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Wijewardene L, Schwenker JA, Friedrichsen M, Jensen A, Löbel F, Austen T, Ulrich U, Fohrer N, Bang C, Waschina S, Hölzel CS. Selection of aquatic microbiota exposed to the herbicides flufenacet and metazachlor. Environ Microbiol 2023; 25:2972-2987. [PMID: 37994199 DOI: 10.1111/1462-2920.16535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
Herbicides are important, ubiquitous environmental contaminants, but little is known about their interaction with bacterial aquatic communities. Here, we sampled a protected natural freshwater habitat and characterised its microbiome in interaction with herbicides. We evolved the freshwater microbiomes in a microcosm assay of exposure (28 days) to flufenacet and metazachlor at environmental concentrations of 0.5, 5 and 50 μg L-1 . Inhibitory effects of herbicides were exemplarily assessed in cultured bacteria from the same pond (Pseudomonas alcaligenes, Paenibacillus amylolyticus and Microbacterium hominis). Findings were compared to long-term concentrations as provided by local authorities. Here, environmental concentrations reached up to 11 μg L-1 (flufenacet) and 76 μg L-1 (metazachlor). Bacteria were inhibited at minimum inhibitory concentrations far above these values; however, concentrations of 50 μg L-1 of flufenacet resulted in measurable growth impairment. While most herbicide-exposed microcosm assays did not differ from controls, Acidobacteria were selected at high environmental concentrations of herbicides. Alpha-diversity (e.g., taxonomic richness on phylum level) was reduced when aquatic microbiomes were exposed to 50 μg metazachlor or flufenacet. One environmental strain of P. alcaligenes showed resistance to high concentrations of flufenacet (50 g L-1 ). In total, this study reveals that ecologic imbalance due to herbicide use significantly impacts aquatic microbiomes.
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Affiliation(s)
- Lishani Wijewardene
- Faculty of Fisheries and Marine Sciences & Technology, Department of Limnology and Water Technology, University of Ruhuna, Matara, Sri Lanka
| | - Julia Anna Schwenker
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
| | - Meike Friedrichsen
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
| | - Ailina Jensen
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
| | - Franziska Löbel
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
| | - Tabea Austen
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
| | - Uta Ulrich
- Institute for Natural Resource Conservation, Department of Hydrology and Water Resources Management, Kiel University, Kiel, Germany
| | - Nicola Fohrer
- Institute for Natural Resource Conservation, Department of Hydrology and Water Resources Management, Kiel University, Kiel, Germany
| | - Corinna Bang
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - Silvio Waschina
- Institute for Human Nutrition and Food Science, Department for Nutriinformatics, Kiel University, Kiel, Germany
| | - Christina Susanne Hölzel
- Institute of Animal Breeding and Husbandry, Department for Animal Hygiene, Animal Health and Food Hygiene, Kiel University, Kiel, Germany
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Yu Y, Ding P, Qiao Y, Liu Y, Wang X, Zhang T, Ding J, Chang Y, Zhao C. The feces of sea urchins as food improves survival, growth, and resistance of small sea cucumbers Apostichopus japonicus in summer. Sci Rep 2023; 13:5361. [PMID: 37005442 PMCID: PMC10067838 DOI: 10.1038/s41598-023-32226-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 03/24/2023] [Indexed: 04/04/2023] Open
Abstract
Mass mortality and low growth highly decrease the production efficiency and sustainable aquaculture development of the sea cucumber Apostichopus japonicus in summer. Sea urchin feces was proposed to address the summer problems. A laboratory study was conducted for ~ 5 weeks to investigate survival, food consumption, growth and resistance ability of A. japonicus cultured with the feces of sea urchins fed kelp (KF feces, group KF), the feces of sea urchins fed prepared feed (FF feces, group FF), and the prepared sea cucumber feed (group S) at high temperature (25 °C). The sea cucumbers of group KF had better survival (100%) than those of the group FF (~ 84%), higher CTmax (35.9 °C) than those of the group S (34.5 °C), and the lowest skin ulceration proportion (0%) when they were exposed to an infectious solution among the three groups. These results suggest that the feces of sea urchins fed kelp is a promising diet for improving the survival and enhancing the resistance in A. japonicus aquaculture in summer. Sea cucumbers fed significantly less FF feces after 24 h of ageing than the fresh FF feces, suggesting this kind of feces became unsuitable for A. japonicus in a short time (within 48 h). However, the 24 h of ageing at 25 °C for the high fiber feces of sea urchins fed kelp had no significant effects on the fecal consumption of sea cucumbers. In the present study, both fecal diets provide better individual growth to sea cucumbers than the prepared feed. Yet, the feces of sea urchins fed kelp provided the highest weight gain rate (WGR) to sea cucumbers. Therefore, the feces of sea urchins fed kelp is a promising food to reduce the mortality, to address the problems of summer, and to achieve higher efficiency in A. japonicus aquaculture in summer.
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Affiliation(s)
- Yushi Yu
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Peng Ding
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yihai Qiao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yansong Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Xiajing Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Tongdan Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Jun Ding
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Chong Zhao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China.
