Effects of methanol on the performance of a novel BDE-47 degrading bacterial consortium QY2 in the co-metabolism process
2,2′,4,4′-tetrabrominated diphenyl ether (BDE-47), frequently detected in the environment, is arduous to be removed by conventional biological treatments due to its persistence and toxicity. Herein effects of methanol as a co-metabolic substrate on the biodegradation of BDE-47 was systematically stu...
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| Veröffentlicht in: | Journal of hazardous materials 2021-08, Vol.415, p.125698-125698, Article 125698 |
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| creator | Guo, Zhanyu Yin, Hua Wei, Xipeng Zhu, Minghan Lu, Guining Dang, Zhi |
| description | 2,2′,4,4′-tetrabrominated diphenyl ether (BDE-47), frequently detected in the environment, is arduous to be removed by conventional biological treatments due to its persistence and toxicity. Herein effects of methanol as a co-metabolic substrate on the biodegradation of BDE-47 was systematically studied by a functional bacterial consortium QY2, constructed through long-term and successive acclimation from indigenous microorganisms. The results revealed that BDE-47 (0.25 mg/L) was completely removed within 7 days in the 2.5 mM methanol treatment group, and its degradation efficiency was 3.26 times higher than that without methanol treatment. The addition of methanol dramatically accelerated the debromination, hydroxylation and phenyl ether bond breakage of BDE-47 by QY2. However, excessive methanol (>5 mM) combined with BDE-47 had strong stress on microbial cells, including significant (p |
| doi_str_mv | 10.1016/j.jhazmat.2021.125698 |
| format | Article |
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[Display omitted]
•A novel bacterial consortium QY2 with stable structure was obtained.•Methanol in moderation had remarkable effect on accelerating BDE-47 biodegradation.•Excessive methanol and BDE-47 synergistically generated oxidative stress on QY2.•Methylobacterium had a key role in the structural stability and degradation of QY2.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2021.125698</identifier><identifier>PMID: 33773249</identifier><language>eng</language><publisher>AMSTERDAM: Elsevier B.V</publisher><subject>Co-metabolic degradation ; Engineering ; Engineering, Environmental ; Environmental Sciences ; Environmental Sciences & Ecology ; Life Sciences & Biomedicine ; Metabolites ; Microbial community ; Polybrominated diphenyl ethers ; Science & Technology ; Technology ; Toxicity</subject><ispartof>Journal of hazardous materials, 2021-08, Vol.415, p.125698-125698, Article 125698</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright © 2021 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>25</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000657736400003</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c365t-488bec1b49c0068c9915a498d846cee9ba40dbdc719a0a1000ccda50cd5eaf7a3</citedby><cites>FETCH-LOGICAL-c365t-488bec1b49c0068c9915a498d846cee9ba40dbdc719a0a1000ccda50cd5eaf7a3</cites><orcidid>0000-0002-0131-4074 ; 0000-0002-2793-0860 ; 0000-0003-1974-1274</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jhazmat.2021.125698$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,39263,46000</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33773249$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Guo, Zhanyu</creatorcontrib><creatorcontrib>Yin, Hua</creatorcontrib><creatorcontrib>Wei, Xipeng</creatorcontrib><creatorcontrib>Zhu, Minghan</creatorcontrib><creatorcontrib>Lu, Guining</creatorcontrib><creatorcontrib>Dang, Zhi</creatorcontrib><title>Effects of methanol on the performance of a novel BDE-47 degrading bacterial consortium QY2 in the co-metabolism process</title><title>Journal of hazardous materials</title><addtitle>J HAZARD MATER</addtitle><addtitle>J Hazard Mater</addtitle><description>2,2′,4,4′-tetrabrominated diphenyl ether (BDE-47), frequently detected in the environment, is arduous to be removed by conventional biological treatments due to its persistence and toxicity. Herein effects of methanol as a co-metabolic substrate on the biodegradation of BDE-47 was systematically studied by a functional bacterial consortium QY2, constructed through long-term and successive acclimation from indigenous microorganisms. The results revealed that BDE-47 (0.25 mg/L) was completely removed within 7 days in the 2.5 mM methanol treatment group, and its degradation efficiency was 3.26 times higher than that without methanol treatment. The addition of methanol dramatically accelerated the debromination, hydroxylation and phenyl ether bond breakage of BDE-47 by QY2. However, excessive methanol (>5 mM) combined with BDE-47 had strong stress on microbial cells, including significant (p < 0.05) increase of reactive oxygen species level, superoxide dismutase activity, catalase activity and malondialdehyde content, even causing 20.65% cell apoptosis and 11.27% death. It was worth noting that the changes of QY2 community structure remained relatively stable after adding methanol, presumably attributed to the important role of the genus Methylobacterium in maintaining the functional and structural stability of QY2. This study deepened our understanding of how methanol as co-metabolite substances stimulated the biodegradation of BDE-47 by microbial consortium.
