101
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Chen X, Zhao Y, Zhang C, Zhang D, Yao C, Meng Q, Zhao R, Wei Z. Speciation, toxicity mechanism and remediation ways of heavy metals during composting: A novel theoretical microbial remediation method is proposed. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 272:111109. [PMID: 32854897 DOI: 10.1016/j.jenvman.2020.111109] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 04/26/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Heavy metals (HM) pollution is a major limitation to the application of composting products. Therefore, mitigating the toxicity of HM has attracted wide attention during composting. The toxicity of HM is mainly acted on microorganisms during composting, and the toxicity of different HM speciation is obviously various. There are many pathways to change the speciation to reduce the toxicity during composting. Therefore, in this review, the speciation distribution, toxicity mechanism and remediation ways of HM during composting were discussed in order to better solve HM pollution. The microbial remediation technology holds enormous potential to remediate for HM without damaging composting, however, it is hard to extract HM. The innovation of this review was to outline microbial remediation strategies for HM during composting based on two mechanisms of microbial remediation: extracellular adsorption and intracellular sequestration, to solve the problem how to extract microbial agents from the compost. Ultimately, a novel theoretical method of microbial remediation was proposed to remove HM from the compost.
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Affiliation(s)
- Xiaomeng Chen
- College of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Yue Zhao
- College of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Chuang Zhang
- College of Life Science, Northeast Agricultural University, Harbin, 150030, China
| | - Duoying Zhang
- School of Civil Engineering, Heilongjiang University, Harbin, 150080, China
| | - Changhao Yao
- Heilongjiang Province Environmental Monitoring Centre, Harbin, 150056, China
| | - Qingqing Meng
- Heilongjiang Province Environmental Monitoring Centre, Harbin, 150056, China
| | - Ran Zhao
- Heilongjiang Province Environmental Monitoring Centre, Harbin, 150056, China
| | - Zimin Wei
- College of Life Science, Northeast Agricultural University, Harbin, 150030, China.
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102
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Ma C, Lo PK, Xu J, Li M, Jiang Z, Li G, Zhu Q, Li X, Leong SY, Li Q. Molecular mechanisms underlying lignocellulose degradation and antibiotic resistance genes removal revealed via metagenomics analysis during different agricultural wastes composting. BIORESOURCE TECHNOLOGY 2020; 314:123731. [PMID: 32615447 DOI: 10.1016/j.biortech.2020.123731] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/17/2020] [Accepted: 06/21/2020] [Indexed: 05/15/2023]
Abstract
In this study, the differences on the physico-chemical parameters, lignocellulose degradation, dynamic succession of microbial community, gene expression of carbohydrate-active enzymes and antibiotics resistance genes were compared during composting systems of bagasse pith/pig manure (BP) and manioc waste/pig manure (MW). The results revealed that biodegradation rates of organic matter, cellulose, hemicellulose and lignin (29.14%, 17.53%,45.36% and 36.48%) in BP were higher than those (15.59%, 16.74%, 41.23% and 29.77%) in MW. In addition, the relative abundance of Bacillus, Luteimonas, Clostridium, Pseudomonas, Streptomyces and expression of genes encoding carbohydrate- active enzymes in BP were higher than those in MW based on metagenomics sequencing. During composting, antibiotics and antibiotic resistance genes were substantially reduced, but the removal efficiency was divergent in the both samples. Taken together, metagenomics analysis was a potential method for evaluating lignocellulose's biodegradation process and determining the elimination of antibiotic and antibiotic resistance genes from different composting sources of biomass.
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Affiliation(s)
- Chaofan Ma
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Po Kim Lo
- Department of Petrochemical Engineering, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia
| | - Jiaqi Xu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Mingqi Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Zhiwei Jiang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Gen Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Qiuhui Zhu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Xintian Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Siew Yoong Leong
- Department of Petrochemical Engineering, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia.
| | - Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China.
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103
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Liang J, Jin Y, Wen X, Mi J, Wu Y. Adding a complex microbial agent twice to the composting of laying-hen manure promoted doxycycline degradation with a low risk on spreading tetracycline resistance genes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114202. [PMID: 32806409 DOI: 10.1016/j.envpol.2020.114202] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 06/11/2023]
Abstract
Poultry manure is a reservoir for antibiotics and antibiotic resistance genes and composting is an effective biological treatment for manure. This study explored the effect of using two methods of adding a complex microbial agent to the composting of laying-hen manure on doxycycline degradation and tetracycline resistance genes elimination. The results showed that incorporating a complex microbial agent at 0.8% (w/w) on the 0th and 11th day (group MT2) effectively degraded doxycycline with a final degradation rate of 46.83 ± 0.55%. The half-life of doxycycline in this group was 21.90 ± 0.00 days and was significantly lower than that of group MT1 (1.6% (w/w) complex microbial agent added on the 0th day) and group DT (compost without complex microbial agent). But there was no significant difference in the final degradation rate of doxycycline between group DT and group MT1. The addictive with the complex microbial agent changed the microbial community structure. Bacteroidetes, Firmicutes and Proteobacteria were the dominant phyla during composting. Aerococcus, Desemzia, Facklamia, Lactobacillus, Streptococcus, and Trichococcus were the bacteria related to the degradation of doxycycline. Moreover, the incorporation of a complex microbial agent could decrease the risk on spreading tetracycline resistance genes. The single addition promoted the elimination of tetM, whose possible hosts were Enterococcus, Lactobacillus, Staphylococcus, and Trichococcus. Adding the complex microbial agent twice promoted the elimination of tetX, which was related to the low abundance of Chryseobacterium, Flavobacterium and Neptunomonas in group MT2. Redundancy analysis showed that the bacterial community, residual doxycycline and physiochemical properties have a potential effect on the variation in tetracycline resistance genes levels. Overall, adding the complex microbial agent twice is an effective measure to degrade doxycycline.
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Affiliation(s)
- Jiadi Liang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yiman Jin
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Xin Wen
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jiandui Mi
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, 510642, Guangdong, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China; Ministry of Agriculture Key Laboratory of Tropical Agricultural Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Engineering Research Center for Disposal and Resource Utilization of Animal Wastes, Yunfu, Xinxing, 527400, China
| | - Yinbao Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, 510642, Guangdong, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, 510642, China; Ministry of Agriculture Key Laboratory of Tropical Agricultural Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Engineering Research Center for Disposal and Resource Utilization of Animal Wastes, Yunfu, Xinxing, 527400, China.
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104
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Lin H, Sun W, Yu Q, Ma J. Acidic conditions enhance the removal of sulfonamide antibiotics and antibiotic resistance determinants in swine manure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114439. [PMID: 32302890 DOI: 10.1016/j.envpol.2020.114439] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 03/13/2020] [Accepted: 03/21/2020] [Indexed: 06/11/2023]
Abstract
Manure pH may vary depending on its inherent composition or additive contents. However, the effect of pH on the fate of antibiotics and antibiotic resistance determinants in manure remains unclear. This work demonstrated that pH adjustment promoted the removal of different sulfonamide antibiotics (SAs) within swine manure under incubation conditions, which increased from 26-60.8% to 75.0-86.0% by adjusting the initial pH from neutral (7.4) to acidic (5.4-4.8). Acidification was also demonstrated to inhibit the accumulation of antibiotic resistance genes in manure during incubation. Acidified manure contained both lower absolute and relative abundances of sul1 and sul2 than those at a neutral pH like 7.4. Further investigation indicated that acidification promoted the reduction of sul genes in manure by restricting sulfonamide-resistant bacteria (SRB) proliferation and inhibiting IntI1 accumulation. Furthermore, pH adjustment significantly influenced the composition of the manure bacterial community after incubation, which increased Firmicutes and decreased Proteobacteria. Close relationships were observed between pH-induced enrichment of the Firmicutes bacterial phylum, enhanced SAs degradation, and the fates of antibiotic resistance determinants. Overall, lowering the pH of manure promotes the degradation of SAs, decreases sul genes and SRB, and inhibits horizontal sul gene transfer, which could be a simple yet highly-effective manure management option to reduce antibiotic resistance.
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Affiliation(s)
- Hui Lin
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Wanchun Sun
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Qiaogang Yu
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Junwei Ma
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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105
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Idris SB, Abdul Kadir A, Abdullah JFF, Ramanoon SZ, Basit MA, Abubakar MZZA. Pharmacokinetics of Free Oxytetracycline and Oxytetracycline Loaded Cockle Shell Calcium Carbonate-Based Nanoparticle in BALB/c Mice. Front Vet Sci 2020; 7:270. [PMID: 32613011 PMCID: PMC7308650 DOI: 10.3389/fvets.2020.00270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/22/2020] [Indexed: 11/13/2022] Open
Abstract
The development and utilization of nano-antibiotics is currently gaining attention as a possible solution to antibiotic resistance. The aim of this study was therefore to determine the pharmacokinetics of free oxytetracycline (OTC) and oxytetracycline loaded cockle shell calcium carbonate-based nanoparticle (OTC-CNP) after a single dose of intraperitoneal (IP) administration in BALB/c mice. A total of 100 female BALB/c mice divided into two groups of equal number (n = 50) were administered with 10 mg/kg OTC and OTC-CNP, respectively. Blood samples were collected before and post-administration from both groups at time 0, 5, 10, 15, and 30 min and 1, 2, 6, 24, and 48 h, and OTC plasma concentration was quantified using a validated HPLC-UV method. The pharmacokinetic parameters were analyzed using a non-compartment model. The C max values of OTC in OTC-CNP and free OTC treated group were 64.99 and 23.53 μg/ml, respectively. OTC was detected up to 24 h in the OTC-CNP group as against 1 h in the free OTC group following intraperitoneal administration. In the OTC-CNP group, the plasma elimination rate of OTC was slower while the half-life, the area under the curve, and the volume of the distribution were increased. In conclusion, the pharmacokinetic profile of OTC in the OTC-CNP group differs significantly from that of free OTC. However, further studies are necessary to determine the antibacterial efficacy of OTC-CNP for the treatment of bacterial diseases.