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3
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Li X, Wang T, Fu B, Mu X. Improvement of aquaculture water quality by mixed Bacillus and its effects on microbial community structure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69731-69742. [PMID: 35576039 DOI: 10.1007/s11356-022-20608-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Microbial remediation, especially the application of probiotics, has recently gained popularity in improving water quality and maintaining aquatic animal health. The efficacy and mechanism of mixed Bacillus for improvement of water quality and its effects on aquatic microbial community structure remain unknown. To elucidate these issues, we applied two groups of mixed Bacillus (Bacillus megaterium and Bacillus subtilis (A0 + BS) and Bacillus megaterium and Bacillus coagulans (A0 + BC)) to the aquaculture system of Crucian carp. Our results showed that the improvement effect of mixed Bacillus A0 + BS on water quality was better than that of A0 + BC, and the NH4+-N, NO2--N, NO3--N, and total phosphorus (TP) concentrations were reduced by 46.3%, 76.3%, 35.6%, and 80.3%, respectively. In addition, both groups of mixed Bacillus increased the diversity of the bacterial community and decreased the diversity of the fungal community. Microbial community analysis showed that mixed Bacillus A0 + BS increased the relative abundance of bacteria related with nitrogen and phosphorus removal, such as Proteobacteria, Actinobacteria, Comamonas, and Stenotrophomonas, but decreased the relative abundance of pathogenic bacteria (Acinetobacter and Pseudomonas) and fungi (Epicoccum and Fusarium). Redundancy analysis showed that NH4+-N, NO2--N, and TP were the primary environmental factors affecting the microbial community in aquaculture water. PICRUST analysis indicated that all functional pathways in the A0 + BS group were richer than those in other groups. These results indicated that mixed Bacillus A0 + BS addition produced good results in reducing nitrogenous and phosphorus compounds and shaped a favorable microbial community structure to further improve water quality.
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Affiliation(s)
- Xue Li
- School of Environmental Science, Liaoning University, Shenyang, 110036, People's Republic of China
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, 100141, People's Republic of China
| | - Tianjie Wang
- School of Environmental Science, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Baorong Fu
- School of Environmental Science, Liaoning University, Shenyang, 110036, People's Republic of China.
| | - Xiyan Mu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, 100141, People's Republic of China
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Giangrande A, Licciano M, Arduini D, Borghese J, Pierri C, Trani R, Longo C, Petrocelli A, Ricci P, Alabiso G, Cavallo RA, Acquaviva MI, Narracci M, Stabili L. An Integrated Monitoring Approach to the Evaluation of the Environmental Impact of an Inshore Mariculture Plant (Mar Grande of Taranto, Ionian Sea). BIOLOGY 2022; 11:617. [PMID: 35453818 PMCID: PMC9030626 DOI: 10.3390/biology11040617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/01/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The results of an ex-ante survey aiming to assess the impact of a fish farm in the Mar Grande of Taranto (southern Italy, Mediterranean Sea) on the surrounding environment are reported. There, the implementation of an innovative IMTA plant was planned, with the goals of environment bioremediation and commercially exploitable biomass production. Analyses were conducted in February and July 2018. Both seawater and sediments were sampled at the four corners of the fish farm to detect the existing biological and physico-chemical features. The investigation was performed to identify the best area of the farming plant for positioning the bioremediating system, but also to obtain a data baseline, to compare to the environmental status after the bioremediating action. Data were also analyzed by canonical analysis of principal coordinates (CAP). All the measurements, in particular, microbiology and macrobenthic community characterization using AZTI's Marine Biotic Index (AMBI) and the Multivariate-AMBI (M-AMBI) indices, suggest that the effect of fish farm waste was concentrated and limited to a small portion of the investigated area in relation to the direction of the main current. A site named A3, which was found to be the most impacted by the aquaculture activities, especially during the summer season, was chosen to place the bioremediation system.
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Affiliation(s)
- Adriana Giangrande
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73047 Lecce, Italy; (A.G.); (M.L.); (D.A.); (J.B.); (L.S.)
| | - Margherita Licciano
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73047 Lecce, Italy; (A.G.); (M.L.); (D.A.); (J.B.); (L.S.)
| | - Daniele Arduini
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73047 Lecce, Italy; (A.G.); (M.L.); (D.A.); (J.B.); (L.S.)
| | - Jacopo Borghese
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73047 Lecce, Italy; (A.G.); (M.L.); (D.A.); (J.B.); (L.S.)
| | - Cataldo Pierri
- Department of Biology, University of Bari Aldo Moro, 70125 Bari, Italy; (C.P.); (R.T.); (C.L.)
| | - Roberta Trani
- Department of Biology, University of Bari Aldo Moro, 70125 Bari, Italy; (C.P.); (R.T.); (C.L.)
| | - Caterina Longo
- Department of Biology, University of Bari Aldo Moro, 70125 Bari, Italy; (C.P.); (R.T.); (C.L.)
| | - Antonella Petrocelli
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
| | - Patrizia Ricci
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
| | - Giorgio Alabiso
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
| | - Rosa Anna Cavallo
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
| | | | - Marcella Narracci
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
| | - Loredana Stabili
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73047 Lecce, Italy; (A.G.); (M.L.); (D.A.); (J.B.); (L.S.)
- Institute for Water Research, CNR, 74123 Taranto, Italy; (P.R.); (G.A.); (R.A.C.); (M.I.A.); (M.N.)
