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New naphthalene whole-cell bioreporter for measuring and assessing naphthalene in polycyclic aromatic hydrocarbons contaminated site
| Content Provider | Scilit |
|---|---|
| Author | Sun, Yujiao Zhao, Xiaohui Zhang, Dayi Ding, Aizhong Chen, Cheng Huang, Wei E. Zhang, Huichun |
| Copyright Year | 2017 |
| Description | Journal: Chemosphere A new naphthalene bioreporter was designed and constructed in this work. A new vector, pWH1274_Nah, was constructed by the Gibson isothermal assembly fused with a 9 kb naphthalene-degrading gene nahAD (nahAa nahAb nahAc nahAd nahB nahF nahC nahQ nahE nahD) and cloned into Acinetobacter ADPWH_lux as the host, capable of responding to salicylate (the central metabolite of naphthalene). The ADPWH_Nah bioreporter could effectively metabolize naphthalene and evaluate the naphthalene in natural water and soil samples. This whole-cell bioreporter did not respond to other polycyclic aromatic hydrocarbons (PAHs; pyrene, anthracene, and phenanthrene) and demonstrated a positive response in the presence of 0.01 μM naphthalene, showing high specificity and sensitivity. The bioluminescent response was quantitatively measured after a 4 h exposure to naphthalene, and the model simulation further proved the naphthalene metabolism dynamics and the salicylate-activation mechanisms. The ADPWH_Nah bioreporter also achieved a rapid evaluation of the naphthalene in the PAH-contaminated site after chemical spill accidents, showing high consistency with chemical analysis. The engineered Acinetobacter variant had significant advantages in rapid naphthalene detection in the laboratory and potential in situ detection. The state-of-the-art concept of cloning PAHs-degrading pathway in salicylate bioreporter hosts led to the construction and assembly of high-throughput PAH bioreporter array, capable of crude oil contamination assessment and risk management. |
| Related Links | https://eprints.lancs.ac.uk/id/eprint/87608/1/Accepted_manuscript.pdf |
| Ending Page | 518 |
| Page Count | 9 |
| Starting Page | 510 |
| ISSN | 00456535 |
| e-ISSN | 18791298 |
| DOI | 10.1016/j.chemosphere.2017.08.027 |
| Journal | Chemosphere |
| Volume Number | 186 |
| Language | English |
| Publisher | Elsevier BV |
| Publisher Date | 2017-11-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chemosphere Environmental Sciences Acinetobacter Baylyi Gibson Cloning Polycyclic Aromatic Hydrocarbons (pahs) Whole-cell Bioreporter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Public Health, Environmental and Occupational Health Environmental Engineering |
