51
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Wang C, Liu H, Mu G, Lu S, Wang D, Jiang H, Sun X, Han S, Liu Y. Effects of traditional Chinese medicines on immunity and culturable gut microflora to Oncorhynchus masou. FISH & SHELLFISH IMMUNOLOGY 2019; 93:322-327. [PMID: 31352114 DOI: 10.1016/j.fsi.2019.07.071] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/15/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
The present study was conducted to evaluate the effect of dietary traditional Chinese medicines on the growth, immunity, and composition of culturable gut microflora in Oncorhynchus masou. Diets were formulated to contain no medicine (control), antitoxic decoction (A), general antiphlogistic decoction (B), or Herbae Artemisiae Capillariae decoction (C). Fish were manually fed twice daily till apparent satiation for 30 days. Compared with that in the control group, supplementation with the three kinds of Chinese herbal medicine enhanced fish growth significantly (P < 0.05). The activities of liver superoxide dismutase and glutathione peroxidase in the treatment groups were significantly higher compared with those in the control group (P < 0.05). The quantity of intestinal microflora was higher in the treatment groups compared with that in the control group. Moreover, there were some effects of dietary Chinese herbal medicine on the composition of intestinal microflora. Microflora of Pseudomonas sp., Psychrobacter sp., Microbacterium sp., Macrococcus sp., Burkholderia sp., and Arthrobacter sp. were found in the treatment groups, whereas there were none in the control group. There was a significant increase in their amounts in the treatment groups (P < 0.05). The three kinds of traditional Chinese medicines can improve the growth and immunity of Oncorhynchus masou and affect the quantity and composition of intestinal microflora.
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Affiliation(s)
- Chang'an Wang
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China.
| | - Hongbai Liu
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China.
| | - Guiqiang Mu
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
| | - Shaoxia Lu
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
| | - Di Wang
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
| | - Haibo Jiang
- College of Animal Sciences, Guizhou University, Guiyang, China
| | - Xiao Sun
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
| | - Shicheng Han
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
| | - Yang Liu
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
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52
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Ding J, Yin Y, Sun AQ, Lassen SB, Li G, Zhu D, Ke X. Effects of biochar amendments on antibiotic resistome of the soil and collembolan gut. JOURNAL OF HAZARDOUS MATERIALS 2019; 377:186-194. [PMID: 31163347 DOI: 10.1016/j.jhazmat.2019.05.089] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/26/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
A diverse array of ARGs has been detected in the guts of soil fauna residing in farmland soil. Biochar has been widely used in farmland for soil remediation and improvement of soil quality; however, the effects of biochar amendment on the gut-associated ARGs of soil fauna remain unclear. In the present study, collembolans were cultivated in soils amended with 6 types of biochars. High-throughput qPCR was used to establish ARG profiles of the collembolan guts as well as the surrounding soils. A total of 73 and 162 subtypes of ARGs were detected in the collembolan guts and soils, respectively. Biochar amendment significantly altered the ARG compositions of the collembolan guts and soils, in a biochar quality-dependent manner. However, only manure-derived biochar, which contained elevated concentrations of heavy metals, increased the relative abundance of gut-associated ARGs. Changes in the gut microbial community, MGEs and biochar properties explained 84% of the total ARG variations in the collembolan guts. The findings of this study suggested that biochar properties should receive more attention, as high doses of heavy metals in biochar could increase the abundance of ARGs in collembolan guts, thereby contributing to the spread of ARGs in the environment through collembolan movement.
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Affiliation(s)
- Jing Ding
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China
| | - Yue Yin
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China; University of the Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - An-Qi Sun
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
| | - Simon Bo Lassen
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China; Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Gang Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China
| | - Dong Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China; University of the Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China.