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Affiliation(s)
- Sherifat Banke Idris
- Department of Veterinary Preclinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia.,Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Arifah Abdul Kadir
- Department of Veterinary Preclinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jesse F F Abdullah
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | - Siti-Zubaidah Ramanoon
- Department of Farm and Exotic Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | - Muhammad Abdul Basit
- Department of Veterinary Preclinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia.,Department of Biosciences, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Md Zuki Z A Abubakar
- Department of Veterinary Preclinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
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106
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Ding LJ, Zhou XY, Zhu YG. Microbiome and antibiotic resistome in household dust from Beijing, China. ENVIRONMENT INTERNATIONAL 2020; 139:105702. [PMID: 32248025 DOI: 10.1016/j.envint.2020.105702] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/26/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
We spend ever-increasing time indoors along with urbanization; however, the geographical distribution patterns of microbiome and antibiotic resistome, and their driving forces in household environment remains poorly characterized. Here, we surveyed the bacterial and fungal communities, and the resistome in settled dust gathered from 82 homes located across Beijing, China, employing Illumina sequencing and high-throughput quantitative PCR techniques. There was no clear geographical distribution pattern in dust-related bacterial communities although a slight but significant (P < 0.05) distance-decay relationship occurred in its community similarity; by contrast, a relatively distinct geographical clustering and a stronger distance-decay relationship were observed in fungal communities at the local scale. The cross-domain (bacteria versus fungi) relationships in the microbiome of the dust samples were mostly observed as robust co-occurrence correlations. The bacterial communities were dominated by Proteobacteria and Actinobacteria phyla, with human skin, soil and plants being potential major sources. The fungal communities largely comprised potential allergens (a median 61% of the fungal sequences), with Alternaria genus within Ascomycota phylum being the most predominant taxa. The profile of dust-related bacterial communities was mainly affected by housing factors related to occupants and houseplants, while that of fungal communities was determined by georeferenced environmental factors, particularly vascular plant diversity. Additionally, a great diversity (1.96 on average for Shannon index) and normalized abundance (2.22 copies per bacterial cell on average) of antibiotic resistance genes were detected across the dust samples, with the dominance of genes resistant to vancomycin and Macrolide-Lincosamide-Streptogramin B. The resistome profile exhibited no distinct geographical pattern, and was primarily driven by certain bacterial phyla and occupancy-related factors. Overall, we underline the significance of anthropogenic impacts and house location in structuring bacterial and fungal communities inside homes, respectively, and suggest that household dust is an overlooked reservoir for antibiotic resistance.
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Affiliation(s)
- Long-Jun Ding
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xin-Yuan Zhou
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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107
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Riaz L, Wang Q, Yang Q, Li X, Yuan W. Potential of industrial composting and anaerobic digestion for the removal of antibiotics, antibiotic resistance genes and heavy metals from chicken manure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 718:137414. [PMID: 32105920 DOI: 10.1016/j.scitotenv.2020.137414] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
Composting and anaerobic digestion techniques are widely used for manure recycling, but these methods have shown conflicting results in the removal of antibiotics, antibiotic resistance genes (ARGs), and heavy metals. In the present study, anaerobically digested chicken manure and various types of composted chicken manure were investigated on an industrial scale. Antibiotics, ARGs, and heavy metals had shown inconsistent results for anaerobic digestion and composting. The different composting processes either declined or completely removed the blaCTX-M, intl1 and oqxB genes. In addition, composting processes decreased the absolute abundance of aac6'-Ib and aadA genes, while increased the absolute abundance of qnrD, sul1, and tet(A) genes. On the other hand, anaerobic digestion of chicken manure increased the absolute abundance of ere(A) and tet(A). High throughput sequencing showed that Firmicutes, Proteobacteria, Bacteroidetes, and Actinobacteria dominated the total bacterial composition of composted and anaerobically digested samples. Network analysis revealed the co-occurrence of ARGs and intl1. The redundancy analysis showed a significant correlation between some heavy metals and ARGs. Similarly, the bacterial composition showed a positive correlation with the prevalence of ARGs in treated manure. These findings suggest that bacterial community, heavy metals, and mobile genetic elements can play a significant role in the abundance and variation of ARGs during composting and anaerobic digestion. In conclusion, anaerobic digestion and composting methods at industrial scale need to be improved for the effective removal of antibiotics, ARGs and heavy metals from chicken manure.
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Affiliation(s)
- Luqman Riaz
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology (Henan Provincial Department of Science and Technology), Henan Normal University, Xinxiang 453007, China
| | - Qianqian Wang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology (Henan Provincial Department of Science and Technology), Henan Normal University, Xinxiang 453007, China
| | - Qingxiang Yang
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology (Henan Provincial Department of Science and Technology), Henan Normal University, Xinxiang 453007, China.
| | - Xunan Li
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology (Henan Provincial Department of Science and Technology), Henan Normal University, Xinxiang 453007, China
| | - Wei Yuan
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology (Henan Provincial Department of Science and Technology), Henan Normal University, Xinxiang 453007, China
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108
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Wang Q, Liu L, Hou Z, Wang L, Ma D, Yang G, Guo S, Luo J, Qi L, Luo Y. Heavy metal copper accelerates the conjugative transfer of antibiotic resistance genes in freshwater microcosms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:137055. [PMID: 32065888 DOI: 10.1016/j.scitotenv.2020.137055] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/08/2020] [Accepted: 01/31/2020] [Indexed: 05/19/2023]
Abstract
Recent studies have consistently demonstrated increasing abundances of antibiotic resistance genes (ARGs) in the absence of antibiotic use. There is a large amount of quantitative data that has correlated the elevated ARGs levels with the concentrations of heavy metals in environments with anthropogenic impact. However, the mechanisms by which heavy metals facilitate the proliferation and horizontal gene transfer of ARGs among environmental bacteria were still unknown. This study validated effects of four typical heavy metals (Cu, Cd, Pb, Zn) on the plasmid RP4 mediated conjugative transfer of ARGs in freshwater microcosms. The results suggested that the typical heavy metals including Cu, Pb and Zn would promote conjugative transfer of the plasmid RP4, and Cu (5.0 μg/L) had the greatest ability to increase conjugative transfer by 16-fold higher than the control groups. In conjugative transfer microcosms, the species of each cultivable transconjugant were isolated, and their minimum inhibitory concentrations (MICs) were assessed via antibiotic susceptibility testing. The mechanism of the increased conjugative transfer of Cu was that Cu induced cell damage and the reduced conjugative transfer of Cd was that Cd increased the content of extracellular polymers substances (EPS). This study confirms that heavy metal Cu facilitates the conjugative transfer of environmental-mediated plasmid RP4 by cell damage effect, therefore accelerating the transmission and proliferation of ARGs.
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Affiliation(s)
- Qing Wang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China; Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Lei Liu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China
| | - Zelin Hou
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Litao Wang
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Dan Ma
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Guang Yang
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Shaoyue Guo
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Jinghui Luo
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Liying Qi
- Hebei Key Laboratory of Air Pollution Cause and Impact (Preparatory), College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
| | - Yi Luo
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China.
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109
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Liu Y, Cheng D, Xue J, Weaver L, Wakelin SA, Feng Y, Li Z. Changes in microbial community structure during pig manure composting and its relationship to the fate of antibiotics and antibiotic resistance genes. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122082. [PMID: 32004835 DOI: 10.1016/j.jhazmat.2020.122082] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/30/2019] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
Animal manure containing veterinary antibiotics is a significant source of microbial antibiotic resistance genes (ARGs). Composting of animal manure with wheat straw and sawdust was explored as a means to reduce ARGs load in the final material. The effects of ciprofloxacin, oxytetracycline, sulfamerazine on the bacterial community composition, and how this then affected the removal of seven tetracycline resistance genes (TARGs), four sulfonamide resistance genes (SARGs), and two fluoroquinolone resistance genes (QARGs) were investigated. Treatments receiving either ciprofloxacin or the three mixed antibiotics had reduced bacterial alpha-diversity and displayed shifts in the abundance of Proteobacteria and Firmicutes. This demonstrated that different antibiotics played an important role in bacterial community composition. Furthermore, variation in the physicochemical properties of compost, particularly pH and temperature, was also strongly linked to shifts in bacterial composition over time. Based on network analysis, the reduction of TARGs were associated with loss of Pseudomonas, Pseudoxanthomonas, Pusillimonas, Aquamicrobium, Ureibacillus, Lysinibacillus, Bacillus and Brachybacterium during the thermophilic stage. However, QARGs and SARGs were more strongly affected by the presence of multiple antibiotics. Our results have important implications for reducing the spread of certain ARGs by controlling the composting temperature, pH or the antibiotics species used in husbandry.
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Affiliation(s)
- Yuanwang Liu
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Institute of Environmental Science and Research Ltd, Christchurch, 8041, New Zealand
| | - Dengmiao Cheng
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Jianming Xue
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China; Scion, Private Bag 29237, Christchurch, New Zealand
| | - Louise Weaver
- Institute of Environmental Science and Research Ltd, Christchurch, 8041, New Zealand
| | | | - Yao Feng
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhaojun Li
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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110
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Hu J, Yang Z, Huang Z, Li H, Wu Z, Zhang X, Qin X, Li C, Ruan M, Zhou K, Wu X, Zhang Y, Xiang Y, Huang J. Co-composting of sewage sludge and Phragmites australis using different insulating strategies. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 108:1-12. [PMID: 32334329 DOI: 10.1016/j.wasman.2020.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/16/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Insulating strategies are indispensable for laboratory-scale composting reactors, however, current insulation methods interfere with the aerobic fermentation behaviors related to composting. To address this issue, a centre-oriented real-time temperature compensation strategy was designed in this study. Five 9 L reactors (R1-R5) with different insulation strategies were used for the co-composting of dewatered sludge and Phragmites australis and compared. The process performance was assessed by monitoring the temperature, O2 and CO2 emissions, the physical-chemical properties of the composting materials were evaluated by measuring the organic matter (OM), carbon nitrogen ratio (C/N), pH, electrical conductivity (EC), and fluorescence excitation-emission matrix (EEM) spectra. And a 16S rDNA analysis was used to quantify the evolution of bacterial community. The main findings are as follows. Compared with R1 as a control, the insulating strategies can increase the maximum temperature and prolong the thermophilic phase of composting. Comparing R1 and R3 showed that real-time temperature compensation can better restore the real fermentation of the compost. The results showed that R5 had the best composting effect, reaching 69.8 °C, which was 25.1%, 29.7%, 19.3%, and 17.3% higher than R1, R2, R3, and R4, respectively, and remaining in the thermophilic phase for 4.24 d, which is 1.4, 1.5, 1.3, and 0.2 times longer than R1, R2, R3, and R4, respectively. Furthermore, it can significantly reduce the temperature difference between the centre and edge of the reactor, which improved the composting material allocation efficiency and composting process control accuracy, further providing a basis for the actual full-scale composting operation.
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Affiliation(s)
- Jiahui Hu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Zhaohui Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China.
| | - Zhongliang Huang
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Hui Li
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Zijian Wu
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Xuan Zhang
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Xiaoli Qin
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Changzhu Li
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China
| | - Min Ruan
- School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410076, PR China
| | - Kang Zhou
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China; School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410076, PR China
| | - Xikai Wu
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China; School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410076, PR China
| | - Yanru Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Yinping Xiang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Jing Huang
- Hunan Academy of Forestry and State Key Laboratory of Utilization of Woody Oil Resource, Changsha 410004, PR China.
