Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Zhao, Xuan1,2,3,4,5; Li, Jibing1,2,4,5; Zhang, Dayi6; Jiang, Longfei1,2,4; Wang, Yujie7; Hu, Beibei7; Wang, Shuang1,2,4,5; Dai, Yeliang1,2,4,5; Luo, Chunling1,2,4 ; Zhang, Gan1,2,4
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| Unveiling the novel role of ryegrass rhizospheric metabolites in benzo[a] pyrene biodegradation | |
| Source Publication | ENVIRONMENT INTERNATIONAL
 |
| ISSN | 0160-4120 |
| 2023-10-01 | |
| Volume | 180Pages:11 |
| DOI | 10.1016/j.envint.2023.108215 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| Abstract | Rhizoremediation is a promising remediation technology for the removal of soil persistent organic pollutants (POPs), especially benzo[a]pyrene (BaP). However, our understanding of the associations among rhizospheric soil metabolites, functional microorganisms, and POPs degradation in different plant growth stages is limited. We combined stable-isotope probing (SIP), high-throughput sequencing, and metabolomics to analyze changes in rhizospheric soil metabolites, functional microbes, and BaP biodegradation in the early growth stages (tillering, jointing) and later stage (booting) of ryegrass. Microbial community structures differed significantly among growth stages. Metabolisms such as benzenoids and carboxylic acids tended to be enriched in the early growth stage, while lipids and organic heterocyclic compounds dominated in the later stage. From SIP, eight BaP-degrading microbes were identified, and most of which such as Ilumatobacter and Singulisphaera were first linked with BaP biodegradation. Notably, the relationship between the differential metabolites and BaP degra-dation efficiency further suggested that BaP-degrading microbes might metabolize BaP directly to produce benzenoid metabolites (3-hydroxybenzo[a]pyrene), or utilize benzenoids (phyllodulcin) to stimulate the co-metabolism of BaP in early growth stage; some lipids and organic acids, e.g. 1-aminocyclopropane-1-carboxylic acid, might provide nutrients for the degraders to promote BaP metabolism in later stage. Accordingly, we determined that certain rhizospheric metabolites might regulate the rhizospheric microbial communities at different growth stages, and shift the composition and diversity of BaP-degrading bacteria, thereby enhancing in situ BaP degradation. Our study sheds light on POPs rhizoremediation mechanisms in petroleum-contaminated soils. |
| Keyword | Stable isotope probing (SIP) Persistent organic pollutants degradation Benzo[a]pyrene-degrading bacteria Metabolomics Bioremediation Plant growth stages |
| WOS ID | WOS:001081746000001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74918 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Li, Jibing; Luo, Chunling |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Hong Kong 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China 3.Kunming Univ, Coll Architecture & Civil Engn, Kunming 650214, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 6.Jilin Univ, Coll New Energy & Environm, Changchun 130021, Peoples R China 7.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Xuan,Li, Jibing,Zhang, Dayi,et al. Unveiling the novel role of ryegrass rhizospheric metabolites in benzo[a] pyrene biodegradation[J]. ENVIRONMENT INTERNATIONAL,2023,180:11. |
| APA | Zhao, Xuan.,Li, Jibing.,Zhang, Dayi.,Jiang, Longfei.,Wang, Yujie.,...&Zhang, Gan.(2023).Unveiling the novel role of ryegrass rhizospheric metabolites in benzo[a] pyrene biodegradation.ENVIRONMENT INTERNATIONAL,180,11. |
| MLA | Zhao, Xuan,et al."Unveiling the novel role of ryegrass rhizospheric metabolites in benzo[a] pyrene biodegradation".ENVIRONMENT INTERNATIONAL 180(2023):11. |
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