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5
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Stabili L, Di Salvo M, Alifano P, Talà A. An Integrative, Multiparametric Approach for the Comprehensive Assessment of Microbial Quality and Pollution in Aquaculture Systems. MICROBIAL ECOLOGY 2022; 83:271-283. [PMID: 33948706 PMCID: PMC8891192 DOI: 10.1007/s00248-021-01731-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/08/2021] [Indexed: 05/12/2023]
Abstract
As the aquaculture sector significantly expanded worldwide in the past decades, the concept of sustainable aquaculture has developed with the challenge of not only maximizing benefits but also minimizing the negative impacts on the environment assuring, at the same time, food security. In this framework, monitoring and improving the microbiological water quality and animal health are a central topic. In the present study, we evaluated the seawater microbiological quality in a mariculture system located in a Mediterranean coastal area (Northern Ionian Sea, Italy). We furnished, for the first time, a microbial inventory based on conventional culture-based methods, integrated with the 16S rRNA gene metabarcoding approach for vibrios identification and diversity analyses, and further implemented with microbial metabolic profiling data obtained from the Biolog EcoPlate system. Microbiological pollution indicators, vibrios diversity, and microbial metabolism were determined in two different times of the year (July and December). All microbial parameters measured in July were markedly increased compared to those measured in December. The presence of potentially pathogenic vibrios is discussed concerning the risk of fish disease and human infections. Thus, the microbial inventory here proposed might represent a new multiparametric approach for the suitable surveillance of the microbial quality in a mariculture system. Consequently, it could be useful for ensuring the safety of both the reared species and the consumers in the light of sustainable, eco-friendly aquaculture management.
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Affiliation(s)
- Loredana Stabili
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy.
- Water Research Institute of the National Research Council, (IRSA-CNR), Taranto, Italy.
| | - Marco Di Salvo
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - Adelfia Talà
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
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6
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Lukassen MB, Menanteau-Ledouble S, de Jonge N, Schram E, Nielsen JL. Impact of water quality parameters on geosmin levels and geosmin producers in European recirculating aquaculture systems. J Appl Microbiol 2021; 132:2475-2487. [PMID: 34773307 DOI: 10.1111/jam.15358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/03/2021] [Accepted: 11/07/2021] [Indexed: 11/28/2022]
Abstract
AIMS Geosmin is associated with off-flavour problems in recirculating aquaculture systems (RAS) and represents an economic problem for the aquaculture industry. This study aims at investigating factors influencing the composition of the bacterial microbiota, in particular the presence of geosmin producers and the environmental and farming factors favouring geosmin accumulation. METHODS AND RESULTS Several water quality parameters were correlated to the composition of the microbiota with special emphasis on the presence of geosmin producers within 26 different RAS from four European countries. Three novel groups of geosmin-producing bacteria were quantified to identify potential correlations with geosmin concentration. CONCLUSIONS The microbiome differed significantly between systems. However, phosphate levels, calcium levels and redox potential correlated to geosmin concentration in the water and the presence of the Actinomycetales geosmin-producers but not with the presence of other groups of geosmin-producing bacteria. Oxygen levels and conductivity were found to negatively correlate with geosmin concentration. A large proportion of the detected geosmin producers represented novel taxonomic groups not previously linked with this activity. SIGNIFICANCE AND IMPACT OF THE STUDY These results improve our understanding of the diversity of microbiota in RAS and the water quality parameters favouring the populations of geosmin-producing bacteria and the production of geosmin.
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Affiliation(s)
- Mie Bech Lukassen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg East, Denmark
| | | | - Nadieh de Jonge
- Department of Chemistry and Bioscience, Aalborg University, Aalborg East, Denmark
| | - Edward Schram
- Wageningen Marine Research, IJmuiden, The Netherlands
| | - Jeppe Lund Nielsen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg East, Denmark
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7
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Jing X, Su S, Zhang C, Zhu J, Hou Y, Li Z, Yang X, Zhou X, He X, Munganga BP, Tang Y, Xu P. Dynamic changes in microbial community structure in farming pond water and their effect on the intestinal microbial community profile in juvenile common carp (Cyprinus carpio L.). Genomics 2021; 113:2547-2560. [PMID: 34029696 DOI: 10.1016/j.ygeno.2021.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 05/03/2021] [Accepted: 05/19/2021] [Indexed: 11/29/2022]
Abstract
Water quality parameter dynamics, gut, sediment and water bacteria communities were studied to understand the environmental influence on the gut microbial community of a new strain of Huanghe common carp. A total of 3,384,078 raw tags and 5105 OTUs were obtained for the gut, water and sediment bacteria. The water quality had a stronger influence on the water bacteria community than gut and sediment bacteria communities. The ambient water quality parameters also significantly influenced the water and sediment bacteria communities. Comparing the gut, sediment, and water microbial communities, a relationship was found among them. However, gut bacteria were more closely related to sediment bacterial communities than to water bacteria communities. The results showed that the top three bacterial taxa were identical in gut and sediment samples in the early days of rearing. Interestingly, bacterial communities in the carp gut, water, and sediment had different adaptabilities to variations in environmental factors.
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Affiliation(s)
- Xiaojun Jing
- College of Fisheries, Huazhong Agricultural University, Wuhan, PR China; Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Shengyan Su
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, PR China
| | - Chengfeng Zhang
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Jian Zhu
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Yiran Hou
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China
| | - Zhixun Li
- Henan Academy of Fishery Sciences, Zhengzhou 2450044, PR China
| | - Xingli Yang
- Henan Academy of Fishery Sciences, Zhengzhou 2450044, PR China
| | - Xiaolin Zhou
- Henan Academy of Fishery Sciences, Zhengzhou 2450044, PR China
| | - Xugang He
- College of Fisheries, Huazhong Agricultural University, Wuhan, PR China.
| | | | - Yongkai Tang
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, PR China
| | - Pao Xu
- Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, PR China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, PR China.