| | - Xin Ke
- Institute of Plant Physiology and Ecology, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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53
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Zhu D, Xiang Q, Yang XR, Ke X, O'Connor P, Zhu YG. Trophic Transfer of Antibiotic Resistance Genes in a Soil Detritus Food Chain. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:7770-7781. [PMID: 31244079 DOI: 10.1021/acs.est.9b00214] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The presence and spread of antibiotic resistance genes (ARGs) are causing substantial global public concern; however, the dispersal of ARGs in the food chain is poorly understood. Here, we experimented with a soil collembolan ( Folsomia candida)-predatory mite ( Hypoaspis aculeifer) model food chain to study trophic transfer of ARGs in a manure-contaminated soil ecosystem. Our results showed that manure amendment of soil could significantly increase ARGs in the soil collembolan microbiome. With the ARGs in the prey collembolan microbiome increasing, an increase in ARGs in the predatory mite microbiome was also observed, especially for three high abundant ARGs ( blaSHV, fosX and aph6ia). Three unique ARGs were transferred into the microbiome of the predatory mite from manure amended soil via the prey collembolan ( aac(6' )-lb(akaaacA4), yidY_mdtL and tolC). Manure amendment altered the composition and structure and reduced the diversity of the microbiomes of the prey collembolan and the predatory mite. We further reveal that bacterial communities and mobile genetic elements were two important drivers for the trophic transfer of ARGs, not just for ARGs distribution in the samples. These findings suggest that the importance of food chain transmission of ARGs for the dispersal of resistance genes in soil ecosystems may be underestimated.
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Affiliation(s)
- Dong Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Qian Xiang
- University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Xiao-Ru Yang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Xin Ke
- Institute of Plant Physiology and Ecology, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences , Shanghai 200032 , China
| | - Patrick O'Connor
- Centre for Global Food and Resources, University of Adelaide , Adelaide 5005 , Australia
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
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Olanrewaju TO, McCarron M, Dooley JSG, Arnscheidt J. Transfer of antibiotic resistance genes between Enterococcus faecalis strains in filter feeding zooplankton Daphnia magna and Daphnia pulex. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 659:1168-1175. [PMID: 31096330 DOI: 10.1016/j.scitotenv.2018.12.314] [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: 10/24/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 06/09/2023]
Abstract
Antibiotic resistant bacteria from faecal pollution sources are pervasive in aquatic environments. A facilitating role for the emergence of waterborne, multi-drug resistant bacterial pathogens has been attributed to biofiltration but had not yet been substantiated. This study investigated the effect of filtration and gut passage in Daphnia spp. on conjugal transfer of resistance genes in Enterococcus faecalis. In vivo conjugation experiments involved a vancomycin-resistant donor strain bearing a plasmid-borne vanA resistance gene, and two vancomycin-susceptible and rifampicin-resistant recipient strains in the presence of Daphnia magna or Daphnia pulex. Results showed successful transfer of the vanA resistance gene from donor to recipient; gene identity was confirmed by PCR and DNA sequencing. There was no significant difference in the number of transconjugants recovered from D. magna and D. pulex. However, transconjugant numbers differed by one order of magnitude between recipient strains. Transconjugant numbers from D. magna were also significantly different between treatments with ingestion of individual phytoplankton species before filtration of bacteria. The highest transfer efficiency calculated from excreted transconjugants was 2.5 × 10-6. This proof of concept for facilitation of horizontal gene transfer by a filter feeding organism provides evidence that Daphnia can disseminate antibiotic resistant transconjugants in the environment.
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Affiliation(s)
- Temilola O Olanrewaju
- School of Geography and Environmental Sciences, Ulster University, Cromore Road, Coleraine BT52 1SA, UK
| | - Mary McCarron
- School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine BT52 1SA, UK
| | - James S G Dooley
- School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine BT52 1SA, UK
| | - Joerg Arnscheidt
- School of Geography and Environmental Sciences, Ulster University, Cromore Road, Coleraine BT52 1SA, UK.
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55
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Sáenz JS, Marques TV, Barone RSC, Cyrino JEP, Kublik S, Nesme J, Schloter M, Rath S, Vestergaard G. Oral administration of antibiotics increased the potential mobility of bacterial resistance genes in the gut of the fish Piaractus mesopotamicus. MICROBIOME 2019; 7:24. [PMID: 30773139 PMCID: PMC6378726 DOI: 10.1186/s40168-019-0632-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/21/2019] [Indexed: 05/29/2023]
Abstract
BACKGROUND Aquaculture is on the rise worldwide, and the use of antibiotics is fostering higher production intensity. However, recent findings suggest that the use of antibiotics comes at the price of increased antibiotic resistance. Yet, the effect of the oral administration of antibiotics on the mobility of microbial resistance genes in the fish gut is not well understood. In the present study, Piaractus mesopotamicus was used as a model to evaluate the effect of the antimicrobial florfenicol on the diversity of the gut microbiome as well as antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) using a metagenomic approach. RESULTS The total relative abundance of ARGs and MGEs significantly increased during the antibiotic exposure. Additionally, phage integrases, transposases, and transposons flanking ARGs accumulated in the gut microbiome of P. mesopotamicus because of the antibiotic exposure. MGEs co-occurring with ARGs showed a significant positive correlation with the total ARGs found. Furthermore, shifts in the gut microbiome towards well-known putative pathogens such as Salmonella, Plesiomonas, and Citrobacter were observed following florfenicol treatment. Mainly Plesiomonas and Citrobacter harbored genes that code for multidrug and phenicol efflux pumps. Moreover, several genes related to RNA processing and modification, cell motility, SOS response, and extracellular structure were enriched due to the antibiotic application. The observed effects were visible during the complete application phase and disappeared at the post-exposure phase. CONCLUSIONS Our findings suggest that the oral administration of antibiotics increases the potential for MGE-mediated exchange of ARGs in the gut of fish and could contribute to the enrichment and dispersion of ARGs in aquaculture systems. Importantly, this increase in the potential for ARGs exchange could be an effect of changes in community structure and/or ARG mobilization.
