Co-inducible Catabolism of 2‑Naphthol Initiated by Hydroxylase CehC1C2 in Rhizobium sp. X9 Removed Its Ecotoxicity
2-Naphthol, which originates from various industrial activities, is widely disseminated through the discharge of industrial wastewater and is, thus, harmful to the water ecosystem, agricultural production, and human health. In this study, the carbaryl degrading strain Rhizobium sp. X9 was proven to...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2023-01, Vol.71 (1), p.626-634 |
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| container_title | Journal of agricultural and food chemistry |
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| creator | Zhou, Yidong Xia, Chunli Zhang, Jiazhuo Shen, Zhenyang Li, Zhaojing Zhang, Mingliang Sun, Lijun Liu, Dong Hong, Qing |
| description | 2-Naphthol, which originates from various industrial activities, is widely disseminated through the discharge of industrial wastewater and is, thus, harmful to the water ecosystem, agricultural production, and human health. In this study, the carbaryl degrading strain Rhizobium sp. X9 was proven to be able to degrade 2-naphthol and reduce its toxicity to rice (Oryza sativa) and Chlorella ellipsoidea. Two-component hydroxylase CehC1C2 is responsible for the initial step of degradation and generates 1,2-dihydroxynaphthalene, which is further degraded by the ceh cluster. The transcription of gene cluster cehC1C2 could be induced when both 2-naphthol and glucose were added. A bioinformatic analysis revealed that two transcriptional regulators, the inhibitor CehR2 and the activator CehR3, could be involved in this process. Our study elucidated the molecular mechanism of microbial degradation of 2-naphthol and provided an effective strategy for the in situ remediation of 2-naphthol contamination in the environment. |
| doi_str_mv | 10.1021/acs.jafc.2c06619 |
| format | Article |
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Two-component hydroxylase CehC1C2 is responsible for the initial step of degradation and generates 1,2-dihydroxynaphthalene, which is further degraded by the ceh cluster. The transcription of gene cluster cehC1C2 could be induced when both 2-naphthol and glucose were added. A bioinformatic analysis revealed that two transcriptional regulators, the inhibitor CehR2 and the activator CehR3, could be involved in this process. 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Our study elucidated the molecular mechanism of microbial degradation of 2-naphthol and provided an effective strategy for the in situ remediation of 2-naphthol contamination in the environment.</description><subject>Biotechnology and Biological Transformations</subject><subject>Carbaryl - metabolism</subject><subject>Chlorella - metabolism</subject><subject>Ecosystem</subject><subject>Humans</subject><subject>Mixed Function Oxygenases - genetics</subject><subject>Rhizobium - metabolism</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kM9KAzEQh4MoWqt3T5IHcOtM0v13lEVtoSgUBW9LNsnSlN2mbFJxPfkKvqJPYmqrNy8zh_l9P5iPkAuEEQLDayHdaClqOWISkgTzAzLAmEEUI2aHZAAhE2Vxgifk1LklAGRxCsfkhCdxxpMxDogvbGRWaiNN1WhaCC8q2xjXUltT9vXx-SDWC7-wDZ2ujDfCa0Wrnk561dm3vhEuMHpRYMGoWdH5wrzbymxa6tYj-pLTuW7ta0Cm3tFbab19M9L4_owc1aJx-ny_h-T57vapmESzx_tpcTOLBOeJj1JMU6jqscrZWACmgEpkKs7jlMtEsJyHQ8ZASZ0JxDCZ4EqDBORc5BnyIYFdr-ysc52uy3VnWtH1JUK5FVgGgeVWYLkXGJDLHbLeVK1Wf8CvsRC42gV-ULvpVuGD__u-AV8OfMs</recordid><startdate>20230111</startdate><enddate>20230111</enddate><creator>Zhou, Yidong</creator><creator>Xia, Chunli</creator><creator>Zhang, Jiazhuo</creator><creator>Shen, Zhenyang</creator><creator>Li, Zhaojing</creator><creator>Zhang, Mingliang</creator><creator>Sun, Lijun</creator><creator>Liu, Dong</creator><creator>Hong, Qing</creator><general>American Chemical Society</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><orcidid>https://orcid.org/0000-0003-4022-8803</orcidid><orcidid>https://orcid.org/0000-0001-5385-6281</orcidid><orcidid>https://orcid.org/0000-0001-7848-9190</orcidid></search><sort><creationdate>20230111</creationdate><title>Co-inducible Catabolism of 2‑Naphthol Initiated by Hydroxylase CehC1C2 in Rhizobium sp. 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| subjects | Biotechnology and Biological Transformations Carbaryl - metabolism Chlorella - metabolism Ecosystem Humans Mixed Function Oxygenases - genetics Rhizobium - metabolism |
| title | Co-inducible Catabolism of 2‑Naphthol Initiated by Hydroxylase CehC1C2 in Rhizobium sp. X9 Removed Its Ecotoxicity |
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