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111
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Barrios RE, Khuntia HK, Bartelt-Hunt SL, Gilley JE, Schmidt AM, Snow DD, Li X. Fate and transport of antibiotics and antibiotic resistance genes in runoff and soil as affected by the timing of swine manure slurry application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 712:136505. [PMID: 31931227 DOI: 10.1016/j.scitotenv.2020.136505] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/29/2019] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
Land application of swine manure slurry is a common practice to supplement nutrients to soil for crop production. This practice can introduce antibiotic residues and antibiotic resistance genes (ARGs) into the environment. Field testing is critical in identifying manure management practices effective in minimizing the environmental impacts of manure-borne antibiotic and ARGs. The objective of this study was to determine how the timing of swine manure application relative to rainfall events impacts the fate and transport of antibiotics and ARGs in surface runoff and manure-amended soil. Swine manure slurry was either broadcast or injected on test plots in the field. A set of three 30-min simulated rainfall events, 24 h apart, were initiated on manured plots 1 day, 1 week, 2 weeks, or 3 weeks after the manure application. Results showed that an interval longer than 2 weeks between application and rainfall often significantly reduced the levels of antibiotics and ARGs tested in runoff with the exception of tet(X). For soil samples from broadcast plots, concentrations of two of the three antibiotics tested (lincomycin and tiamulin) decreased substantially in the first two weeks after manure application. In contrast, concentrations of most of the ARGs tested (tet(Q), tet(X), and erm(A)) in soil did not change significantly during the test period. Information obtained from the study can be beneficial in designing manure management practices and estimating the environmental loading of antibiotics and ARGs resulting from manure application.
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Affiliation(s)
- Renys E Barrios
- Department of Civil Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States
| | - Himanshu K Khuntia
- Department of Civil Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States
| | - Shannon L Bartelt-Hunt
- Department of Civil Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States
| | - John E Gilley
- USDA-ARS, Agroecosystem Management Research Unit, Lincoln, NE 68583, United States
| | - Amy M Schmidt
- Departments of Biological Systems Engineering and Animal Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, United States
| | - Daniel D Snow
- School of Natural Resources, Water Sciences Laboratory, University of Nebraska-Lincoln, Lincoln, NE 68583, United States
| | - Xu Li
- Department of Civil Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, United States.
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112
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Zhong XZ, Zeng Y, Wang SP, Sun ZY, Tang YQ, Kida K. Insight into the microbiology of nitrogen cycle in the dairy manure composting process revealed by combining high-throughput sequencing and quantitative PCR. BIORESOURCE TECHNOLOGY 2020; 301:122760. [PMID: 31972401 DOI: 10.1016/j.biortech.2020.122760] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
Nitrogen cycling during composting process is not yet fully understood. This study explored the key genes involved in nitrogen cycling during dairy manure composting process using high-throughput sequencing and quantitative PCR technologies. Results showed that nitrogen fixation occurred mainly during the thermophilic and cooling phases, and significantly enhanced the nitrogen content of compost. Thermoclostridium stercorarium was the main diazotroph. Ammonia oxidation occurred during the maturation phase and Nitrosomonas sp. was the most abundant ammonia oxidizing bacteria. Denitrification contributed to the greatest nitrogen loss during the composting process. The nirK community was dominated by Luteimonas sp. and Achromobacter sp., while the nirS community was dominated by Alcaligenes faecalis and Pseudomonas stutzeri. The nosZ community varied in a succession of Halomonas ilicicola, Pseudomonas flexibili and Labrenzia alba dominated communities according to different composting phases. Based on these results, nitrogen cycling models for different phases of the dairy manure composting process were established.
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Affiliation(s)
- Xiao-Zhong Zhong
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China
| | - Yan Zeng
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China
| | - Shi-Peng Wang
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China
| | - Zhao-Yong Sun
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China.
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China
| | - Kenji Kida
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, China
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113
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Shen X, Jin G, Zhao Y, Shao X. Prevalence and distribution analysis of antibiotic resistance genes in a large-scale aquaculture environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:134626. [PMID: 31812375 DOI: 10.1016/j.scitotenv.2019.134626] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 09/22/2019] [Accepted: 09/22/2019] [Indexed: 06/10/2023]
Abstract
This study examined the profiles of antibiotic resistance genes (ARGs) in water and sediments from one large-scale freshwater pond farming system. A qPCR array was used to quantify ARGs (16S, Tetx, Tetw, TetG, Intll, and Sull) and microbial community structure was analyzed by 16S rRNA gene sequencing. A large number of ARGs (2 8 8) were detected. The ARG richness of the sediments was significantly higher than that of water and an average of 15 more genes were detected (p < 0.01). Sediment samples showed significantly higher taxonomic diversity and higher abundance of Gammaproteobacteria, Betaproteobacteria, and Flavobacteria. A significant correlation was observed between antibiotic resistance genes and breeding periods. The taxonomic diversity of the samples in ponds was significantly higher than that in ditch samples (p < 0.05), suggesting that pond farming systems could act as a local reservoir to spread ARGs into aquatic environments of rural communities.
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Affiliation(s)
- Xiaoxiao Shen
- College of Agricultural Engineering, HoHai University, Nanjing, 210098, PR China
| | - Guangqiu Jin
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, PR China
| | - Yongjun Zhao
- College of Biological Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China.
| | - Xiaohou Shao
- College of Agricultural Engineering, HoHai University, Nanjing, 210098, PR China.
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114
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Zhang L, Li L, Sha G, Liu C, Wang Z, Wang L. Aerobic composting as an effective cow manure management strategy for reducing the dissemination of antibiotic resistance genes: An integrated meta-omics study. JOURNAL OF HAZARDOUS MATERIALS 2020; 386:121895. [PMID: 31884359 DOI: 10.1016/j.jhazmat.2019.121895] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/27/2019] [Accepted: 12/12/2019] [Indexed: 05/12/2023]
Abstract
Livestock manure is considered as an important source for spreading antibiotic resistance genes (ARGs) into the environment, and therefore poses a direct threat to public health. Whereas the effects of reused manure on soil microbial communities and ARGs have been studied extensively, comprehensive characterizations of microbial communities and ARGs of manure produced by different management methods are not well understood. Here, we analyzed the fate of microbial communities and ARGs of cow manure treated by three conventional management strategies: aerobic composting, mechanical drying and precipitation, applying an integrated-omics approach combining metagenomics and metaproteomics. Integrated-omics demonstrated that composted manure contained the lowest diversity of microbial community and ARGs compared with manure treated by other two strategies. Quantitative PCR methods revealed that the abundances of ARGs were reduced by over 83 % after composting for 14 days, regardless of the season. Besides, the potential ARG hosts Acinetobacter and Pseudomonas dominating mechanical drying process were sharply decreased in abundances after composting. The significant co-occurrence networks among bacteria, ARGs and transposase gene tnpA-01 in composting samples indicated the important role of these bacteria in the dissemination of ARGs. These findings offer insight into potential strategies to control the spread of ARGs during livestock manure reuse.
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Affiliation(s)
- Lili Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong 250100, China; School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lijuan Li
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong 250100, China
| | - Guomeng Sha
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong 250100, China
| | - Chongxuan Liu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zhiheng Wang
- Shandong Fuhang New Energy Environmental Protection Technology Co., Ltd, Dezhou, Shandong 253000, China
| | - Lushan Wang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong 250100, China.
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115
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Fan H, Wu S, Woodley J, Zhuang G, Bai Z, Xu S, Wang X, Zhuang X. Effective removal of antibiotic resistance genes and potential links with archaeal communities during vacuum-type composting and positive-pressure composting. J Environ Sci (China) 2020; 89:277-286. [PMID: 31892399 DOI: 10.1016/j.jes.2019.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
As a major reservoir of antibiotics, animal manure contributes a lot to the augmented environmental pressure of antibiotic resistance genes (ARGs). This might be the first study to explore the effects of different ventilation types on the control of ARGs and to identify the relationships between archaeal communities and ARGs during the composting of dairy manure. Several ARGs were quantified via Real-time qPCR and microbial communities including bacteria and archaea were analyzed by High-throughput sequencing during vacuum-type composting (VTC) and positive-pressure composting (PPC). The total detected ARGs and class I integrase gene (intI1) under VTC were significantly lower than that under PPC during each stage of the composting (p<0.001). The relative abundance of potential human pathogenic bacteria (HPB) which were identified based on sequencing information and correlation analysis decreased by 74.6% and 91.4% at the end of PPC and VTC, respectively. The composition of archaeal communities indicated that methane-producing archaea including Methanobrevibacter, Methanocorpusculum and Methanosphaera were dominant throughout the composting. Redundancy analysis suggested that Methanobrevibacter and Methanocorpusculum were positively correlated with all of the detected ARGs. Network analysis determined that the possible hosts of ARGs were different under VTC and PPC, and provided new sights about potential links between archaea and ARGs. Our results showed better performance of VTC in reducing ARGs and potential HPB and demonstrated that some archaea could also be influential hosts of ARGs, and caution the risks of archaea carrying ARGs.
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Affiliation(s)
- Haonan Fan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shanghua Wu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - John Woodley
- Center for Process Engineering and Technology, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Guoqiang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihui Bai
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengjun Xu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuan Wang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - Xuliang Zhuang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
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116
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Chen Z, Wu Y, Wen Q, Ni H, Chai C. Effects of multiple antibiotics on greenhouse gas and ammonia emissions during swine manure composting. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:7289-7298. [PMID: 31884542 DOI: 10.1007/s11356-019-07269-2] [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: 07/15/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
Antibiotics are commonly used in intensive farming, leading to multiple antibiotic residue in livestock waste. However, the effects of multiple antibiotics on the emissions of greenhouse gas and ammonia remain indistinct. This paper selects sulfamethoxazole and norfloxacin to represent two different types of antibiotics to explore their effects on gaseous emissions. Four treatments including CK (control), SMZ (spiked with 5 mg kg-1 DW sulfamethoxazole), NOR (spiked with 5 mg kg-1 DW norfloxacin), and SN (spiked with 5 mg kg-1 DW sulfamethoxazole and 5 mg kg-1 DW norfloxacin) were composted for 65 days. Coexistence of sulfamethoxazole and norfloxacin facilitated the biodegradation of organic carbon, and significantly (p < 0.05) increased the cumulative CO2 emission by 31.9%. The cumulative CH4 emissions were decreased by 6.19%, 23.7%, and 27.6% for SMZ, NOR, and SN, respectively. The total NH3 volatilization in SMZ and NOR rose to 1020 and 1190 mg kg-1 DW, respectively. The individual existence of sulfamethoxazole significantly (p < 0.05) ascended the N2O emission rate in the first 7 days due to the increase of NO2--N content. In addition, coexistence of sulfamethoxazole and norfloxacin notably dropped the total greenhouse gas emission (subtracting CO2) by 15.5%.
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Affiliation(s)
- Zhiqiang Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, China
| | - Yiqi Wu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, China
| | - Qinxue Wen
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, China.
| | - Hongwei Ni
- Institute of Natural Resources and Ecology, Heilongjiang Academy of Sciences, Harbin, 150040, Heilongjiang, China
| | - Chunrong Chai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, China
- Institute of Natural Resources and Ecology, Heilongjiang Academy of Sciences, Harbin, 150040, Heilongjiang, China
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117
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Li H, Cheng W, Li B, Xu Y, Zheng X. The fate of antibiotic resistance genes during co-composting of swine manure with cauliflower and corn straw. BIORESOURCE TECHNOLOGY 2020; 300:122669. [PMID: 31891854 DOI: 10.1016/j.biortech.2019.122669] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/20/2019] [Accepted: 12/22/2019] [Indexed: 06/10/2023]
Abstract
Composting is not completely effective in reducing antibiotic resistance genes (ARGs) in animal manure. This work studied the effects of different treatment conditions on the fate of ARGs in composting swine manure with cauliflower and corn straw as bulking agents. The results showed that the addition of microbial agents or the ratio of corn stalks to cauliflower (1:12) could significantly decrease the absolute abundances of most ARGs (an average of 480 times) compared with the control treatment. Principal component analysis indicated that bacterial communities were significantly correlated with ARG abundance, suggesting that microbial communities have an impact on ARG variation during co-composting. Redundancy and Network analysis confirmed the changing patterns of individual ARGs (qnrS, blaAmpC, blaTEM-1) were influenced by the selectivity of host bacteria (Pseudomonas, Klebsiella, and Halocella) and environmental variables (TN, NH3-N, TOC, and pH). These findings helped to optimize composting conditions, thereby reducing the risk of ARGs spread.