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Affiliation(s)
- Johan S Sáenz
- Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | | | - Rafael Simões Coelho Barone
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - José Eurico Possebon Cyrino
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - Susanne Kublik
- Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Joseph Nesme
- Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, 85764, Germany
- Section of Microbiology, Department of Biology, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Michael Schloter
- Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, 85764, Germany.
- ZIEL - Institute for Food & Health, Technical University of Munich, 85354, Freising, Germany.
| | - Susanne Rath
- Institute of Chemistry, University of Campinas, Campinas, Brazil
| | - Gisle Vestergaard
- Comparative Microbiome Analysis, Helmholtz Zentrum München, Neuherberg, 85764, Germany
- Section of Microbiology, Department of Biology, University of Copenhagen, 2100, Copenhagen, Denmark
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56
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Butt RL, Volkoff H. Gut Microbiota and Energy Homeostasis in Fish. Front Endocrinol (Lausanne) 2019; 10:9. [PMID: 30733706 PMCID: PMC6353785 DOI: 10.3389/fendo.2019.00009] [Citation(s) in RCA: 178] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/09/2019] [Indexed: 12/25/2022] Open
Abstract
The microorganisms within the intestinal tract (termed gut microbiota) have been shown to interact with the gut-brain axis, a bidirectional communication system between the gut and the brain mediated by hormonal, immune, and neural signals. Through these interactions, the microbiota might affect behaviors, including feeding behavior, digestive/absorptive processes (e.g., by modulating intestinal motility and the intestinal barrier), metabolism, as well as the immune response, with repercussions on the energy homeostasis and health of the host. To date, research in this field has mostly focused on mammals. Studies on non-mammalian models such as fish may provide novel insights into the specific mechanisms involved in the microbiota-brain-gut axis. This review describes our current knowledge on the possible effects of microbiota on feeding, digestive processes, growth, and energy homeostasis in fish, with emphasis on the influence of brain and gut hormones, environmental factors, and inter-specific differences.
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Affiliation(s)
| | - Helene Volkoff
- Departments of Biology and Biochemistry, Memorial University of Newfoundland, St. John's, NL, Canada
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57
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Zhu D, Chen QL, Li H, Yang XR, Christie P, Ke X, Zhu YG. Land Use Influences Antibiotic Resistance in the Microbiome of Soil Collembolans Orchesellides sinensis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:14088-14098. [PMID: 30481457 DOI: 10.1021/acs.est.8b05116] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Numerous studies have investigated the composition and diversity of antibiotic resistance genes (ARGs) in multiple environments but the pattern of ARGs in field-collected soil fauna remains poorly understood. In the present study soil collembolans were collected from six sites with three different land use types (parkway land, park land, and arable land) and 285 ARGs and 10 mobile genetic elements (MGEs) in the microbiome of these "wild" collembolans were quantified by high-throughput quantitative PCR. A total of 76 unique ARGs and 5 MGEs were detected. There were significant differences between collection sites in the antibiotic resistome in the collembolans. Land use significantly altered the distribution patterns of collembolan ARGs. Thirty shared ARGs and three shared MGEs were identified. The co-occurrences of shared resistomes were largely random, and more positive relationships were found in the coassociation network. Partial redundancy analysis confirms that the changes in bacterial communities explained 27.77% of the variation in ARGs. These findings suggest that resistance genes are pervasive in the microbiome associated with the field collembolan and the activity of the collembolans may contribute to the spread and dissemination of resistance genes in the environment, an aspect of ARGs that has until now been largely overlooked.