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8
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Huang GQ, Tsai FS. Social Innovation for Food Security and Tourism Poverty Alleviation: Some Examples From China. Front Psychol 2021; 12:614469. [PMID: 34017277 PMCID: PMC8129493 DOI: 10.3389/fpsyg.2021.614469] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 04/06/2021] [Indexed: 12/31/2022] Open
Abstract
The COVID-19 pandemic has brought hunger to millions of people around the world. Social distancing measures coupled with national lockdowns have reduced work opportunities and the overall household incomes. Moreover, the disruption in agricultural production and supply routes is expected to continue into 2021, which may leave millions without access to food. Coincidentally, those who suffer the most are poor people. As such, food security and tourism poverty alleviation are interlinked when discussing social problems and development. While the corporate interest in tourism poverty alleviation is as old as the industrial revolution, little research has been conducted to show how social innovation can be leveraged to reinforce food security and alleviate poverty. Thus, this case study examines the food industry in rural China to establish how it conducts social innovation in food production and distribution to facilitate social development and mitigate poverty.
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Affiliation(s)
- Guo-Qing Huang
- College of Economics and Management, Southwest University, Chongqing, China
| | - Fu-Sheng Tsai
- North China University of Water Resources and Electric Power, Zhengzhou, China.,Department of Business Administration, Cheng Shiu University, Kaohsiung, Taiwan.,Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan.,Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
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9
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Patil HJ, Gatica J, Zolti A, Benet-Perelberg A, Naor A, Dror B, Al Ashhab A, Marman S, Hasan NA, Colwell RR, Sher D, Minz D, Cytryn E. Temporal Resistome and Microbial Community Dynamics in an Intensive Aquaculture Facility with Prophylactic Antimicrobial Treatment. Microorganisms 2020; 8:microorganisms8121984. [PMID: 33322131 PMCID: PMC7764744 DOI: 10.3390/microorganisms8121984] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 01/31/2023] Open
Abstract
Excessive use of antimicrobials in aquaculture is concerning, given possible environmental ramifications and the potential contribution to the spread of antimicrobial resistance (AR). In this study, we explored seasonal abundance of antimicrobial resistance genes and bacterial community composition in the water column of an intensive aquaculture pond stocked with Silver Carp (Hypophthalmichthys molitrix) prophylactically treated with sulfamethoprim (25% sulfadiazine; 5% trimethoprim), relative to an adjacent unstocked reservoir. Bacterial community composition was monitored using high-throughput sequencing of 16S rRNA gene amplicons in eight sampling profiles to determine seasonal dynamics, representing principal stages in the fish fattening cycle. In tandem, qPCR was applied to assess relative abundance of selected antimicrobial resistance genes (sul1, sul2, dfrA1, tetA and blaTEM) and class-1 integrons (int1). Concomitantly, resistomes were extrapolated from shotgun metagenomes in representative profiles. Analyses revealed increased relative abundance of sulfonamide and tetracycline resistance genes in fishpond-03, relative to pre-stocking and reservoir levels, whereas no significant differences were observed for genes encoding resistance to antimicrobials that were not used in the fishpond-03. Seasons strongly dictated bacterial community composition, with high abundance of cyanobacteria in summer and increased relative abundance of Flavobacterium in the winter. Our results indicate that prophylactic use of sulfonamides in intensive aquaculture ponds facilitates resistance suggesting that prophylactic use of these antimicrobials in aquaculture should be restricted.
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Affiliation(s)
- Hemant J. Patil
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
| | - Joao Gatica
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 91905, Israel
| | - Avihai Zolti
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 91905, Israel
| | - Ayana Benet-Perelberg
- Dor Aquaculture Research Station, Fisheries Department, Israel Ministry of Agriculture and Rural Development, Dor 3082000, Israel; (A.B.-P.); (A.N.)
| | - Alon Naor
- Dor Aquaculture Research Station, Fisheries Department, Israel Ministry of Agriculture and Rural Development, Dor 3082000, Israel; (A.B.-P.); (A.N.)
| | - Barak Dror
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 91905, Israel
| | - Ashraf Al Ashhab
- The Dead Sea and Arava Science Center, Masada 86900, Israel;
- Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel; (S.M.); (D.S.)
| | - Sophi Marman
- Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel; (S.M.); (D.S.)
| | - Nur A. Hasan
- CosmosID Inc., Rockville, MD 20742, USA; (N.A.H.); (R.R.C.)
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA
| | - Rita R. Colwell
- CosmosID Inc., Rockville, MD 20742, USA; (N.A.H.); (R.R.C.)
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA
- Maryland Pathogen Research Institute, University of Maryland, College Park, MD 20742, USA
| | - Daniel Sher
- Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel; (S.M.); (D.S.)
| | - Dror Minz
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
| | - Eddie Cytryn
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization, P.O. Box 15159, Rishon LeZion 7528809, Israel; (H.J.P.); (J.G.); (A.Z.); (B.D.); (D.M.)
