| Coupling effects of nitrate reduction and sulfur oxidation in a subtropical marine mangrove ecosystem with Spartina alterniflora invasion | |
Nie, Shiqing ; Mo, Shuming; Gao, Tingwei; Yan, Bing; Shen, Peihong; Kashif, Muhammad; Zhang, Zufan; Li, Jinhui; Jiang, Chengjian
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| 2023 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| Volume | 862Pages:160930-1-10 |
| Abstract | The mangrove ecosystem has a high nitrate reduction capacity, which significantly alleviates severe nitrogen pollution. However, current research on nitrate reduction mechanisms in the mangrove ecosystem is limited. Furthermore, Spartina alterniflora invasion has disrupted the balance of the mangrove ecosystem and the effect of S. alterniflora on nitrate reduction has not yet been fully elucidated. Nitrate reduction was comprehensively investigated in a subtropical mangrove ecosystem in this study, which has been invaded by S. alterniflora for 40 years. Results showed that S. alterniflora significantly increased the relative and absolute abundance of nitrate reduction genes, especially nirS (nitrite reductase), in the mangrove ecosystem. Dissimilatory nitrate reduction to ammonium was the main pathway of nitrate reduction in the mangrove ecosystem. Nitrate reduction was mainly performed by Desulfobacterales and occurred in the shallow layers (0-10 cm) of mangrove sediments. A strong positive correlation was found between nitrate reduction and sulfur oxidation (especially sulfide oxidation), and the sulfide content was significantly positively correlated with the relative abundance of nitrate reduction genes. Moreover, 207 metagenomic assembled genomes (MAGs) were constructed, including 50 MAGs with high numbers (>= 10) of nitrate reduction genes. This finding indicates that the dominant microbes had strong nitrate reduction potential in mangrove sediments. Our findings highlight the impact of S. alterniflora invasion on nitrate reduction in a subtropical marine mangrove ecosystem. This study provides new insights into our understanding of nitrogen pollution control and contributes to the exploration of new nitrogen-degrading microbes in mangrove ecosystems. |
| Department | 城市与区域生态国家重点实验室 |
| Keyword | Shotgun metagenomics Microbial community Metagenomic assembled genomes Desulfobacterales Nitrogen pollution |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/48396 |
| Collection | 城市与区域生态国家重点实验室 |
| Affiliation | 1.Guangxi University 2.Chinese Academy of Sciences 3.Research Center for Eco-Environmental Sciences (RCEES) 4.University of Chinese Academy of Sciences, CAS |
| Recommended Citation GB/T 7714 | Nie, Shiqing,Mo, Shuming,Gao, Tingwei,et al. Coupling effects of nitrate reduction and sulfur oxidation in a subtropical marine mangrove ecosystem with Spartina alterniflora invasion[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,862:160930-1-10. |
| APA | Nie, Shiqing.,Mo, Shuming.,Gao, Tingwei.,Yan, Bing.,Shen, Peihong.,...&Jiang, Chengjian.(2023).Coupling effects of nitrate reduction and sulfur oxidation in a subtropical marine mangrove ecosystem with Spartina alterniflora invasion.SCIENCE OF THE TOTAL ENVIRONMENT,862,160930-1-10. |
| MLA | Nie, Shiqing,et al."Coupling effects of nitrate reduction and sulfur oxidation in a subtropical marine mangrove ecosystem with Spartina alterniflora invasion".SCIENCE OF THE TOTAL ENVIRONMENT 862(2023):160930-1-10. |
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| Coupling effects of （1204KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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