1
|
Cai Y, Chen C, Sun T, Li G, Wang W, Zhao H, An T. Mariculture waters as yet another hotbed for the creation and transfer of new antibiotic-resistant pathogenome. ENVIRONMENT INTERNATIONAL 2024; 187:108704. [PMID: 38692150 DOI: 10.1016/j.envint.2024.108704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/11/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
With the rapid growth of aquaculture globally, large amounts of antibiotics have been used to treat aquatic disease, which may accelerate induction and spread of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in aquaculture environments. Herein, metagenomic and 16S rRNA analyses were used to analyze the potentials and co-occurrence patterns of pathogenome (culturable and unculturable pathogens), antibiotic resistome (ARGs), and mobilome (mobile genetic elements (MGEs)) from mariculture waters near 5000 km coast of South China. Total 207 species of pathogens were identified, with only 10 culturable species. Furthermore, more pathogen species were detected in mariculture waters than those in coastal waters, and mariculture waters were prone to become reservoirs of unculturable pathogens. In addition, 913 subtypes of 21 ARG types were also identified, with multidrug resistance genes as the majority. MGEs including plasmids, integrons, transposons, and insertion sequences were abundantly present in mariculture waters. The co-occurrence network pattern between pathogenome, antibiotic resistome, and mobilome suggested that most of pathogens may be potential multidrug resistant hosts, possibly due to high frequency of horizontal gene transfer. These findings increase our understanding of mariculture waters as reservoirs of antibiotic resistome and mobilome, and as yet another hotbed for creation and transfer of new antibiotic-resistant pathogenome.
Collapse
Affiliation(s)
- Yiwei Cai
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Chunliang Chen
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tong Sun
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Wanjun Wang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Huijun Zhao
- Centre for Clean Environment and Energy, and Griffith School of Environment, Gold Coast Campus, Griffith University, Queensland 4222, Australia
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development (Department of Education), School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| |
Collapse
|
2
|
Huang T, Wang Y, Wang X, Ma L, Yang X. Discrepant diversity patterns and function of bacterial and fungal communities on an earthquake-prone mountain gradient in Northwest Sichuan, China. Front Microbiol 2023; 14:1217925. [PMID: 37675421 PMCID: PMC10477999 DOI: 10.3389/fmicb.2023.1217925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023] Open
Abstract
Patterns of microbial diversity on elevational gradients have been extensively studied, but little is known about those patterns during the restoration of earthquake-fractured alpine ecosystems. In this study, soil properties, soil enzyme activities, abundance and diversity of soil bacterial and fungal communities at four positions along a 2.6-km elevational gradient in the Snow Treasure Summit National Nature Reserve, located in Pingwu County, Southwest China. Although there were no significant changes in the soil chemical environment, bacterial and fungal communities were significantly different at different elevations. The overall fungal community presented an N-shaped diversity pattern with increasing elevation, while bacterial diversity decreased significantly with elevation. Changes in microbial diversity were associated with soil phosphorus, plant litter, and variations in dominant microbial taxa. Differences in enzyme activities among elevations were regulated by microbial communities, with changes in catalase and acid phosphatase activities mainly controlled by Acidobacteria and Planctomycetaceae bacteria, respectively (catalase: p < 0.001; acid phosphatase: p < 0.01), and those in β-glucosidase, sucrase, and urease activities mainly controlled by fungi. The β-glucosidase and sucrase were both positively correlated with Herpotrichiellaceae, and urease was positively correlated with Sebacinaceae (p < 0.05). These findings contribute to the conservation and management of mountain ecosystems in the face of changing environmental conditions. Further research can delve into the specific interactions between microbial communities, soil properties, and vegetation to gain deeper insights into the intricate ecological dynamics within earthquake-prone mountain ecosystems.