- Correspondence:
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10
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Sun F, Wang C, Chen L, Weng G, Zheng Z. The intestinal bacterial community of healthy and diseased animals and its association with the aquaculture environment. Appl Microbiol Biotechnol 2019; 104:775-783. [PMID: 31781816 DOI: 10.1007/s00253-019-10236-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/24/2019] [Accepted: 11/04/2019] [Indexed: 11/24/2022]
Abstract
Although increasing levels of attention have been targeted towards aquaculture-associated bacteria, the bacterial community of animal intestines and its relationship with the aquaculture environment need to be further investigated. In this study, we used high-throughput sequencing to analyze the bacterial community of pond water, sediment, and the intestines of diseased and healthy animals. Our data showed that Proteobacteria, Firmicutes, Cyanobacteria, and Bacteroidetes were the dominant taxa of bacteria across all samples and accounted for more than 90% of the total sequence. Difference analysis and Venn diagrams showed that most of the intestinal bacterial OTUs (operational taxonomic units) of diseased and healthy animals were the same as those of sediment and water, indicating that the aquaculture environment was the main source of intestinal bacteria. Compared with healthy animals, a considerable reduction of OTUs was evident in diseased animals. Welch's t test showed that the dominant bacterial taxa in sediment, water, and animal intestine were significantly different (p < 0.05) and each had its own unique dominant microorganisms. In addition, differences between the intestinal bacteria of healthy and diseased animals were represented by potential probiotics and pathogens, such as Bacillus, Vibrio, Oceanobacillus, and Lactococcus. Principal component analysis (PcoA) showed that a similar environment shaped a similar microbial structure. There was a large difference in the spectrum of intestinal bacteria in diseased animals; furthermore, the spectrum of intestinal bacteria in diseased animals was very different from the environment than in healthy animals. This study provides a theoretical basis for a relationship between the intestinal bacteria of healthy and diseased animals and the environment and provides guidance for environmental regulation and disease prevention in aquaculture areas.
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Affiliation(s)
- Fulin Sun
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510000, China. .,Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Shenzhen, 518000, China.
| | - Chunzhong Wang
- Putian Institute of Aquaculture Science of Fujian Province, Putian, 351100, China.
| | - Lijuan Chen
- Putian Tian Ran Xing Agriculture Development Co. Ltd., Putian, 351100, Fujian, China
| | - Guozhu Weng
- Putian Customs Comprehensive Technical Service Center, Putian, 351100, China
| | - Zhipeng Zheng
- Putian Tian Ran Xing Agriculture Development Co. Ltd., Putian, 351100, Fujian, China
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11
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Xu M, Wu J, Chen L. Virulence, antimicrobial and heavy metal tolerance, and genetic diversity of Vibrio cholerae recovered from commonly consumed freshwater fish. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27338-27352. [PMID: 31325090 PMCID: PMC6733808 DOI: 10.1007/s11356-019-05287-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/07/2019] [Accepted: 04/25/2019] [Indexed: 06/10/2023]
Abstract
Vibrio cholerae is a leading waterborne pathogen worldwide. Continuous monitoring of V. cholerae contamination in aquatic products and identification of risk factors are crucial for assuring food safety. In this study, we determined the virulence, antimicrobial susceptibility, heavy metal tolerance, and genetic diversity of 400 V. cholerae isolates recovered from commonly consumed freshwater fish (Aristichthys nobilis, Carassius auratus, Ctenopharyngodon idellus, and Parabramis pekinensis) collected in July and August of 2017 in Shanghai, China. V. cholerae has not been previously detected in the half of these fish species. The results revealed an extremely low occurrence of pathogenic V. cholerae carrying the major virulence genes ctxAB (0.0%), tcpA (0.0%), ace (0.0%), and zot (0.0%). However, high incidence of virulence-associated genes was observed, including the RTX toxin gene cluster (rtxA-D) (83.0-97.0%), hlyA (87.8%), hapA (95.0%), and tlh (76.0%). Meanwhile, high percentages of resistance to antimicrobial agents streptomycin (65.3%), ampicillin (44.5%), and rifampicin (24.0%) were observed. Approximately 30.5% of the isolates displayed multidrug resistant (MDR) phenotypes with 42 resistance profiles, which were significantly different among the four fish species (MARI, P = 0.001). Additionally, tolerance of isolates to heavy metals Hg2+ (49.3%), Zn2+ (30.3%), and Pb2+ (12.0%) was observed. The enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR)-based fingerprinting of the 400 V. cholerae isolates revealed 328 ERIC-genotypes, which demonstrated a large degree of genomic variation among the isolates. Overall, the results of this study support the need for food safety risk assessment of aquatic products.
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Affiliation(s)
- Mengjie Xu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China
| | - Jinrong Wu
- College of Life Science and Technology, Xinjiang University, Xinjiang, 830000, People's Republic of China
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, People's Republic of China.
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12
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Chen Z, Chang Z, Zhang L, Jiang Y, Ge H, Song X, Chen S, Zhao F, Li J. Effects of water recirculation rate on the microbial community and water quality in relation to the growth and survival of white shrimp (Litopenaeus vannamei). BMC Microbiol 2019; 19:192. [PMID: 31426738 PMCID: PMC6701121 DOI: 10.1186/s12866-019-1564-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 08/04/2019] [Indexed: 11/10/2022] Open
Abstract
Background Microbial community and its management are crucial to the stabilization of culture environment for recirculating aquaculture system (RAS). Although several studies have been carried out for the microbial community of RAS, few studies were on the RAS for shrimp. Water recirculation ratio is an important factor for the microbial community and the management of RAS. Therefore, low (LC), medium (MC) and high (HC) recirculation ratio systems were set to explore the microbial community constitution of RAS for Litopenaeus vannamei and study the effect of water recirculation rate on it. Results The bacterial community of bioreactor was mainly dominated by Proteobacteria (41.6–70.7%), followed with Planctomycetes (12.5–31.0%), Bacteroidetes (10.5–26.0%), Actinobacteria (1.1–4.8%) and Verrucomicrobia (1.4–6.8%) phylum. The most dominant family of bioreactor was Rhodobacteraceae or Planctomycetaceae. The bacterial community of culture water was simpler than bioreactor and dominated by Proteobacteria (61.8–96.4%). The dominant bacterial groups of bioreactor and culture water are also different among the three water recirculation rates, and the proportions of dominant groups showed a trend with the variety of water recirculation rate. Water quality indexes including ammonia and nitrite decreased with the increasing of water recirculation rate. According to the growth performance of L. vannamei, shrimp had better performance of growth rate and final weight in MC and HC, however, shrimp had higher survival and yield in LC. Shrimp survival and yield had an inverse correlation with water recirculation rate. Conclusions The results demonstrate the microbial community of RAS for shrimp, highlight the importance of further studies on the function of bacterial taxa, and promote the understanding of the effects of water recirculation rate on the microbiota. The findings suggest that water recirculation rate has important impacts on the microbial community, water quality and shrimp growth. Increasing the water recirculation rate could improve the water quality and promote the growth of shrimp. However, the survival rate and yield of L. vannamei are higher under low water recirculation rate. Recirculation rate is an effective method to manage RAS, and its impact on RAS needs further study, especially in the application of low level of water recirculation.