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Affiliation(s)
- Houyu Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Weimin Cheng
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Bihan Li
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Yan Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
| | - Xiangqun Zheng
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
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118
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Cheng D, Hao Ngo H, Guo W, Wang Chang S, Duc Nguyen D, Liu Y, Zhang X, Shan X, Liu Y. Contribution of antibiotics to the fate of antibiotic resistance genes in anaerobic treatment processes of swine wastewater: A review. BIORESOURCE TECHNOLOGY 2020; 299:122654. [PMID: 31917094 DOI: 10.1016/j.biortech.2019.122654] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Antibiotic resistance genes (ARGs) in water environment have become a global health concern. Swine wastewater is widely considered to be one of the major contributors for promoting the proliferation of ARGs in water environments. This paper comprehensively reviews and discusses the occurrence and removal of ARGs in anaerobic treatment of swine wastewater, and contributions of antibiotics to the fate of ARGs. The results reveal that ARGs' removal is unstable during anaerobic processes, which negatively associated with the presence of antibiotics. The abundance of bacteria carrying ARGs increases with the addition of antibiotics and results in the spread of ARGs. The positive relationship was found between antibiotics and the abundance and transfer of ARGs in this review. However, it is necessary to understand the correlation among antibiotics, ARGs and microbial communities, and obtain more knowledge about controlling the dissemination of ARGs in the environment.
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Affiliation(s)
- Dongle Cheng
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia; Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea.
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia; Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
| | - Soon Wang Chang
- Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea; Institution of Research and Development, Duy Tan University, Da Nang, Viet Nam; NTT Institute of Hi-Technology, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam
| | - Yiwen Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
| | - Xue Shan
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
| | - Yi Liu
- Department of Environmental Science and Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China
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119
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Guo H, Gu J, Wang X, Nasir M, Yu J, Lei L, Wang J, Zhao W, Dai X. Beneficial effects of bacterial agent/bentonite on nitrogen transformation and microbial community dynamics during aerobic composting of pig manure. BIORESOURCE TECHNOLOGY 2020; 298:122384. [PMID: 31839495 DOI: 10.1016/j.biortech.2019.122384] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/31/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the effects of adding a bacterial agent (B) and bentonite (BT) on nitrogen transformation, nitrogen functional genes, and the microbial community dynamics during the aerobic composting of pig manure, as well as their contributions to NH3 and N2O emissions. Treatments B, BT, and BT + B reduced the NH3 emissions by 31.34%, 18.82%, and 23.67%, respectively, and the N2O emissions by 53.16%, 72.56%, and 63.41%. N2O and NH3 emissions were strongly related to the functional genes. Adding bacterial agent promoted the ammonia oxidation process to reduce NH3 emissions, whereas the influence of bentonite on nitrogen conversion was mostly related to nirS and nirK in denitrification processes. Nitrification and denitrification were dominated by different functional microorganisms in various stages of composting, where Proteobacteria comprised the most important denitrifying microorganisms. Thus, the additives reduced NH3 and N2O emissions by regulating nitrification and denitrification processes, and adding both was highly advantageous.
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Affiliation(s)
- Honghong Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mubasher Nasir
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jing Yu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liusheng Lei
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jia Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenya Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoxia Dai
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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120
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Oliver JP, Gooch CA, Lansing S, Schueler J, Hurst JJ, Sassoubre L, Crossette EM, Aga DS. Invited review: Fate of antibiotic residues, antibiotic-resistant bacteria, and antibiotic resistance genes in US dairy manure management systems. J Dairy Sci 2020; 103:1051-1071. [DOI: 10.3168/jds.2019-16778] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/24/2019] [Indexed: 01/03/2023]
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121
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Peng X, Cao J, Xie B, Duan M, Zhao J. Evaluation of degradation behavior over tetracycline hydrochloride by microbial electrochemical technology: Performance, kinetics, and microbial communities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109869. [PMID: 31683047 DOI: 10.1016/j.ecoenv.2019.109869] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 05/21/2023]
Abstract
Tetracycline hydrochloride (TCH), as a typical antibiotic-pollutant, is desired to enhance its removal from public environment, due to its toxicity and persistence. Microbial electrochemical technology (MET) is a series complex microorganisms-driven processes with characteristics of simultaneous wastewater treatment and electricity generation. The study was presented to evaluate the TCH removal behavior and power generation performance through the co-metabolism under constant glucose with different TCH concentrations using MET. It was found that the TCH removal efficiency arrived at 40% during the first 6 h, when TCH concentrations ranged from 1 to 50 mg/L. It was interesting that TCH degradation rate increased to a maximum of 4.15 × 10-2 h-1 with its concentrations varying from 1 to 20 mg/L, however, the further increase to 50 mg/L in TCH concentration resulted in a reverse 66% reduction. In the meantime, the generated bioelectricity declared a similar fluctuation trend with a maximum power density of 600 mW/m2 under the condition of 20 mg/L TCH co-degradation with glucose. What's more, the TCH inhibition effect fitted well with Haldane's model, indicating that the microbial electrochemical system had a better potency toward TCH toxicity than that reported (EC50 = 2.2 mg/L). Thauera as mainly functional aromatics-degrading bacteria and Bdellovibrio against bacterial pathogens, only existed in the mixed cultures with TCH and glucose, indicating extremely remarkable changes in bacterial community with TCH addition. In summary, a new approach for the anaerobic biodegradation of TCH was explored through co-metabolism with glucose using MET. The results should be useful for antibiotics wastewater disposal of containing TCH.
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Affiliation(s)
- Xinhong Peng
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (MNR), Nankai District, Tianjin, 300192, PR China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin, 300071, PR China.
| | - Junrui Cao
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (MNR), Nankai District, Tianjin, 300192, PR China
| | - Baolong Xie
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (MNR), Nankai District, Tianjin, 300192, PR China
| | - Mengshan Duan
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (MNR), Nankai District, Tianjin, 300192, PR China
| | - Jianchao Zhao
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (MNR), Nankai District, Tianjin, 300192, PR China
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de Araújo JC, de Queiroz Silva S, de Aquino SF, Freitas DL, Machado EC, Pereira AR, de Oliveira Paranhos AG, de Paula Dias C. Antibiotic Resistance, Sanitation, and Public Health. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2020. [DOI: 10.1007/698_2020_470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Yuan QB, Zhai YF, Mao BY, Schwarz C, Hu N. Fates of antibiotic resistance genes in a distributed swine wastewater treatment plant. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1565-1575. [PMID: 31004530 DOI: 10.1002/wer.1125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/04/2019] [Accepted: 04/13/2019] [Indexed: 06/09/2023]
Abstract
This study explores the prevalence, emission, and reduction of five ARGs (sulI, tetA, mphB, qnrD, and mcr-1) and integron (intI) through a distributed swine wastewater purification facility and the effluent-receiving environment. Typical metal resistance genes (MRGs), pathogenic bacterial indicators, the bacterial community, and wastewater properties were also explored to determine their effects on the fates of ARGs. Results indicated that the purification process could hardly effectively remove ARGs' prevalence. 3.1 × 104 -7.1 × 108 copies/L were present after purification, and 4%-57% of them persisted in the subsequent creek and adjacent soil. 16S rRNA sequencing suggested that the discharge of wastewater significantly changed the bacterial community in receiving creek and soil. Molecular ecological networks analysis detected the wide co-occurrence among ARGs, MRGs, and PBGs, which could further facilitate the propagation of antibiotic resistance. ARG incidence and specific bacterial genera were closely correlated, suggesting an extensive hosting relationship. Redundancy analyses showed wastewater organics and nutrients showed positive correlation to most ARGs' abundance, but negatively correlated to their relative abundance. PRACTITIONER POINTS: Fate of five ARGs and intI was studied in a swine wastewater treatment system. The treatment process could not effectively reduce ARGs' abundance. ARGs and pathogens in wastewater were transferred to the receiving creek and soil. The network analysis found wide co-occurrence among ARGs, metal resistance genes, and pathogens. Wastewater nutrients positively correlated to ARG's abundance but negatively correlated to their relative abundance.
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Affiliation(s)
- Qing-Bin Yuan
- College of Environment Science and Engineering, Nanjing Tech University, Nanjing, China
- Department of Civil and Environmental Engineering, Rice University, Houston, TX, USA
| | - Yi-Fan Zhai
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Bu-Yun Mao
- College of Environment Science and Engineering, Nanjing Tech University, Nanjing, China
| | - Cory Schwarz
- Department of Civil and Environmental Engineering, Rice University, Houston, TX, USA
| | - Nan Hu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
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Duan M, Zhang Y, Zhou B, Wang Q, Gu J, Liu G, Qin Z, Li Z. Changes in antibiotic resistance genes and mobile genetic elements during cattle manure composting after inoculation with Bacillus subtilis. BIORESOURCE TECHNOLOGY 2019; 292:122011. [PMID: 31442833 DOI: 10.1016/j.biortech.2019.122011] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/11/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
This study explored the effects of Bacillus subtilis at four levels (0, 0.5%, 1%, and 2% w/w compost) on the variations in ARGs, mobile genetic elements (MGEs), and the bacterial community during composting. The composting process had a greater impact on ARGs than Bacillus subtilis. The main ARG detected was sul1. The addition of Bacillus subtilis at 0.5% reduced the relative abundances of ARGs, MGEs, and human pathogenic bacteria (by 2-3 logs) in the mature products. Network and redundancy analyses suggested that intI1, Firmicutes, and pH were mainly responsible for the changes in ARGs, thus controlling these factors might help to inhibit the spread of ARGs.