Collapse
Affiliation(s)
- Tianzhi Huang
- Key Laboratory of Ecological Safety and Protection of Sichuan Province, Mianyang Normal University, Mianyang, China
| | - Yingyan Wang
- College of Resources and Environmental Engineering, Mianyang Normal University, Mianyang, China
| | - Xuemei Wang
- College of Resources and Environmental Engineering, Mianyang Normal University, Mianyang, China
| | - Li Ma
- College of Resources and Environmental Engineering, Mianyang Normal University, Mianyang, China
| | - Xueting Yang
- Research Center of Sichuan County Economy Development, Mianyang Normal University, Mianyang, China
| |
Collapse
|
3
|
Feng J, Zeng XM, Zhang Q, Zhou XQ, Liu YR, Huang Q. Soil microbial trait-based strategies drive metabolic efficiency along an altitude gradient. ISME COMMUNICATIONS 2021; 1:71. [PMID: 36765103 PMCID: PMC9723748 DOI: 10.1038/s43705-021-00076-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 01/04/2023]
Abstract
Trait-based approaches provide a candidate framework for linking soil microbial community to ecosystem processes, yet how the trade-offs in different microbial traits regulate the community-level metabolic efficiency remains unknown. Herein we assessed the roles of the microbial taxa with particular trait strategies in mediating soil microbial metabolic efficiency along an altitude gradient on the Tibetan Plateau. Results showed that soil microbial metabolic efficiency declined with increasing altitude, as indicated by the increasing metabolic quotient (microbial respiration per unit biomass, qCO2) and decreasing carbon use efficiency (CUE). Both qCO2 and CUE were predominantly predicted by microbial physiological and taxonomic attributes after considering key environmental factors including soil pH, substrate quantity and quality. Specifically, the reduced metabolic efficiency was associated with higher investment into nutrient (particularly for phosphorus) acquisitions via enzymes. Furthermore, we identified key microbial assemblies selected by harsh environments (low substrate quality and temperature) as important predictors of metabolic efficiency. These results suggest that particular microbial assemblies adapted to nutrient limited and cold habitats, but at the expense of lower metabolic efficient at higher altitude. Our findings provide a candidate mechanism underlying community-level metabolic efficiency, which has important implications for microbial-mediated processes such as carbon dynamics under global climate changes.
Collapse
Affiliation(s)
- Jiao Feng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiao-Min Zeng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qianggong Zhang
- Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xin-Quan Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yu-Rong Liu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| |
Collapse
|
4
|
Peng H, Zhang Q, Tan B, Li M, Zhang W, Feng J. A metagenomic view of how different carbon sources enhance the aniline and simultaneous nitrogen removal capacities in the aniline degradation system. BIORESOURCE TECHNOLOGY 2021; 335:125277. [PMID: 34004561 DOI: 10.1016/j.biortech.2021.125277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/01/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
To cross nitrogen removal barrier, carbon sources (sodium succinate (Z1), sodium acetate (Z2) and glucose (Z3)) were applied in aniline degradation reactor to enrich heterotrophic nitrifiers and denitrifiers. The aniline was degraded almost completely and the nitrogen removal performance was improved in three systems. The total nitrogen (TN) removal efficiency of Z2 was the highest. The dominant bacteria were phylum Proteobacteria, class BetaProteobacteria, and genus Thauera (Z1, Z3), Leptothrix (Z2). Different aniline degrading bacteria, heterotrophic nitrifiers and denitrifiers were enriched, and Z2 had more high-abundance communities. Three systems followed the meta-cleavage pathway for the aniline degradation according to the genes annotation. Particularly, the contribution of each genus to nitrogen metabolism and aromatic compounds degradation in the Z2 was more evenly distributed, rather than relying mainly on the contribution of Thauera in Z1 and Z3 so that more functional genes related nitrogen metabolism and aniline degradation were more abundant in Z2.