[Display omitted]
•A novel bacterial consortium QY2 with stable structure was obtained.•Methanol in moderation had remarkable effect on accelerating BDE-47 biodegradation.•Excessive methanol and BDE-47 synergistically generated oxidative stress on QY2.•Methylobacterium had a key role in the structural stability and degradation of QY2.</description><subject>Co-metabolic degradation</subject><subject>Engineering</subject><subject>Engineering, Environmental</subject><subject>Environmental Sciences</subject><subject>Environmental Sciences & Ecology</subject><subject>Life Sciences & Biomedicine</subject><subject>Metabolites</subject><subject>Microbial community</subject><subject>Polybrominated diphenyl ethers</subject><subject>Science & Technology</subject><subject>Technology</subject><subject>Toxicity</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkUtv1DAURi1ERaeFnwDyEgllsGMncVYIhuEhVaqQYMHKurFvOh4l8WA7Bfrr61GGbunKlny--zgm5CVna854_Xa_3u_gboS0LlnJ17ys6lY9ISuuGlEIIeqnZMUEk4VQrTwnFzHuGWO8qeQzci5E04hStivyZ9v3aFKkvqcjph1MfqB-ommH9ICh92GEyeDxGejkb3GgHz5uC9lQizcBrJtuaAcmYXAwUOOn6ENy80i__SypW-oYX-TS0PnBxZEegjcY43Ny1sMQ8cXpvCQ_Pm2_b74UV9efv27eXxVG1FUqpFIdGt7J1jBWK9O2vALZKqtkbRDbDiSznTUNb4EBzysaY6FixlYIfQPikrxe6ua-v2aMSY8uGhwGmNDPUZcVq0vFWCkzWi2oCT7GgL0-BDdC-Ks500fpeq9P0vVRul6k59yrU4u5G9E-pP5ZzoBagN_Y-T4ah1npA5ZnrqtM1jLfmNi4BMn5aePnKeXom8dHM_1uoTEbvXUY9ClhXci_rK13_9nlHvictz4</recordid><startdate>20210805</startdate><enddate>20210805</enddate><creator>Guo, Zhanyu</creator><creator>Yin, Hua</creator><creator>Wei, Xipeng</creator><creator>Zhu, Minghan</creator><creator>Lu, Guining</creator><creator>Dang, Zhi</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-0131-4074</orcidid><orcidid>https://orcid.org/0000-0002-2793-0860</orcidid><orcidid>https://orcid.org/0000-0003-1974-1274</orcidid></search><sort><creationdate>20210805</creationdate><title>Effects of methanol on the performance of a novel BDE-47 degrading bacterial consortium QY2 in the co-metabolism process</title><author>Guo, Zhanyu ; Yin, Hua ; Wei, Xipeng ; Zhu, Minghan ; Lu, Guining ; Dang, Zhi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-488bec1b49c0068c9915a498d846cee9ba40dbdc719a0a1000ccda50cd5eaf7a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Co-metabolic degradation</topic><topic>Engineering</topic><topic>Engineering, Environmental</topic><topic>Environmental Sciences</topic><topic>Environmental Sciences & Ecology</topic><topic>Life Sciences & Biomedicine</topic><topic>Metabolites</topic><topic>Microbial community</topic><topic>Polybrominated diphenyl ethers</topic><topic>Science & Technology</topic><topic>Technology</topic><topic>Toxicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guo, Zhanyu</creatorcontrib><creatorcontrib>Yin, Hua</creatorcontrib><creatorcontrib>Wei, Xipeng</creatorcontrib><creatorcontrib>Zhu, Minghan</creatorcontrib><creatorcontrib>Lu, Guining</creatorcontrib><creatorcontrib>Dang, Zhi</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guo, Zhanyu</au><au>Yin, Hua</au><au>Wei, Xipeng</au><au>Zhu, Minghan</au><au>Lu, Guining</au><au>Dang, Zhi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of