Microbial bioavailability of 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) in natural sediments from major rivers of China
Microbial degradation plays a crucial role in eliminating polybrominated diphenyl ethers (PBDEs) in environments. However, the microbial bioavailability of PBDEs in aquatic sediments is not well understood. In this work, the bioavailability of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), a typical P...
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| Veröffentlicht in: | Chemosphere (Oxford) 2016-06, Vol.153, p.386-393 |
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| creator | Zhu, Baotong Xia, Xinghui Wu, Shan Lu, Xiaoxia Yin, Xin'an |
| description | Microbial degradation plays a crucial role in eliminating polybrominated diphenyl ethers (PBDEs) in environments. However, the microbial bioavailability of PBDEs in aquatic sediments is not well understood. In this work, the bioavailability of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), a typical PBDE congener, to PBDE-degrading microorganisms in natural sediments from six Chinese rivers under anaerobic conditions was investigated. The contents of black carbon (BC) and total organic carbon (TOC) in the six sediment samples were in the range of 0.025%–0.30% and 0.03%–3.38%, respectively. BDE-47 desorption from various sediments was fitted well with the first-order three-compartment desorption model. The desorbing fraction of sediment-associated BDE-47 at each desorption time interval exhibited a significant negative correlation with the BC content (p |
| doi_str_mv | 10.1016/j.chemosphere.2016.03.050 |
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•Desorption and microbial debromination of BDE-47 in sediments were investigated.•BDE-47 desorption was fitted well with the first-order 3-compartment model.•The debromination ratio of BDE-47 negatively correlated with the BC content.•Debromination of BDE-47 by microbes underwent a stepwise debromination pathway.•The BDE-47 bioavailability to microbes in sediments was mainly controlled by BC.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2016.03.050</identifier><identifier>PMID: 27031801</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Bacteria - metabolism ; Bioavailability ; Biological Availability ; Black carbon ; China ; Desorption ; Geologic Sediments - chemistry ; Halogenated Diphenyl Ethers - metabolism ; Microbial debromination ; Polybrominated diphenyl ethers ; Riverine sediments ; Rivers - chemistry ; Water Pollutants, Chemical - metabolism</subject><ispartof>Chemosphere (Oxford), 2016-06, Vol.153, p.386-393</ispartof><rights>2016 Elsevier Ltd</rights><rights>Copyright © 2016 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c461t-16b23cbed3718a4cc991adb2e198b5be5839d790a12335c2e7ec992209ffa8373</citedby><cites>FETCH-LOGICAL-c461t-16b23cbed3718a4cc991adb2e198b5be5839d790a12335c2e7ec992209ffa8373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0045653516303654$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27031801$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhu, Baotong</creatorcontrib><creatorcontrib>Xia, Xinghui</creatorcontrib><creatorcontrib>Wu, Shan</creatorcontrib><creatorcontrib>Lu, Xiaoxia</creatorcontrib><creatorcontrib>Yin, Xin'an</creatorcontrib><title>Microbial bioavailability of 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) in natural sediments from major rivers of China</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>Microbial degradation plays a crucial role in eliminating polybrominated diphenyl ethers (PBDEs) in environments. However, the microbial bioavailability of PBDEs in aquatic sediments is not well understood. In this work, the bioavailability of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), a typical PBDE congener, to PBDE-degrading microorganisms in natural sediments from six Chinese rivers under anaerobic conditions was investigated. The contents of black carbon (BC) and total organic carbon (TOC) in the six sediment samples were in the range of 0.025%–0.30% and 0.03%–3.38%, respectively. BDE-47 desorption from various sediments was fitted well with the first-order three-compartment desorption model. The desorbing fraction of sediment-associated BDE-47 at each desorption time interval exhibited a significant negative correlation with the BC content (p < 0.01). In the sediments, the anaerobic debromination of BDE-47 by microorganisms underwent a stepwise debromination pathway generating mainly three lower brominated congeners (BDE-28, -17 and −4). The microbial debromination ratio of BDE-47 ranged from 4.21% to 7.89% in various sediments after 120 d incubation anaerobically, and it negatively correlated with the content of sediment BC significantly (p < 0.01). However, the desorbing fraction and microbial debromination ratio of BDE-47 only showed weak correlations with the TOC content in sediments (p > 0.05). Furthermore, there was a significant positive correlation of desorbing fraction of BDE-47 from sediments with its microbial debromination ratio (p < 0.01) as well as with the level of its three lower brominated products (p < 0.05) after the first 20 d incubation. This study suggests that the BDE-47 bioavailability to microorganisms in anaerobic river sediments is mainly influenced by the content of sediment BC which controls the desorbing fraction of sediment-associated BDE-47.