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Affiliation(s)
- Manli Duan
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Yuhua Zhang
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Beibei Zhou
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China.
| | - Quanjiu Wang
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Guohuan Liu
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Zhenlun Qin
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Zhijian Li
- State Key Laboratory of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
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Awasthi MK, Chen H, Liu T, Awasthi SK, Wang Q, Ren X, Duan Y, Zhang Z. Respond of clay amendment in chicken manure composts to understand the antibiotic resistant bacterial diversity and its correlation with physicochemical parameters. JOURNAL OF CLEANER PRODUCTION 2019; 236:117715. [DOI: 10.1016/j.jclepro.2019.117715] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
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126
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Duan M, Gu J, Wang X, Li Y, Zhang R, Hu T, Zhou B. Factors that affect the occurrence and distribution of antibiotic resistance genes in soils from livestock and poultry farms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:114-122. [PMID: 31078018 DOI: 10.1016/j.ecoenv.2019.05.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/25/2019] [Accepted: 05/01/2019] [Indexed: 05/21/2023]
Abstract
Livestock manure is generally dumped directly onto open soil or used to enhance the soil fertility. However, there are growing concerns regarding the impact of these practices on the development and dissemination of antibiotic resistance genes (ARGs) in soil. In this study, we sampled soils treated with manure from 10 large-scale farms (pig, beef cattle, and chicken farms) and those from farmland without manure. The results showed that the abundance of ARGs was more than 2.62 times higher in the soil samples treated with livestock manure than the farmland soil without manure. The abundances of ARGs and intI1 in all samples were in the following order: pig farms > chicken farms > beef cattle farms. tetX, sul1, sul2, and tetG were the dominant ARGs in farm soil. The concentrations of tetracycline antibiotics and sulfonamide antibiotics were 0.15-4.76 mg/kg and 0-2.62 mg/kg, respectively, in the soils treated with manure, which were higher than those in farmland soils without manure. Redundancy analysis (P < 0.05) and network analysis (P < 0.01, R > 0.80) demonstrated that copper, zinc, actinomycetes, and tetracycline antibiotics were the main factors that affected the distribution of ARGs in soils treated with livestock manure.
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Affiliation(s)
- Manli Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Yang Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
| | - Ranran Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Ting Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Beibei Zhou
- State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an 710048, China
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Cai M, Ma S, Hu R, Tomberlin JK, Thomashow LS, Zheng L, Li W, Yu Z, Zhang J. Rapidly mitigating antibiotic resistant risks in chicken manure by Hermetia illucens bioconversion with intestinal microflora. Environ Microbiol 2019; 20:4051-4062. [PMID: 30318817 DOI: 10.1111/1462-2920.14450] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 08/18/2018] [Accepted: 10/11/2018] [Indexed: 12/19/2022]
Abstract
Antibiotic resistance genes (ARGs) in animal manure are an environmental concern due to naturally occurring bacteria being exposed to these wastes and developing multidrug resistance. The bioconversion of manure with fly larvae is a promising alternative for recycling these wastes while attenuating ARGs. We investigated the impact of black soldier fly (BSF, Hermetia illucens) larval bioconversion of chicken manure on the persistence of associated ARGs. Compared with traditional composting or sterile larval treatments (by 48.4% or 88.7%), non-sterile BSF larval treatments effectively reduced ARGs and integrin genes by 95.0% during 12 days, due to rapid decreases in concentrations of the genes and associated bacteria as they passed through the larval gut and were affected by intestinal microbes. After larval treatments, bacterial community composition differed significantly, with the percentage of Firmicutes possibly carrying ARGs reduced by 65.5% or more. On average, human pathogenic bacteria populations declined by 70.7%-92.9%, effectively mitigating risks of these bacteria carrying ARGs. Environmental pH, nitrogen content and antibiotic concentrations were closely related to both bacterial community composition and targeted gene attenuation in larval systems. Selective pressures of larval gut environments with intestinal microbes, larval bacteriostasis and reformulation of manure due to larval digestion contributed to ARG attenuation.
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Affiliation(s)
- Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shiteng Ma
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ruiqi Hu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | | | - Linda S Thomashow
- USDA-Agricultural Research Service, Washington State University, Pullman, WA, USA
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wu Li
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Centre of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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128
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Guo H, Gu J, Wang X, Yu J, Nasir M, Peng H, Zhang R, Hu T, Wang Q, Ma J. Responses of antibiotic and heavy metal resistance genes to bamboo charcoal and bamboo vinegar during aerobic composting. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1097-1105. [PMID: 31252107 DOI: 10.1016/j.envpol.2019.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/27/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
The application of compost in agriculture has led to the accumulation of antibiotic resistance genes (ARGs) and heavy metal resistance genes (MRGs) in the soil environment. In this study, the response of ARGs and MRGs to bamboo charcoal (BC) and bamboo vinegar (BV) during aerobic composting was investigated. Results showed that BC + BV treatment reduced the abundances of ARGs and mobile genetic elements (MGEs) during the thermophilic period, as well as achieved the lowest rebound during the cooling period. BC + BV promoted the growth of Firmicutes, thereby facilitating the thermophilic period of composting. The rebound of ARGs and MGEs can be explained by increasing the abundance of Actinobacteria and Proteobacteria at the end of composting. Composting reduced the abundances of MRGs comprising pcoA, tcrB, and cueO, whereas cusA and copA indicated the selective pressure imposed by heavy metals on bacteria. The fate of ARGs was mainly driven by MGEs, and heavy metals explained most of the variation in MRGs. Interestingly, nitrogen conversion also had an important effect on ARG and MRG profiles. Our current findings suggest that the addition of BC + BV during compost preparation is an effective method in controlling the mobility of ARGs and MRGs, thereby reducing the environmental problems.
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Affiliation(s)
- Honghong Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jing Yu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mubasher Nasir
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huiling Peng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ranran Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ting Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qianzhi Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiyue Ma
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
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129
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Xia H, Chen J, Chen X, Huang K, Wu Y. Effects of tetracycline residuals on humification, microbial profile and antibiotic resistance genes during vermicomposting of dewatered sludge. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1068-1077. [PMID: 31252104 DOI: 10.1016/j.envpol.2019.06.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 06/06/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Vermicomposting is a green technology used in the recycling of sewage sludge using the joint action of earthworms and microorganisms. Although tetracycline is present in abundance in sewage sludge, little attention has been given to its influence on vermicomposts. This study investigated the effects of different tetracycline concentrations (0, 100, 500 and 1000 mg/kg) on the decomposition of organic matter, microbial community and antibiotic resistance genes (ARGs) during vermicomposting of spiked sludge. The results showed that 100 mg/kg tetracycline could stimulate earthworms' growth, accompanied by the highest humification and decomposition rates of organic matter in the sludge. The abundance of active microbial cells and diversity decreased with the increase in tetracycline concentrations. The member of Bacteroidetes dominated in the tetracycline spiked treatments, especially in the higher concentration treatments. Compared to its counterparts, the addition of tetracycline significantly increased the abundances of ARGs (tetC, tetM, tetX, tetG and tetW) and Class 1 integron (int-1) by 4.7-186.9 folds and 4.25 folds, respectively. The genera of Bacillus and Mycobacterium were the possible bacterial pathogen hosts of ARGs enriched in tetracycline added group. This study suggests that higher concentration of tetracycline residual can modify microbial communities and increase the dissemination risk of ARGs for final sludge vermicompost.
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Affiliation(s)
- Hui Xia
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Jingyang Chen
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Xuemin Chen
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Kui Huang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China.
| | - Ying Wu
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
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130
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Hu T, Wang X, Zhen L, Gu J, Zhang K, Wang Q, Ma J, Peng H. Effects of inoculation with lignocellulose-degrading microorganisms on antibiotic resistance genes and the bacterial community during co-composting of swine manure with spent mushroom substrate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:110-118. [PMID: 31146224 DOI: 10.1016/j.envpol.2019.05.078] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/11/2019] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
Composting is usually employed to treat livestock manure, and inoculation with lignocellulose-degrading microorganisms can enhance the quality of compost. In this study, lignocellulose-degrading microorganisms were inoculated at two levels (uninoculated control = 0%, and T treatment = 10%) during co-composting of swine manure with spent mushroom substrate, and their effects on antibiotic resistance genes (ARGs) and the bacterial community were investigated. Inoculation with lignocellulose-degrading microorganisms caused greater decreases in 6/11 ARGs and 3/4 mobile genetic elements than the control. The total relative abundances of ARGs increased by 0.23 logs in the control but decreased by 0.08 logs in the T treatment after co-composting. The bacterial community was clustered according to the composting time in the two treatments, where inoculation mainly affected the bacterial community during the mesophilic phase. Redundancy analysis and network analysis showed that the bacterial community succession had important effects on the variations in ARGs. Inoculation with lignocellulose-degrading microorganisms led to the reduction of ARGs, which was significantly correlated with the abundances of potential host bacteria for ARGs. Thus, inoculation with lignocellulose-degrading microorganisms could decrease the risk of ARGs spreading and make compost products more security.
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Affiliation(s)
- Ting Hu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Shaanxi Province Institute of Microbiology, Xi'an, Shaanxi, 710043, China
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lisha Zhen
- Shaanxi Province Institute of Microbiology, Xi'an, Shaanxi, 710043, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Kaiyu Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qianzhi Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiyue Ma
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Huiling Peng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
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131
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Zhang H, He H, Chen S, Huang T, Lu K, Zhang Z, Wang R, Zhang X, Li H. Abundance of antibiotic resistance genes and their association with bacterial communities in activated sludge of wastewater treatment plants: Geographical distribution and network analysis. J Environ Sci (China) 2019; 82:24-38. [PMID: 31133267 DOI: 10.1016/j.jes.2019.02.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 05/21/2023]
Abstract
Wastewater treatment plants (WWTPs) are deemed reservoirs of antibiotic resistance genes (ARGs). Bacterial phylogeny can shape the resistome in activated sludge. However, the co-occurrence and interaction of ARGs abundance and bacterial communities in different WWTPs located at continental scales are still not comprehensively understood. Here, we applied quantitative PCR and Miseq sequence approaches to unveil the changing profiles of ARGs (sul1, sul2, tetW, tetQ, tetX), intI1 gene, and bacterial communities in 18 geographically distributed WWTPs. The results showed that the average relative abundance of sul1and sul2 genes were 2.08 × 10-1 and 1.32 × 10-1 copies/16S rRNA copies, respectively. The abundance of tetW gene was positively correlated with the Shannon diversity index (H'), while both studied sul genes had significant positive relationship with the intI1gene. The highest average relative abundances of sul1, sul2, tetX, and intI1 genes were found in south region and oxidation ditch system. Network analysis found that 16 bacterial genera co-occurred with tetW gene. Co-occurrence patterns were revealed distinct community interactions between aerobic/anoxic/aerobic and oxidation ditch systems. The redundancy analysis model plot of the bacterial community composition clearly demonstrated that the sludge samples were significant differences among those from the different geographical areas, and the shifts in bacterial community composition were correlated with ARGs. Together, these findings from the present study will highlight the potential risks of ARGs and bacterial populations carrying these ARGs, and enable the development of suitable technique to control the dissemination of ARGs from WWTPs into aquatic environments.