methanol on the performance of a novel BDE-47 degrading bacterial consortium QY2 in the co-metabolism process</atitle><jtitle>Journal of hazardous materials</jtitle><stitle>J HAZARD MATER</stitle><addtitle>J Hazard Mater</addtitle><date>2021-08-05</date><risdate>2021</risdate><volume>415</volume><spage>125698</spage><epage>125698</epage><pages>125698-125698</pages><artnum>125698</artnum><issn>0304-3894</issn><eissn>1873-3336</eissn><abstract>2,2′,4,4′-tetrabrominated diphenyl ether (BDE-47), frequently detected in the environment, is arduous to be removed by conventional biological treatments due to its persistence and toxicity. Herein effects of methanol as a co-metabolic substrate on the biodegradation of BDE-47 was systematically studied by a functional bacterial consortium QY2, constructed through long-term and successive acclimation from indigenous microorganisms. The results revealed that BDE-47 (0.25 mg/L) was completely removed within 7 days in the 2.5 mM methanol treatment group, and its degradation efficiency was 3.26 times higher than that without methanol treatment. The addition of methanol dramatically accelerated the debromination, hydroxylation and phenyl ether bond breakage of BDE-47 by QY2. However, excessive methanol (>5 mM) combined with BDE-47 had strong stress on microbial cells, including significant (p < 0.05) increase of reactive oxygen species level, superoxide dismutase activity, catalase activity and malondialdehyde content, even causing 20.65% cell apoptosis and 11.27% death. It was worth noting that the changes of QY2 community structure remained relatively stable after adding methanol, presumably attributed to the important role of the genus Methylobacterium in maintaining the functional and structural stability of QY2. This study deepened our understanding of how methanol as co-metabolite substances stimulated the biodegradation of BDE-47 by microbial consortium.
[Display omitted]
•A novel bacterial consortium QY2 with stable structure was obtained.•Methanol in moderation had remarkable effect on accelerating BDE-47 biodegradation.•Excessive methanol and BDE-47 synergistically generated oxidative stress on QY2.•Methylobacterium had a key role in the structural stability and degradation of QY2.</abstract><cop>AMSTERDAM</cop><pub>Elsevier B.V</pub><pmid>33773249</pmid><doi>10.1016/j.jhazmat.2021.125698</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-0131-4074</orcidid><orcidid>https://orcid.org/0000-0002-2793-0860</orcidid><orcidid>https://orcid.org/0000-0003-1974-1274</orcidid></addata></record> |
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| subjects | Co-metabolic degradation Engineering Engineering, Environmental Environmental Sciences Environmental Sciences & Ecology Life Sciences & Biomedicine Metabolites Microbial community Polybrominated diphenyl ethers Science & Technology Technology Toxicity |
| title | Effects of methanol on the performance of a novel BDE-47 degrading bacterial consortium QY2 in the co-metabolism process |
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