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Affiliation(s)
- Dong Zhu
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Qing-Lin Chen
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Hu Li
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Xiao-Ru Yang
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Peter Christie
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Xin Ke
- Institute of Plant Physiology and Ecology, Shanghai Institute of Biological Sciences , Chinese Academy of Sciences , Shanghai 200032 , China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
- State Key Laboratory of Urban and Regional Ecology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
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58
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Zhu D, Zheng F, Chen QL, Yang XR, Christie P, Ke X, Zhu YG. Exposure of a Soil Collembolan to Ag Nanoparticles and AgNO 3 Disturbs Its Associated Microbiota and Lowers the Incidence of Antibiotic Resistance Genes in the Gut. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12748-12756. [PMID: 30345766 DOI: 10.1021/acs.est.8b02825] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Gut microbiota contribute to host health. Numerous recent studies have focused on the survival and reproduction of nontarget soil animals exposed to the toxicity of silver nanoparticles (AgNPs) but changes in the gut microbiota due to nanoparticle toxicity are largely unknown. Here, we examine some effects of AgNPs and silver nitrate (ionic Ag) on the gut microbiota of the common soil collembolan Folsomia candida using Illumina sequencing and concomitant changes in antibiotic resistance genes (ARGs) of the gut microbiota using high-throughput quantitative PCR. A large number of Ag accumulated in Ag-exposed individuals after 28 days and ionic Ag significantly inhibited the reproduction of the collembolan (by 19.3%). Exposure to AgNPs disturbed the composition of the collembolan gut bacterial community, resulting in dysbiosis of the gut microbiota. However, the dominant microbiota was shared among different treatments. In addition, AgNPs exposure did indeed reduce the incidence of ARGs in the collembolan gut microbiota. A weak relationship was identified between gut bacterial communities and ARG profiles. These results extend our knowledge regarding the role of the gut microbiota in assessing the soil ecotoxicology of AgNPs.
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Affiliation(s)
- Dong Zhu
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Fei Zheng
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Qing-Lin Chen
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- University of the Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Xiao-Ru Yang
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Peter Christie
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
| | - Xin Ke
- Institute of Plant Physiology and Ecology, Shanghai Institute of Biological Sciences , Chinese Academy of Sciences , Shanghai 200032 , China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health , Institute of Urban Environment, Chinese Academy of Sciences , 1799 Jimei Road , Xiamen 361021 , China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
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59
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Hong B, Ba Y, Niu L, Lou F, Zhang Z, Liu H, Pan Y, Zhao Y. A Comprehensive Research on Antibiotic Resistance Genes in Microbiota of Aquatic Animals. Front Microbiol 2018; 9:1617. [PMID: 30093887 PMCID: PMC6070771 DOI: 10.3389/fmicb.2018.01617] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/28/2018] [Indexed: 11/13/2022] Open
Abstract
The occurrence of antibiotic resistance genes (ARGs) as emerging contaminants is of continued concern for human health. Antibiotics used in aquaculture have promoted the evolution and spread of ARGs. This study aimed to investigate the occurrence of 37 ARGs conferring resistance to six classes of antibiotics in 94 aquatic animals from five cities in southeast coast of China. The results showed that floR, sulII, sulI, strB, strA, aadA, and tetS were identified as the prominent ARGs with the high detection frequencies ranging from 30.9 to 51.1% in total samples. Then relative expression amount of seven prominent ARGs quantified by qPCR, ranging from 0.003 to 0.065. The tetS was the most abundant ARG among the seven ARGs. Though aadA was the second highest detection frequency of ARGs, it was the lowest expression amount ARG. The occurrences and abundances of ARGs in freshwater aquatic animals were greater than those in marine, reflecting the discrepancy of cultivation pattern between the freshwater and marine aquaculture. Shanghai was considered as the most prevalent site with 16 ARGs, and Ningbo merely contained 9 ARGs without of β-lactam ARGs and quinolone ARGs, showing variations of ARGs with geographical location. Eight kinds of sulfonamides and one chloramphenicol residues were further measured in samples from Shanghai. Interestingly, no target antibiotics were found, but sulfonamides resistance genes (sulI, sulII) and chloramphenicol resistance genes (floR) persisted at aquatic animals in the absence of selection pressure. Our research firstly shows comprehensive information on the ARGs in skin microbiota of aquatic animals, which could provide useful information and a new insight for better understanding on the ARGs dissemination in aquatic animals.
