on extracellular electron transfer and microbial metabolism |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Here, the toxicity responses mechanism of the simultaneous partial nitritation, anammox and denitrification (SNAD) system to Zn(II) exposure were explored with emphasis on the repressed quorum sensing (QS) regulation on extracellular electron transfer and microbial metabolism. Results showed that Zn(II) accumulated in cells and induced oxidative stress, which led to microbial structure destruction. The increased electron transfer impedance and reduced redox substances (flavin/Cytochrome c) implied that Zn(II) affected electron transfer. The decreased ATP level, dehydrogenase and nitrogen related enzymatic activities showed Zn(II) affected organic matter and nitrogen metabolism. Furthermore, combined with Pearson network analysis, Zn(II) exposure disturbed the QS to decrease Acyl Homoserine Lactones (AHLs) secretion responsible for regulating extracellular electron transfer and microbial metabolism, thereby disturbing the performance of the SNAD system. This study provided new insights into the toxicity responses mechanism of the SNAD system to HM exposure | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Extracellular electron transfer | |
| 650 | 4 | |a Microbial metabolism | |
| 650 | 4 | |a Quorum sensing | |
| 650 | 4 | |a SNAD | |
| 650 | 4 | |a Zn(II) exposure | |
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| 650 | 7 | |a Zinc |2 NLM | |
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| 700 | 1 | |a Guo, Jianbo |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Jianbing |e verfasserin |4 aut | |
| 700 | 1 | |a Hou, Yanan |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Caicai |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Haibo |e verfasserin |4 aut | |
| 700 | 1 | |a Zhong, Yuan |e verfasserin |4 aut | |
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