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Affiliation(s)
- Haihan Zhang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Huiyan He
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Shengnan Chen
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Tinglin Huang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Kuanyu Lu
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhonghui Zhang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Rong Wang
- Key Laboratory of Northwest Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xueyao Zhang
- Xi'an Environmental Monitoring Center, Xi'an 710119, China
| | - Hailong Li
- Research Institute of Applied Biology, Shanxi University, Taiyuan 030006, China
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Qian X, Gu J, Sun W, Wang X, Li H. Effects of passivators on antibiotic resistance genes and related mechanisms during composting of copper-enriched pig manure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 674:383-391. [PMID: 31005840 DOI: 10.1016/j.scitotenv.2019.04.197] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
Due to the intensive use of feed additives in livestock farming, animal manure has become a hotspot for antibiotics, heavy metals, and antibiotic resistance genes (ARGs). Unlike antibiotics, heavy metals cannot be degraded during composting and thus could pose a persistent co-selective pressure in the proliferation of antibiotic resistance. Passivators are commonly applied to immobilize metals and improve the safety of compost. However, little is known about the effects of various passivators on ARGs and mobile genetic elements (MGEs) during composting and the underlying mechanisms involved. Thus, three typical passivators (biochar, fly ash, and zeolite) were applied during the composting of copper-enriched pig manure, and their effects on ARGs, copper resistance genes, MGEs, and the bacterial communities were examined. Compared to the control, all passivator treatments reduced the abundances of at least six ARGs (tetC, tetG, tetQ, tetX, sul1, and ermB) by 0.23-1.09 logs and of two MGEs (intI1 and ISCR1) by 26-85% after composting. Biochar and fly ash also significantly reduced the abundances of intI2 and Tn914/1545. In contrast, abundances of copper resistance genes were not reduced by passivators, implying that the decreased co-selective pressure may not be a major contributor to ARG reductions in this study. Procrustes analysis and redundancy analysis demonstrated that shifts in the bacterial community determined the changes in the abundances of ARGs, and the variation in MGEs and DTPA-Cu can also partially explain the ARG variance. Overall, all of three passivators can be used to reduce the health risks associated with ARGs in livestock manure, and biochar performed the best at reducing ARGs and MGEs.
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Affiliation(s)
- Xun Qian
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Center for Microbial Ecology, Michigan State University, East Lansing, MI 48824, USA
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Wei Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haichao Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Department of Environment, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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Novoa Rama E, Bailey M, Jones DR, Gast RK, Anderson K, Brar J, Taylor R, Oliver HF, Singh M. Prevalence, Persistence, and Antimicrobial Resistance of Campylobacter spp. from Eggs and Laying Hens Housed in Five Commercial Housing Systems. Foodborne Pathog Dis 2019; 15:506-516. [PMID: 30124342 DOI: 10.1089/fpd.2017.2404] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Husbandry practices for laying hens in commercial egg production is a topic of interest from a social, economic, and regulatory standpoint. Animal welfare concerns regarding the use of conventional cages have arisen and consumer perceptions of hen welfare have led to a higher demand for cage-free eggs. The aim of this study was to assess the impact of housing systems on prevalence, persistence, and antimicrobial resistance (AMR) of Campylobacter from laying hens and shell eggs. A total of 425 samples were collected over a 10-month period from the North Carolina Layer Performance and Management Test and Campylobacter isolates were identified by serological, biochemical, and molecular tests. Genetic variability was evaluated using pulsed-field gel electrophoresis (PFGE) and AMR testing was performed. Prevalence of Campylobacter spp. ranged from 11.1% in the enrichable cages to 19.7% in the conventional systems. A greater prevalence of Campylobacter was found in the fecal swab samples from free-range birds compared with those of birds housed in the more intensive housing systems (p > 0.05). Overall, 72 isolates were confirmed as Campylobacter spp. by PCR. More than 90% of the isolates (n = 66) were identified as Campylobacter jejuni, followed by Campylobacter coli (n = 6). C. jejuni isolates displayed high levels of resistance to tetracycline (67%). Genetic variability of Campylobacter was high, with more than 20 PFGE patterns identified. Pattern "a" comprised 42% of isolates from all housing systems and was also the most persistent. This study suggests that housing systems of laying hens used for commercial shell egg production may impact the rate of Campylobacter shedding by layers. Isolation rates and tetracycline resistance levels of this pathogen are still of concern, emphasizing the need for well-implemented biosecurity measures on the farm.
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Affiliation(s)
| | - Matthew Bailey
- 1 Department of Poultry Science, University of Georgia , Athens, Georgia
| | - Deana R Jones
- 2 United States Department of Agriculture, Agricultural Research Service , Athens, Georgia
| | - Richard K Gast
- 2 United States Department of Agriculture, Agricultural Research Service , Athens, Georgia
| | - Ken Anderson
- 3 Prestage Department of Poultry Science, North Carolina State University , Raleigh, North Carolina
| | - Jagpinder Brar
- 4 Department of Food Science, Purdue University , West Lafayette, Indiana
| | - Rhonda Taylor
- 4 Department of Food Science, Purdue University , West Lafayette, Indiana
| | - Haley F Oliver
- 4 Department of Food Science, Purdue University , West Lafayette, Indiana
| | - Manpreet Singh
- 1 Department of Poultry Science, University of Georgia , Athens, Georgia
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134
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Lv G, Li Z, Elliott L, Schmidt MJ, MacWilliams MP, Zhang B. Impact of tetracycline-clay interactions on bacterial growth. JOURNAL OF HAZARDOUS MATERIALS 2019; 370:91-97. [PMID: 28954700 DOI: 10.1016/j.jhazmat.2017.09.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 08/24/2017] [Accepted: 09/16/2017] [Indexed: 06/07/2023]
Abstract
Antibiotics are extremely effective against bacterial infections due to their selective toxicity for bacteria rather than the host. Extensive use and misuse of antibiotics resulted in significant increases in antibiotic levels in aquatic and soil environments. Bacteria exposed to antibiotics with low concentrations may develop antibiotic resistance. In this study a swelling 2:1 clay mineral montmorillonite (MMT) and a non-swelling 1:1 clay mineral kaolinite were premixed with tetracycline (TC) of varying concentrations. The gram-negative bacteria Escherichia coli (E. coli) and Salmonella enterica (S. enterica) of both TC sensitive and TC resistant strains were tested for their growth in the presence TC-loaded clay minerals of different amounts and under different physico-chemical conditions. The antimicrobial activity of TC was significantly decreased in the presence of MMT. In the absence of MMT, no bacteria growth was found at a TC concentration 0.25mg/mL and above. On the contrast, in the presence of MMT, 50% growth was still found for a TC resistant E. coli at a TC concentration of 5mg/g. The influence of kaolinite was to a lesser degree. These results suggest that antimicrobial agents present in clayey soils could be responsible for possible mutation of bacteria of high antibiotic resistance.
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Affiliation(s)
- Guocheng Lv
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Zhaohui Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China; Department of Geosciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA.
| | - Lisa Elliott
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Monica J Schmidt
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Maria P MacWilliams
- Department of Biological Sciences, University of Wisconsin - Parkside, Kenosha, WI 53141-2000, USA
| | - Baogang Zhang
- School of Water Resources and Environment, China University of Geosciences Beijing, Key Laboratory of Groundwater Circulation and Evolution (China University of Geosciences Beijing), Ministry of Education, Beijing 100083, China.
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135
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Awasthi MK, Liu T, Chen H, Verma S, Duan Y, Awasthi SK, Wang Q, Ren X, Zhao J, Zhang Z. The behavior of antibiotic resistance genes and their associations with bacterial community during poultry manure composting. BIORESOURCE TECHNOLOGY 2019; 280:70-78. [PMID: 30754007 DOI: 10.1016/j.biortech.2019.02.030] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
In this paper, the influence of clay amendment on antibiotic resistance genes (ARGs) fate and their relation with bacterial diversity in poultry manure (PM) composting was evaluated. The results confirmed that 4% clay amendment was significantly reduce the relative abundances (RAs) 94% of ARGs, while higher dosage of clay blended treatments (T5 and T6) composts were observed relatively very high percentage of ARGs as compared to other clay blended treatments. Clay addition play potential role on the occurrence and distribution of ARGs during the composting by altering the overall RAs of Firmicutes and Proteobacteria, and there host bacterial species. The heat map correlation figure also indicated that reduction of ARGs was significantly associated with the alteration of microbial dynamics and physicochemical parameters during the composting. Therefore, the addition of 4% clay in to PM composting system could efficiently mitigate the greater concentration of ARGs in PM compost and also environmental risk associated with its application.
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Affiliation(s)
- Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Shivpal Verma
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Quan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Xiuna Ren
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Junchao Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
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136
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Liao H, Friman VP, Geisen S, Zhao Q, Cui P, Lu X, Chen Z, Yu Z, Zhou S. Horizontal gene transfer and shifts in linked bacterial community composition are associated with maintenance of antibiotic resistance genes during food waste composting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 660:841-850. [PMID: 30743970 DOI: 10.1016/j.scitotenv.2018.12.353] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 12/02/2018] [Accepted: 12/23/2018] [Indexed: 06/09/2023]
Abstract
About 1.3 billion tons of food waste (FW) is annually produced at a global scale. A major fraction of FW is deposited into landfills thereby contributing to environmental pollution and emission of greenhouse gasses. While increasing amounts of FW are recycled more sustainably into fertilizers in industrial-scale composting, very little is known about the antibiotic resistance genes (ARGs) present in FW and how their abundance is affected by composting. To study this, we quantified the diversity and abundance of ARGs, mobile genetic elements (MGEs) and bacterial communities in the beginning, during and at the end of the FW composting. All targeted 27 ARGs and 5 MGEs were detected in every sample suggesting that composted FW remains a reservoir of ARGs and MGEs. While the composting drastically changed the abundance, composition and diversity of bacterial communities, an increase in total ARG and MGE abundances was observed. Changes in ARGs were linked with shifts in the composition of bacterial communities as revealed by a Procrustes analysis (P < 0.01). Crucially, even though the high composting temperatures reduced the abundance and diversity of initially ARG-associated bacterial taxa, ARG abundances were maintained in other associated bacterial taxa. This was likely driven by horizontal gene transfer and physicochemical composting properties as revealed by a clear positive correlation between ARGs, MGEs, pH, NO3- and moisture. Together our findings suggest that traditional composting is not efficient at removing ARGs and MGEs from FW. More effective composting strategies are thus needed to minimize ARG release from composted FW into agricultural environments.