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Affiliation(s)
- Bin Hong
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Yongbing Ba
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Li Niu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Fei Lou
- Agri-Products Quality and Safety Testing Center of Shanghai, Shanghai, China
| | - Zhaohuan Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Haiquan Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, China.,Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China.,Engineering Research Center of Food Thermal-Processing Technology, Shanghai Ocean University, Shanghai, China
| | - Yingjie Pan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, China.,Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai, China.,Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
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60
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Yang Y, Song W, Lin H, Wang W, Du L, Xing W. Antibiotics and antibiotic resistance genes in global lakes: A review and meta-analysis. ENVIRONMENT INTERNATIONAL 2018; 116:60-73. [PMID: 29653401 DOI: 10.1016/j.envint.2018.04.011] [Citation(s) in RCA: 352] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 05/17/2023]
Abstract
Lakes are an important source of freshwater, containing nearly 90% of the liquid surface fresh water worldwide. Long retention times in lakes mean pollutants from discharges slowly circulate around the lakes and may lead to high ecological risk for ecosystem and human health. In recent decades, antibiotics and antibiotic resistance genes (ARGs) have been regarded as emerging pollutants. The occurrence and distribution of antibiotics and ARGs in global freshwater lakes are summarized to show the pollution level of antibiotics and ARGs and to identify some of the potential risks to ecosystem and human health. Fifty-seven antibiotics were reported at least once in the studied lakes. Our meta-analysis shows that sulfamethoxazole, sulfamerazine, sulfameter, tetracycline, oxytetracycline, erythromycin, and roxithromycin were found at high concentrations in both lake water and lake sediment. There is no significant difference in the concentration of sulfonamides in lake water from China and that from other countries worldwide; however, there was a significant difference in quinolones. Erythromycin had the lowest predicted hazardous concentration for 5% of the species (HC5) and the highest ecological risk in lakes. There was no significant difference in the concentration of sulfonamide resistance genes (sul1 and sul2) in lake water and river water. There is surprisingly limited research on the role of aquatic biota in propagation of ARGs in freshwater lakes. As an environment that is susceptible to cumulative build-up of pollutants, lakes provide an important environment to study the fate of antibiotics and transport of ARGs with a broad range of niches including bacterial community, aquatic plants and animals.
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Affiliation(s)
- Yuyi Yang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK.
| | - Wenjuan Song
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Hui Lin
- Institute of Environmental Resources and Soil Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Weibo Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Linna Du
- Department of Agriculture and Biotechnology, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China
| | - Wei Xing
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
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Charoonnart P, Purton S, Saksmerprome V. Applications of Microalgal Biotechnology for Disease Control in Aquaculture. BIOLOGY 2018; 7:biology7020024. [PMID: 29649182 PMCID: PMC6022871 DOI: 10.3390/biology7020024] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/03/2018] [Accepted: 04/10/2018] [Indexed: 12/20/2022]
Abstract
Aquaculture industries, and in particular the farming of fish and crustaceans, are major contributors to the economy of many countries and an increasingly important component in global food supply. However, the severe impact of aquatic microbial diseases on production performance remains a challenge to these industries. This article considers the potential applications of microalgal technology in the control of such diseases. At the simplest level, microalgae offer health-promoting benefits as a nutritional supplement in feed meal because of their digestibility and high content of proteins, lipids and essential nutrients. Furthermore, some microalgal species possess natural anti-microbial compounds or contain biomolecules that can serve as immunostimulants. In addition, emerging genetic engineering technologies in microalgae offer the possibility of producing ‘functional feed additives’ in which novel and specific bioactives, such as fish growth hormones, anti-bacterials, subunit vaccines, and virus-targeted interfering RNAs, are components of the algal supplement. The evaluation of such technologies for farm applications is an important step in the future development of sustainable aquaculture.
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Affiliation(s)
- Patai Charoonnart
- Center of Excellence for Shrimp Molecular Biology and Biotechnology, Mahidol University, Bangkok 10400, Thailand.
- National Center for Genetic Engineering and Biotechnology (BIOTEC) Thailand Science Park, Pathumthani 12120, Thailand.
| | - Saul Purton
- Institute of Structural and Molecular Biology, University College London, London WC1E 6BT, UK.
| | - Vanvimon Saksmerprome
- Center of Excellence for Shrimp Molecular Biology and Biotechnology, Mahidol University, Bangkok 10400, Thailand.
- National Center for Genetic Engineering and Biotechnology (BIOTEC) Thailand Science Park, Pathumthani 12120, Thailand.
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