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Affiliation(s)
- Zhao Chen
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China.,Fisheries College, Ocean University of China, Qingdao, 266003, People's Republic of China
| | - Zhiqiang Chang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China
| | - Long Zhang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China
| | - Yuli Jiang
- Fisheries College, Ocean University of China, Qingdao, 266003, People's Republic of China
| | - Hongxing Ge
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China
| | - Xiefa Song
- Fisheries College, Ocean University of China, Qingdao, 266003, People's Republic of China
| | - Shibo Chen
- Qingdao Excellent Ocean Group Co., Ltd, Qingdao, 266400, People's Republic of China
| | - Fazhen Zhao
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China
| | - Jian Li
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, People's Republic of China.
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13
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Fang H, Huang K, Yu J, Ding C, Wang Z, Zhao C, Yuan H, Wang Z, Wang S, Hu J, Cui Y. Metagenomic analysis of bacterial communities and antibiotic resistance genes in the Eriocheir sinensis freshwater aquaculture environment. CHEMOSPHERE 2019; 224:202-211. [PMID: 30822726 DOI: 10.1016/j.chemosphere.2019.02.068] [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: 10/24/2018] [Revised: 02/02/2019] [Accepted: 02/10/2019] [Indexed: 06/09/2023]
Abstract
Aquaculture has attracted significant attention as an environmental gateway to the development of antibiotic resistance. The industry of Chinese mitten crab Eriocheir sinensis contributes significantly to the freshwater aquaculture industry in China. However, the situation of antibiotic resistance in the E. sinensis aquaculture environment is not known. In this study, high-throughput sequencing based metagenomic approaches were used to comprehensively investigate the structure of bacterial communities, the abundance and diversity of antibiotic resistance genes (ARGs), as well as mobile genetic elements (MGEs) in three E. sinensis aquaculture ponds in Jiangsu Province, China. The dominant phyla were Proteobacteria, Actinobacteria, and Bacteroidetes in water samples and Proteobacteria, Chloroflexi, Verrucomicrobia, and Bacteroidetes in sediment samples. Bacitracin and multidrug were predominant ARG types in water and sediment samples, respectively. There was a significant correlation between MGEs and ARGs. In particular, plasmids were the most abundant MGEs and strongly correlated with ARGs. This is the first study of antibiotic resistome that uses metagenomic approaches in the E. sinensis aquaculture environment. The results indicate that the opportunistic pathogens may acquire ARGs via horizontal gene transfer, intensifying the potential risk to human health.
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Affiliation(s)
- Hao Fang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Kailong Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Junnan Yu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Chengcheng Ding
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, 210042, China
| | - Zhifeng Wang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Cheng Zhao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Hezhong Yuan
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Zhuang Wang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Se Wang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Jianlin Hu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Yibin Cui
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, 210042, China.
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14
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The Role of Pseudomonas in Heterotrophic Nitrification: A Case Study on Shrimp Ponds ( Litopenaeus vannamei) in Soc Trang Province. Microorganisms 2019; 7:microorganisms7060155. [PMID: 31146455 PMCID: PMC6616971 DOI: 10.3390/microorganisms7060155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 01/08/2023] Open
Abstract
Based on a total of 6,295,650 sequences from the V3 and V4 regions (16S ribosomal RNA), the composition of the microorganism communities in the water of three Litopenaeus vannamei (Decapoda, Whiteleg shrimp; Soc Trang, Vietnam) ponds were identified. Pseudomonas (10–20.29%), Methylophilus (13.26–24.28%), and Flavobacterium (2.6–19.29%) were the most abundant genera. The total ammonia (TAN) concentration (p = 0.025) and temperature (p = 0.015) were significantly correlated with the relative abundance of Pseudomonas in two bacterial communities (ST1, ST4), whereas the predictive functions of microorganism communities based on 16S rRNA gene data was estimated using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUST), which showed that nitrogen metabolism was significantly negatively correlated (p = 0.049) with TAN concentration. The abundance of Pseudomonas and nitrogen metabolism increased with a decrease in TAN concentration. The correlation between TAN concentration and the abundance of Pseudomonas was followed by the isolation, and heterotrophic nitrifying performance analysis was used to confirm our findings. Six Pseudomonas strains capable of heterotrophic nitrification were isolated from the three water samples and showed a complete reduction of 100 mg/L NH4Cl during a 96-h cultivation. These results indicate the potential of applying Pseudomonas in shrimp ponds for water treatment.