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Affiliation(s)
- Hanpeng Liao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ville-Petri Friman
- Department of Biology, Wentworth Way, YO10 5DD, University of York, York, UK
| | - Stefan Geisen
- Department of Terrestrial Ecology, Netherlands Institute of Ecology, Wageningen, Netherlands
| | - Qian Zhao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Peng Cui
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaomei Lu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhi Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhen Yu
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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137
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Dharmarha V, Guron G, Boyer RR, Niemira BA, Pruden A, Strawn LK, Ponder MA. Gamma Irradiation Influences the Survival and Regrowth of Antibiotic-Resistant Bacteria and Antibiotic-Resistance Genes on Romaine Lettuce. Front Microbiol 2019; 10:710. [PMID: 31024491 PMCID: PMC6465624 DOI: 10.3389/fmicb.2019.00710] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/21/2019] [Indexed: 02/01/2023] Open
Abstract
Contamination of romaine lettuce with human pathogens, antibiotic-resistant bacteria (ARB), and antibiotic resistance genes (ARGs) occurs during production. Post-harvest interventions are emplaced to mitigate pathogens, but could also mitigate ARB and ARGs on vegetables. The objective of this research was to determine changes to lettuce phyllosphere microbiota, inoculated ARB, and the resistome (profile of ARGs) following washing with a sanitizer, gamma irradiation, and cold storage. To simulate potential sources of pre-harvest contamination, romaine lettuce leaves were inoculated with compost slurry containing antibiotic-resistant strains of pathogenic (Escherichia coli O157:H7) and representative of spoilage bacteria (Pseudomonas aeruginosa). Various combinations of washing with sodium hypochlorite (50 ppm free chlorine), packaging under modified atmosphere (98% nitrogen), irradiating (1.0 kGy) and storing at 4°C for 1 day versus 14 days were compared. Effects of post-harvest treatments on the resistome were profiled by shotgun metagenomic sequencing. Bacterial 16S rRNA gene amplicon sequencing was performed to determine changes to the phyllosphere microbiota. Survival and regrowth of inoculated ARB were evaluated by enumeration on selective media. Washing lettuce in water containing sanitizer was associated with reduced abundance of ARG classes that confer resistance to glycopeptides, β-lactams, phenicols, and sulfonamides (Wilcoxon, p < 0.05). Washing followed by irradiation resulted in a different resistome chiefly due to reductions in multidrug, triclosan, polymyxin, β-lactam, and quinolone ARG classes (Wilcoxon, p < 0.05). Irradiation followed by storage at 4°C for 14 days led to distinct changes to the β-diversity of the host bacteria of ARGs compared to 1 day after treatment (ANOSIM, R = 0.331; p = 0.003). Storage of washed and irradiated lettuce at 4°C for 14 days increased the relative abundance of Pseudomonadaceae and Carnobacteriaceae (Wilcoxon, p < 0.05), two groups whose presence correlated with detection of 10 ARG classes on the lettuce phyllosphere (p < 0.05). Irradiation resulted in a significant reduction (∼3.5 log CFU/g) of inoculated strains of E. coli O157:H7 and P. aeruginosa (ANOVA, p < 0.05). Results indicate that washing, irradiation and storage of modified atmosphere packaged lettuce at 4°C are effective strategies to reduce antibiotic-resistant E. coli O157:H7 and P. aeruginosa and relative abundance of various ARG classes.
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Affiliation(s)
- Vaishali Dharmarha
- Department of Food Science and Technology, Virginia Tech, Blacksburg, VA, United States
| | - Giselle Guron
- Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, United States
| | - Renee R. Boyer
- Department of Food Science and Technology, Virginia Tech, Blacksburg, VA, United States
| | - Brendan A. Niemira
- Food Safety and Intervention Technologies Research Unit, USDA-ARS Eastern Regional Research Center, Wyndmoor, PA, United States
| | - Amy Pruden
- Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA, United States
| | - Laura K. Strawn
- Department of Food Science and Technology, Virginia Tech, Blacksburg, VA, United States
| | - Monica A. Ponder
- Department of Food Science and Technology, Virginia Tech, Blacksburg, VA, United States
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138
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Awasthi MK, Chen H, Awasthi SK, Duan Y, Liu T, Pandey A, Varjani S, Zhang Z. Application of metagenomic analysis for detection of the reduction in the antibiotic resistance genes (ARGs) by the addition of clay during poultry manure composting. CHEMOSPHERE 2019; 220:137-145. [PMID: 30583205 DOI: 10.1016/j.chemosphere.2018.12.103] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/15/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
The aim of the study was to reduce relative abundance of antibiotic resistant genes (ARGs) in the poultry manure (PM) compost by adding clay and to determine the mechanism of this effect. Five doses of clay additive [at 0% (T1), 2% (T2), 4% (T3), 6% (T4), 8% (T5) and 10% (T6) based on PM dry weight] were compared to explore the mechanism of reduction in ARGs in the PM compost by the addition of clay. The results confirmed that in the initial raw PM from the breeding farm, the ARG concentrations were 1.7-3.01 times higher than that in the domestic PM. High doses of the clay additive play an important role in reduction in the ARGs and are the main factor responsible for significant variations in ARG abundance between the treatment groups. Therefore, we recommend adding high doses of clay (HDC) as an effective means to reduce the maximum percentage of ARGs in PM compost. A heat map correlation study confirmed that HDC addition during the composting process reduced the bioavailable fractions of toxic metals originating from the chicken feed and significantly impacted ARG dispersion.
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Affiliation(s)
- Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhavan, 31 Mahatma Gandhi Marg, Lucknow, 266001, Utter Pradesh, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Sector-10A, Gandhinagar, 382010, Gujarat, India
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
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139
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Sun J, Xu W, Yang P, Li N, Yuan Y, Zhang H, Wang Y, Ning X, Zhang Y, Chang K, Peng Y, Chen K. Enhanced oxytetracycline removal coupling with increased power generation using a self-sustained photo-bioelectrochemical fuel cell. CHEMOSPHERE 2019; 221:21-29. [PMID: 30634145 DOI: 10.1016/j.chemosphere.2018.12.152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
Photo-bioelectrochemical fuel cell (PBFC) represents a promising technology for enhancing removal of antibiotic pollutants while simultaneously sustainable transformation of organic wastes and solar energy into electricity. In this study, simultaneous antibiotic removal and bioelectricity generation were investigated in a PBFC with daily light/dark cycle using oxytetracycline (OTC) as a model compound of antibiotic. The specific OTC removal rate increased by 61% at an external resistance of 50 Ω compared to that in the open-circuit control, which was attributed to bioelectrochemically enhanced co-metabolic degradation in the presence of the bioanode. The OTC removal was obviously accelerated during illumination of cathode in contrast with a dark cathode due to the higher driving force for anodic bioelectrochemical reaction by using photosynthetic oxygen as cathodic electron acceptor during illumination than that using nitrate in dark. The bioelectrocatalytic activity of anodic biofilm was continuously enhanced even at an initial OTC concentration of up to 50 mg L-1. The degradation products of OTC can function as mediators to facilitate the electron transfer from bacteria to the anode, resulting in 1.2, 1.76 and 1.8 fold increase in maximum power output when 10, 30 and 50 mg L-1 OTC was fed to the bioanode, compared to the OTC-free bioanode, respectively. The OTC feeding selective enriched OTC-tolerant bacterial community capable of degrading complex organic compounds and producing electricity. The occurrence of ARGs during bioelectrochemical degradation of OTC was affected more greatly by the succession of the anodic bacterial community than the initial OTC concentration.
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Affiliation(s)
- Jian Sun
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wenjing Xu
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Ping Yang
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Nan Li
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yong Yuan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Hongguo Zhang
- Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, 510006, Guangzhou, China
| | - Yujie Wang
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xunan Ning
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yaping Zhang
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Kenlin Chang
- Institute of Environmental Engineering, National Sun Yat-sen University, Gaoxiong, 80424, Taiwan
| | - Yenping Peng
- Department of Environmental Science and Engineering, Tunghai University, Taichung, 40704, Taiwan
| | - Kufan Chen
- Department of Civil Engineering, National Chi Nan University, Nanto, 54561, Taiwan
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140
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Zhang R, Gu J, Wang X, Li Y, Liu J, Lu C, Qiu L. Response of antibiotic resistance genes abundance by graphene oxide during the anaerobic digestion of swine manure with copper pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 654:292-299. [PMID: 30445329 DOI: 10.1016/j.scitotenv.2018.11.094] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/07/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
The pollution of various environments with antibiotic resistance genes (ARGs) is an urgent problem that needs to be addressed, especially in heavy metal-polluted environments. This study investigated the responses of ARGs and mobile genetic elements (MGEs) to the addition of graphene oxide (GO) to swine manure containing a high concentration copper during anaerobic digestion. The total copy numbers of ARGs and MGEs were significantly enhanced by the pressure due to Cu. GO significantly decreased the ARG and MGE copy numbers, where the low GO concentration performed better than the high GO concentration. Network analysis showed that most of the ARGs and MGEs co-occurred and they shared the same major potential host bacteria. The contributions of different factors to ARG abundances were assessed by redundancy analysis and MGEs had the most important effect on the fate of ARGs. Thus, GO may reduce the abundance of ARGs mainly by removing MGEs.
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Affiliation(s)
- Ranran Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Li
- KLACP, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Jiayao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chunya Lu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ling Qiu
- Northwest A&F University, College of Mechanical and Electrical Engineering, Yangling, Shaanxi 712100, China
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141
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Sun J, Xu W, Yuan Y, Lu X, Kjellerup BV, Xu Z, Zhang H, Zhang Y. Bioelectrical power generation coupled with high-strength nitrogen removal using a photo-bioelectrochemical fuel cell under oxytetracycline stress. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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142
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Chen J, Yang Y, Liu Y, Tang M, Wang R, Tian Y, Jia C. Bacterial community shift and antibiotics resistant genes analysis in response to biodegradation of oxytetracycline in dual graphene modified bioelectrode microbial fuel cell. BIORESOURCE TECHNOLOGY 2019; 276:236-243. [PMID: 30640017 DOI: 10.1016/j.biortech.2019.01.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/01/2019] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
This study explored the biodegradation mechanisms of oxytetracycline (OTC/O) and electrochemical characteristics from the perspective of bacterial community shift and OTC resistance genes in dual graphene modified bioelectrode microbial fuel cell (O-D-GM-BE MFC). In phylum level, Proteobacteria was accounted to 95.04% in O-GM-BA, Proteobacteria and Bacteroidetes were accounted to 59.13% and 20.52% in O-GM-BC, which were beneficial for extracellular electron transport (EET) process and OTC biodegradation. In genus level, the most dominant bacteria in O-GM-BA were Salmonella and Trabulsiella, accounting up to 83.04%, moreover, representative exoelectrogens (Geobacter) were enriched, which contributed to OTC biodegradation and electrochemical performances; abundant degrading bacteria (Moheibacter, Comamonas, Pseudomonas, Dechloromonas, Nitrospira, Methylomicrobium, Pseudorhodoferax, Thiobacillus, Mycobacterium) were enriched in O-GM-BC, which contributed to the maximum removal efficiency of OTC; coding resistance genes of efflux pump, ribosome protective protein and modifying or passivating were all found in O-GM-BE, and this explained the OTC removal mechanisms from gene level.
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Affiliation(s)
- Junfeng Chen
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China.
| | - Yuewei Yang
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Yanyan Liu
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Meizhen Tang
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Renjun Wang
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Yuping Tian
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Chuanxing Jia
- Department of Environmental Science, School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
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143
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Wang L, Su H, Hu X, Xu Y, Xu W, Huang X, Li Z, Cao Y, Wen G. Abundance and removal of antibiotic resistance genes (ARGs) in the rearing environments of intensive shrimp aquaculture in South China. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:211-218. [PMID: 30755094 DOI: 10.1080/03601234.2018.1550310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Although research regarding antibiotic resistance genes (ARGs) in aquaculture environments has gained increasing scientific interest, further studies are required to understand the abundances and removal mechanisms of ARGs during the entire rearing period of shrimp aquaculture. Thus, in this study, abundances, distributions and removal rates of ARGs in different environmental compartments of intensive shrimp farms in South China were investigated during the entire rearing period. The results indicated that sul1 and cmlA were the predominant ARGs in the water and sediment samples. Additionally, the total abundance of ARGs was higher in shrimp pond water than in the source water and farm effluent. Moreover, sediment samples indicated significantly higher ARG abundances than water samples from the shrimp ponds (P < 0.05). Environmental factors were found to significantly affect the distribution of ARGs in shrimp rearing environments. Furthermore, stable ponds aided the removal of ARGs from shrimp pond water. This study accounted for temporal variations in ARG abundances as well as removal of ARGs in different environmental compartments during the entire shrimp rearing period. However, additional research is required to optimize the water treatment process for removal of ARGs from the aquaculture.