•Desorption and microbial debromination of BDE-47 in sediments were investigated.•BDE-47 desorption was fitted well with the first-order 3-compartment model.•The debromination ratio of BDE-47 negatively correlated with the BC content.•Debromination of BDE-47 by microbes underwent a stepwise debromination pathway.•The BDE-47 bioavailability to microbes in sediments was mainly controlled by BC.</description><subject>Bacteria - metabolism</subject><subject>Bioavailability</subject><subject>Biological Availability</subject><subject>Black carbon</subject><subject>China</subject><subject>Desorption</subject><subject>Geologic Sediments - chemistry</subject><subject>Halogenated Diphenyl Ethers - metabolism</subject><subject>Microbial debromination</subject><subject>Polybrominated diphenyl ethers</subject><subject>Riverine sediments</subject><subject>Rivers - chemistry</subject><subject>Water Pollutants, Chemical - metabolism</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc1q3DAUhUVpaaZpX6GouwTGjn5sy1q20_QHUrJJ10KSrxkNtjWVPAMDXeSZ-kh5ktxh0tJlVhfEd84R5xDygbOSM95cbUq_hjHm7RoSlAKfSiZLVrMXZMFbpQsudPuSLBir6qKpZX1G3uS8YQzJWr8mZ0IxyVvGF-T3j-BTdMEO1IVo9zYM1oUhzAcaeyqW4uH-z7JaVniKO5iTdSmOsQsYPR0GCjN-gV58-nxdVOqSholOdt4ldMvQhRGmOdMeFXS0m5hoCntI-ei8WofJviWvejtkePd0z8nPL9d3q2_Fze3X76uPN4WvGj4XvHFCegedVLy1lfdac9s5AVy3rnZQt1J3SjPLhZS1F6AAESGY7nvbSiXPycXJd5virx3k2YwhexgGO0HcZcMVlqYaKarnoELwCstDVJ9QLDDnBL3ZpjDadDCcmeNOZmP-28kcdzJMGtwJte-fYnZuhO6f8u8wCKxOAGAv-wDJZB9g8thqAj-bLoZnxDwCn3GrRw</recordid><startdate>201606</startdate><enddate>201606</enddate><creator>Zhu, Baotong</creator><creator>Xia, Xinghui</creator><creator>Wu, Shan</creator><creator>Lu, Xiaoxia</creator><creator>Yin, Xin'an</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7ST</scope><scope>7T7</scope><scope>7TV</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>201606</creationdate><title>Microbial bioavailability of 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) in natural sediments from major rivers of China</title><author>Zhu, Baotong ; Xia, Xinghui ; Wu, Shan ; Lu, Xiaoxia ; Yin, Xin'an</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c461t-16b23cbed3718a4cc991adb2e198b5be5839d790a12335c2e7ec992209ffa8373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Bacteria - metabolism</topic><topic>Bioavailability</topic><topic>Biological Availability</topic><topic>Black carbon</topic><topic>China</topic><topic>Desorption</topic><topic>Geologic Sediments - chemistry</topic><topic>Halogenated Diphenyl Ethers - metabolism</topic><topic>Microbial debromination</topic><topic>Polybrominated diphenyl ethers</topic><topic>Riverine sediments</topic><topic>Rivers - chemistry</topic><topic>Water Pollutants, Chemical - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhu, Baotong</creatorcontrib><creatorcontrib>Xia, Xinghui</creatorcontrib><creatorcontrib>Wu, Shan</creatorcontrib><creatorcontrib>Lu, Xiaoxia</creatorcontrib><creatorcontrib>Yin, Xin'an</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhu, Baotong</au><au>Xia, Xinghui</au><au>Wu, Shan</au><au>Lu, Xiaoxia</au><au>Yin, Xin'an</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microbial bioavailability of 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) in natural sediments from major rivers of China</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2016-06</date><risdate>2016</risdate><volume>153</volume><spage>386</spage><epage>393</epage><pages>386-393</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><abstract>Microbial degradation plays a crucial role in eliminating polybrominated diphenyl ethers (PBDEs) in environments. However, the microbial bioavailability of PBDEs in aquatic sediments is not well understood. In this work, the bioavailability of 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), a typical PBDE congener, to PBDE-degrading microorganisms in natural sediments from six Chinese rivers under anaerobic conditions was investigated. The contents of black carbon (BC) and total organic carbon (TOC) in the six sediment samples were in the range of 0.025%–0.30% and 0.03%–3.38%, respectively. BDE-47 desorption from various sediments was fitted well with the first-order three-compartment desorption model. The desorbing fraction of sediment-associated BDE-47 at each desorption time interval exhibited a significant negative correlation with the BC content (p < 0.01). In the sediments, the anaerobic debromination of BDE-47 by microorganisms underwent a stepwise debromination pathway generating mainly three lower brominated congeners (BDE-28, -17 and −4). The microbial debromination ratio of BDE-47 ranged from 4.21% to 7.89% in various sediments after 120 d incubation anaerobically, and it negatively correlated with the content of sediment BC significantly (p < 0.01). However, the desorbing fraction and microbial debromination ratio of BDE-47 only showed weak correlations with the TOC content in sediments (p > 0.05). Furthermore, there was a significant positive correlation of desorbing fraction of BDE-47 from sediments with its microbial debromination ratio (p < 0.01) as well as with the level of its three lower brominated products (p < 0.05) after the first 20 d incubation. This study suggests that the BDE-47 bioavailability to microorganisms in anaerobic river sediments is mainly influenced by the content of sediment BC which controls the desorbing fraction of sediment-associated BDE-47.
•Desorption and microbial debromination of BDE-47 in sediments were investigated.•BDE-47 desorption was fitted well with the first-order 3-compartment model.•The debromination ratio of BDE-47 negatively correlated with the BC content.•Debromination of BDE-47 by microbes underwent a stepwise debromination pathway.•The BDE-47 bioavailability to microbes in sediments was mainly controlled by BC.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>27031801</pmid><doi>10.1016/j.chemosphere.2016.03.050</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bacteria - metabolism Bioavailability Biological Availability Black carbon China Desorption Geologic Sediments - chemistry Halogenated Diphenyl Ethers - metabolism Microbial debromination Polybrominated diphenyl ethers Riverine sediments Rivers - chemistry Water Pollutants, Chemical - metabolism |
| title | Microbial bioavailability of 2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) in natural sediments from major rivers of China |
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