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15
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Md Zoqratt MZH, Eng WWH, Thai BT, Austin CM, Gan HM. Microbiome analysis of Pacific white shrimp gut and rearing water from Malaysia and Vietnam: implications for aquaculture research and management. PeerJ 2018; 6:e5826. [PMID: 30397546 PMCID: PMC6214229 DOI: 10.7717/peerj.5826] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/25/2018] [Indexed: 01/27/2023] Open
Abstract
Aquaculture production of the Pacific white shrimp is the largest in the world for crustacean species. Crucial to the sustainable global production of this important seafood species is a fundamental understanding of the shrimp gut microbiota and its relationship to the microbial ecology of shrimp pond. This is especially true, given the recently recognized role of beneficial microbes in promoting shrimp nutrient intake and in conferring resistance against pathogens. Unfortunately, aquaculture-related microbiome studies are scarce in Southeast Asia countries despite the severe impact of early mortality syndrome outbreaks on shrimp production in the region. In this study, we employed the 16S rRNA amplicon (V3–V4 region) sequencing and amplicon sequence variants (ASV) method to investigate the microbial diversity of shrimp guts and pond water samples collected from aquaculture farms located in Malaysia and Vietnam. Substantial differences in the pond microbiota were observed between countries with the presence and absence of several taxa extending to the family level. Microbial diversity of the shrimp gut was found to be generally lower than that of the pond environments with a few ubiquitous genera representing a majority of the shrimp gut microbial diversity such as Vibrio and Photobacterium, indicating host-specific selection of microbial species. Given the high sequence conservation of the 16S rRNA gene, we assessed its veracity at distinguishing Vibrio species based on nucleotide alignment against type strain reference sequences and demonstrated the utility of ASV approach in uncovering a wider diversity of Vibrio species compared to the conventional OTU clustering approach.
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Affiliation(s)
- Muhammad Zarul Hanifah Md Zoqratt
- School of Science, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Genomics Facility, Tropical Medicine and Biology Platform, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia
| | - Wilhelm Wei Han Eng
- School of Science, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Genomics Facility, Tropical Medicine and Biology Platform, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia
| | - Binh Thanh Thai
- Fisheries and Technical, Economical College, Dinh Bang, Tu Son, Vietnam
| | - Christopher M Austin
- School of Science, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Genomics Facility, Tropical Medicine and Biology Platform, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia.,Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia
| | - Han Ming Gan
- School of Science, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Genomics Facility, Tropical Medicine and Biology Platform, Monash University Malaysia, Petaling Jaya, Selangor, Malaysia.,Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia.,Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia
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16
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Zhang H, Wang Y, Chen S, Zhao Z, Feng J, Zhang Z, Lu K, Jia J. Water Bacterial and Fungal Community Compositions Associated with Urban Lakes, Xi'an, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018. [PMID: 29518989 PMCID: PMC5877014 DOI: 10.3390/ijerph15030469] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Urban lakes play a vital role in the sustainable development of urbanized areas. In this freshwater ecosystem, massive microbial communities can drive the recycling of nutrients and regulate the water quality. However, water bacterial and fungal communities in the urban lakes are not well understood. In the present work, scanning electron microscopy (SEM) was combined with community level physiological profiles (CLPPs) and Illumina Miseq sequence techniques to determine the diversity and composition of the water bacterial and fungal community in three urban lakes, namely Xingqing lake (LX), Geming lake (LG) and Lianhu lake (LL), located in Xi’an City (Shaanxi Province, China). The results showed that these three lakes were eutrophic water bodies. The highest total nitrogen (TN) was observed in LL, with a value of 12.1 mg/L, which is 2 times higher than that of LG. The permanganate index (CODMn) concentrations were 21.6 mg/L, 35.4 mg/L and 28.8 mg/L in LG, LL and LX, respectively (p < 0.01). Based on the CLPPs test, the results demonstrated that water bacterial communities in the LL and LX urban lakes had higher carbon source utilization ability. A total of 62,742 and 55,346 high quality reads were grouped into 894 and 305 operational taxonomic units (OTUs) for bacterial and fungal communities, respectively. Water bacterial and fungal community was distributed across 14 and 6 phyla. The most common phyla were Proteobacteriaand Cyanobacteria. Cryptomycota was particularly dominant in LL, while Chytridiomycota and Entomophthormycota were the most abundant fungal phyla, accounting for 95% of the population in the LL and 56% in the LG. Heat map and redundancy analysis (RDA) highlighted the dramatic differences of water bacterial communities among three urban lakes. Meanwhile, the profiles of fungal communities were significantly correlated with the water quality parameters (e.g., CODMn and total nitrogen, TN). Several microbes (Legionella sp. and Streptococcus sp.) related to human diseases, such as infectious diseases, were also found. The results from this study provides useful information related to the water quality and microbial community compositions harbored in the aquatic ecosystems of urban lakes.
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Affiliation(s)
- Haihan Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Yue Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Shengnan Chen
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Zhenfang Zhao
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Ji Feng
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Zhonghui Zhang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Kuanyu Lu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Jingyu Jia
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Institute of Environmental Microbial Technology, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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17
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Huang Z, Jiang Y, Song X, Hallerman E, Peng L, Dong D, Ma T, Zhai J, Li W. Ammonia-oxidizing bacteria and archaea within biofilters of a commercial recirculating marine aquaculture system. AMB Express 2018; 8:17. [PMID: 29429071 PMCID: PMC5810308 DOI: 10.1186/s13568-018-0551-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/05/2018] [Indexed: 11/17/2022] Open
Abstract
While biofilters are widely used to metabolize ammonia and other wastes in marine recirculating aquaculture systems, the ammonia-oxidizing bacterial and archaeal communities have not been characterized across a diversity of production systems. Using a metagenomics approach, we characterized the ammonia-oxidizing microbiological community of biofilters in a commercial recirculating marine aquaculture system producing hybrid grouper (Epinephelus lanceolatus × E. fuscoguttatus). Cloning and sequencing of the amoA gene showed that nitrifying bacteria included Nitrosomonas europea, N. stercoris, N. cryotolerans, N. eutropha, N. estuarii, eight strains of N. marina, and 15 strains not associated with described species. Nitrifying archaea included eight strains of Nitrosopumilus maritimus, N. koreensis, N. piranensis, N. adriaticus, undescribed congeners, and other undescribed archaea. The species composition of the bacterial and especially the archaeal communities was beyond that yet reported for aquaculture biofilters. While ammonia flux through the respective communities has yet to be estimated, the diverse environmental adaptations of the bacterial and archaeal communities suggest resilience of function under a range of environmental conditions.