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Affiliation(s)
- Linglong Wang
- a National Demonstration Center for Experimental Fisheries Science Education , Shanghai Ocean University , Shanghai, P.R. China
| | - Haochang Su
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Xiaojuan Hu
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Yu Xu
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Wujie Xu
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Xiaoshuai Huang
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Zhuojia Li
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Yucheng Cao
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
| | - Guoliang Wen
- a National Demonstration Center for Experimental Fisheries Science Education , Shanghai Ocean University , Shanghai, P.R. China
- b Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fishery Ecology and Environment, Guangdong Province , South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences , Guangzhou , China
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144
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Gu J, Zhang L, Wang X, Lu C, Liu J, Liu Y, Li L, Peng J, Xue M. High-throughput analysis of the effects of different fish culture methods on antibiotic resistance gene abundances in a lake. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:5445-5453. [PMID: 30607848 DOI: 10.1007/s11356-018-3972-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
Freshwater lakes are important reservoirs for antibiotic resistance genes (ARGs). In this study, we determined the ARG profiles in water samples from Ying Lake, China, using high-throughput quantitative PCR. The high prevalence of ARGs suggested significant pollution with ARGs in the study area, where the ARG diversity and abundance were greater in an area with box-type fish farming than an area with fenced fish farming. Network analysis indicated the widespread co-occurrence of ARGs and mobile genetic elements. cphA-01, blalMP02, and blaCMY202 were identified as adequate indicator genes for estimating the total ARG abundances. Redundancy analysis indicated that changes in the microbial communities caused by variations in the physicochemical parameters with different fish culture methods mainly determined the ARGs in the lake system. Thus, analyzing the factors that affect ARGs provided novel insights into the mechanisms responsible for the maintenance and propagation of ARGs in a lake.
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Affiliation(s)
- Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Li Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Chunya Lu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jiayao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yue Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Lichan Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jiayuan Peng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Mingming Xue
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
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145
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Sun W, Gu J, Wang X, Qian X, Peng H. Solid-state anaerobic digestion facilitates the removal of antibiotic resistance genes and mobile genetic elements from cattle manure. BIORESOURCE TECHNOLOGY 2019; 274:287-295. [PMID: 30529334 DOI: 10.1016/j.biortech.2018.09.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 08/29/2018] [Accepted: 09/01/2018] [Indexed: 06/09/2023]
Abstract
Livestock manure is a hotspot for antibiotic resistance genes (ARGs). Solid-state anaerobic digestion (SAD) is a high efficiency livestock manure treatment, but the changes in ARGs and microbial communities during SAD are unknown. Therefore, thermophilic SAD (55 °C), mesophilic SAD (35 °C), and liquid anaerobic digestion (35 °C) were conducted to investigate the impacts of SAD on ARGs, mobile genetic elements, and microbial communities. Compared with liquid anaerobic digestion, SAD significantly reduced at least 7/10 ARGs and all of the mobile genetic elements considered, where the total abundance of ARG was 23.7% higher in the thermophilic SAD product than the mesophilic SAD product. Firmicutes and Proteobacteria were the main potential hosts for ARGs, and their decreased abundances were mainly responsible for the reductions in ARGs during SAD. This study demonstrated that SAD is a promising method for decreasing the ARGs risk in livestock manure.
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Affiliation(s)
- Wei Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jie Gu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xiaojuan Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xun Qian
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huiling Peng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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146
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Zhou X, Qiao M, Su JQ, Wang Y, Cao ZH, Cheng WD, Zhu YG. Turning pig manure into biochar can effectively mitigate antibiotic resistance genes as organic fertilizer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 649:902-908. [PMID: 30179818 DOI: 10.1016/j.scitotenv.2018.08.368] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/23/2018] [Accepted: 08/26/2018] [Indexed: 05/20/2023]
Abstract
The composting of fresh manure is an effective way to inactivate pathogens and reduce the levels of antibiotics and some antibiotic resistance genes (ARGs) prior to its application on agricultural land as organic fertilizer. However, some ARGs could still exist and even be enriched after composting. This study investigated whether converting composted pig manure into biochar could reduce the dissemination of ARGs into the soil in comparison with a compost amendment. We performed a pot experiment using pakchoi (Brassica chinensis), with two pig manure-based composts and the biochar derived from composted pig manure, as organic fertilizers. The distributions of the antibiotic resistome, mobile genetic elements (MGEs) and bacterial community composition in soils during cultivation were evaluated by high-throughput qPCR and Illumina sequencing. The total ARGs and MGEs abundance in the biochar-treated soils were significantly lower than those in the compost-amended soils during cultivation. The total ARGs abundance in the biochar-amended soils was similar to that in the control soils during cultivation. Thus, the dissemination of ARGs from animal waste to the environment can be effectively mitigated by converting manure into biochar.
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Affiliation(s)
- Xue Zhou
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Qiao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jian-Qiang Su
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yin Wang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Zhi-Hong Cao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Wang-Da Cheng
- Jiaxing Academy of Agricultural Sciences, Jiaxing 314016, China
| | - Yong-Guan Zhu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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147
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Liu N, Hou T, Yin H, Han L, Huang G. Effects of amoxicillin on nitrogen transformation and bacterial community succession during aerobic composting. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:258-265. [PMID: 30243248 DOI: 10.1016/j.jhazmat.2018.09.028] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/26/2018] [Accepted: 09/09/2018] [Indexed: 06/08/2023]
Abstract
This study systematically analyzed the effects of amoxicillin (AMX) on the nitrogen transformation and its corresponding functional bacterial communities by conducting two aerobic composting experiments, and AMX impact on bacterial community succession was also evaluated. It provides theoretical and methodological support for harmless composting treatment of large quantities of manure containing AMX in China and for the high-quality compost products. The results showed that AMX exerted several effects on basic physicochemical and biological compost parameters. Notably, temperature changes typically accompanying compost maturation were delayed in AMX compost, reflecting altered compost maturation kinetics and bacterial community structure. Moreover, relative to control, AMX inhibited growth and reproduction of dominant bacterial phyla Firmicutes and Bacteroidetes, with respective reductions of 17.8-26.1% and 0-7.76% in relative abundance (RA) and significantly increased Proteobacteria RA by 1.9-24.8%. Thus, AMX altered both compost bacterial community structure and succession. From the perspective of various nitrogen content changes, AMX has a significant effect on nitrogen conversion and release. Simultaneously, AMX may inhibit ammoniated and ammonia-oxidizing bacterial activity, while significantly increasing the RA of denitrifying bacteria. Indeed, during early composting with AMX, the RA of denitrifying bacteria was 1361.9-1435.0% of control, highlighting differences in nitrogen transformation and release between groups.
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Affiliation(s)
- Ning Liu
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Tao Hou
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Hongjie Yin
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Guangqun Huang
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China.
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148
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Ren S, Lu A, Guo X, Zhang Q, Wang Y, Guo X, Wang L, Zhang B. Effects of co-composting of lincomycin mycelia dregs with furfural slag on lincomycin degradation, degradation products, antibiotic resistance genes and bacterial community. BIORESOURCE TECHNOLOGY 2019; 272:83-91. [PMID: 30316195 DOI: 10.1016/j.biortech.2018.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/01/2018] [Accepted: 10/04/2018] [Indexed: 06/08/2023]
Abstract
This study explored the effects of co-composting of lincomycin mycelia dregs (LMDs) with furfural slag on variations in antibiotic resistance genes (ARGs) and the bacterial community. The results showed that more than 99% lincomycin was reduced after composting. Moreover, the total absolute and relative abundance of ARGs increased by 180 and 5 times, respectively. The gene lnuA was detected in the LMDs compost and it was proved to participate in lincomycin biodegradation based on the analysis of Pearson's correlation and the lincomycin degradation byproducts. Redundancy analysis showed the succession of the bacterial community had a greater influence than the environmental parameters (residual lincomycin, C/N, pH and temperature) on the variation of ARGs during composting. Composting was not effective in reducing most of the ARGs and intI1 and thus the LMDs compost is dangerous to the ecological environment.
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Affiliation(s)
- Shengtao Ren
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Aqian Lu
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Xiaoying Guo
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Qianqian Zhang
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Yan Wang
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Xiali Guo
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, PR China.
| | - Lianzhong Wang
- Henan Xinxiang Hua Xing Pharmaceutical Factory, Xinxiang 453731, Henan, PR China
| | - Baobao Zhang
- Henan Xinxiang Hua Xing Pharmaceutical Factory, Xinxiang 453731, Henan, PR China
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149
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Analysis of Bacterial Communities in White Clover Seeds via High-Throughput Sequencing of 16S rRNA Gene. Curr Microbiol 2018; 76:187-193. [DOI: 10.1007/s00284-018-1607-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/24/2018] [Indexed: 01/16/2023]
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150
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Guo H, Xue S, Nasir M, Lv J, Gu J. Role of Bentonite on the Mobility of Antibiotic Resistance Genes, and Microbial Community in Oxytetracycline and Cadmium Contaminated Soil. Front Microbiol 2018; 9:2722. [PMID: 30546348 PMCID: PMC6279858 DOI: 10.3389/fmicb.2018.02722] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/24/2018] [Indexed: 12/15/2022] Open
Abstract
The effects of bentonite (BT), a commonly used heavy metal deactivator, on the ARGs and microbial communities in soils and lettuce systems contaminated by heavy metals and antibiotics are unclear. A study was conducted to investigate the effect of BT on the mobility of antibiotic resistance genes in oxytetracycline and cadmium contaminated soil. Results showed that the addition of BT reduced the accumulation of OTC and ARGs in the soil and lettuce roots, but increased the abundance of ARGs in lettuce leaves, and increase the risk of human pathogenic bacteria (HPB) transferring to lettuce leaves. Redundancy analysis showed that environmental factors (OTC, H2O, SOM, and pH) were the dominant factors that influence the distribution of ARGs and intI1. Network analysis showed that Proteobacteria and Bacteroidetes were the major host bacteria which caused changes in ARGs and intI1. There were significant positive correlations between ermX and ermQ, and a large number of HPB. The co-occurrence of intl1 with some ARGs (tetC, tetG, ermQ, sul1, and sul2), may threaten human health due to the dispersion of ARGs via horizontal gene transfer.
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Affiliation(s)
- Honghong Guo
- Key Laboratory of Plant Nutrition and Agri-Environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling, China
| | - Shuhong Xue
- State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi'an University of Technology, Xi'an, China
| | - Mubasher Nasir
- Key Laboratory of Plant Nutrition and Agri-Environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling, China
| | - Jialong Lv
- Key Laboratory of Plant Nutrition and Agri-Environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling, China
| | - Jei Gu
- Key Laboratory of Plant Nutrition and Agri-Environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling, China
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