Collapse
Affiliation(s)
- Haojin Peng
- School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Qian Zhang
- School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Bin Tan
- Wuhan Branch, Chengdu JiZhun FangZhong Architectural Design, Wuhan 40061, PR China.
| | - Meng Li
- School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Wenli Zhang
- School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
| | - Jiapeng Feng
- School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
| |
Collapse
|
5
|
Performance and microbial diversity of denitrifying biofilms on polyurethane foam coupled with various solid carbon sources for nitrate-rich water purification. Int Microbiol 2020; 23:405-413. [PMID: 31898031 DOI: 10.1007/s10123-019-00114-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/30/2019] [Accepted: 12/10/2019] [Indexed: 10/25/2022]
Abstract
This study investigated the performance and microbial communities of denitrifying biofilms on polyurethane foam coupled with various solid carbon sources of acid- and alkali-pretreated rice straw and rice husk. Results showed that acid and alkali-pretreated rice straw both had higher TOC release rates (0.041-0.685 mg g-1 day-1) than those of rice husk (0.019-0.160 mg g-1 day-1) over a month, while acid pretreatment of rice husk and rice straw had a much higher organics release rate than that of alkali pretreatment and non-pretreatment, respectively. Acid-pretreated rice straw achieved the most efficient TN removal performance (82.06 ± 3.65%) with the lower occurrences of NH4+-N during denitrification than that of alkali-pretreated rice straw (80.05 ± 4.12%) over more than a month operation. However, alkali pretreatment of rice husk demonstrated much more significantly efficient TN removal efficiency (80.39 ± 2.1%) than did acid pretreatment (69.59 ± 13.43%). MiSeq sequencing analysis showed that the four biofilm samples attached on polyurethane foam with the addition of pretreated rice straw or rice husk had a range of 13-15 differentially abundant phylum and 81-123 differentially abundant genera in comparison with biofilm without extra solid carbon sources, and a higher TN removal efficiency demonstrated more types of differentially abundant genera.
Collapse
|
6
|
Jiang Y, Yang K, Shang Y, Zhang H, Wei L, Wang H. Response and recovery of aerobic granular sludge to pH shock for simultaneous removal of aniline and nitrogen. CHEMOSPHERE 2019; 221:366-374. [PMID: 30641378 DOI: 10.1016/j.chemosphere.2018.12.207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 11/22/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
Considering the pH fluctuation in industrial wastewater, the response and resilience to pH shock should be investigated during aerobic granular sludge (AGS) system operation. In this work, three AGS reactors, namely R1, R2, and R3 for simultaneous removal of aniline and nitrogen were exposed to neutral, acidic, and alkaline conditions, respectively. The removal efficiency of aniline and chemical oxygen demand with pH variation was over 99.9% and 91.0%, respectively after stable in the three reactors. The aniline removal rate modestly decreased in R2 and R3 after pH varied and denitrification was slightly improved in acidic environment with average removal efficiency of 61.2%. The mature AGS could maintain settleability in R1 and R2 with 30 min sludge volume index below 35 mL g-1 but was unstable under alkaline condition. Correspondingly, the secretion of extracellular polymeric substances especially protein decreased notably in R3. The bacterial groups varied with pH shock, but some could recover after adjustment to original pH value. Proteobacteria was the predominant phylum in the three reactors and Bacteroidetes was enriched in alkaline conditions. In addition, the main functional genera such as Achromobacter, Defluviimonas, Enterobacter, Pseudomonas, and Pseudoxanthomonas, were detected in the system and were found to be responsible for reduction of aniline and nitrogen.
Collapse
Affiliation(s)
- Yu Jiang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Kai Yang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Yu Shang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Huining Zhang
- School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730000, China
| | - Li Wei
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hongyu Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China.
| |
Collapse
|
7
|
Lv ZH, Wang J, Yang GF, Feng LJ, Mu J, Zhu L, Xu XY. Underestimated effects of sediments on enhanced startup performance of biofilm systems for polluted source water pretreatment. Biodegradation 2017; 29:89-103. [DOI: 10.1007/s10532-017-9815-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 12/07/2017] [Indexed: 10/18/2022]
|