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Affiliation(s)
- Zhitao Huang
- Department of Fisheries, Ocean University of China, Qingdao, 266003 People’s Republic of China
| | - Yuli Jiang
- Department of Fisheries, Ocean University of China, Qingdao, 266003 People’s Republic of China
| | - Xiefa Song
- Department of Fisheries, Ocean University of China, Qingdao, 266003 People’s Republic of China
| | - Eric Hallerman
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 USA
| | - Lei Peng
- Department of Fisheries, Ocean University of China, Qingdao, 266003 People’s Republic of China
| | - Dengpan Dong
- Department of Fisheries, Ocean University of China, Qingdao, 266003 People’s Republic of China
| | - Teng Ma
- Rizhao Aquaculture Technology Extension Station, Rizhao, 226600 People’s Republic of China
| | - Jieming Zhai
- Laizhou Mingbo Aquatic Co., Ltd., Lai Zhou, 261418 People’s Republic of China
| | - Wensheng Li
- Laizhou Mingbo Aquatic Co., Ltd., Lai Zhou, 261418 People’s Republic of China
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18
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Zeng S, Huang Z, Hou D, Liu J, Weng S, He J. Composition, diversity and function of intestinal microbiota in pacific white shrimp ( Litopenaeus vannamei) at different culture stages. PeerJ 2017; 5:e3986. [PMID: 29134144 PMCID: PMC5678505 DOI: 10.7717/peerj.3986] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/12/2017] [Indexed: 12/31/2022] Open
Abstract
Intestinal microbiota is an integral component of the host and plays important roles in host health. The pacific white shrimp is one of the most profitable aquaculture species commercialized in the world market with the largest production in shrimp consumption. Many studies revealed that the intestinal microbiota shifted significantly during host development in other aquaculture animals. In the present study, 22 shrimp samples were collected every 15 days from larval stage (15 day post-hatching, dph) to adult stage (75 dph) to investigate the intestinal microbiota at different culture stages by targeting the V4 region of 16S rRNA gene, and the microbial function prediction was conducted by PICRUSt. The operational taxonomic unit (OTU) was assigned at 97% sequence identity. A total of 2,496 OTUs were obtained, ranging from 585 to 1,239 in each sample. Forty-three phyla were identified due to the classifiable sequence. The most abundant phyla were Proteobacteria, Cyanobacteria, Tenericutes, Fusobacteria, Firmicutes, Verrucomicrobia, Bacteroidetes, Planctomycetes, Actinobacteria and Chloroflexi. OTUs belonged to 289 genera and the most abundant genera were Candidatus_Xiphinematobacter, Propionigenium, Synechococcus, Shewanella and Cetobacterium. Fifty-nine OTUs were detected in all samples, which were considered as the major microbes in intestine of shrimp. The intestinal microbiota was enriched with functional potentials that were related to transporters, ABC transporters, DNA repair and recombination proteins, two component system, secretion system, bacterial motility proteins, purine metabolism and ribosome. All the results showed that the intestinal microbial composition, diversity and functions varied significantly at different culture stages, which indicated that shrimp intestinal microbiota depended on culture stages. These findings provided new evidence on intestinal microorganism microecology and greatly enhanced our understanding of stage-specific community in the shrimp intestinal ecosystem.
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Affiliation(s)
- Shenzheng Zeng
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhijian Huang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Dongwei Hou
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jian Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shaoping Weng
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jianguo He
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Patil HJ, Benet-Perelberg A, Naor A, Smirnov M, Ofek T, Nasser A, Minz D, Cytryn E. Evidence of Increased Antibiotic Resistance in Phylogenetically-Diverse Aeromonas Isolates from Semi-Intensive Fish Ponds Treated with Antibiotics. Front Microbiol 2016; 7:1875. [PMID: 27965628 PMCID: PMC5124577 DOI: 10.3389/fmicb.2016.01875] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/08/2016] [Indexed: 01/10/2023] Open
Abstract
The genus Aeromonas is ubiquitous in aquatic environments encompassing a broad range of fish and human pathogens. Aeromonas strains are known for their enhanced capacity to acquire and exchange antibiotic resistance genes and therefore, are frequently targeted as indicator bacteria for monitoring antimicrobial resistance in aquatic environments. This study evaluated temporal trends in Aeromonas diversity and antibiotic resistance in two adjacent semi-intensive aquaculture facilities to ascertain the effects of antibiotic treatment on antimicrobial resistance. In the first facility, sulfadiazine-trimethoprim was added prophylactically to fingerling stocks and water column-associated Aeromonas were monitored periodically over an 11-month fish fattening cycle to assess temporal dynamics in taxonomy and antibiotic resistance. In the second facility, Aeromonas were isolated from fish skin ulcers sampled over a 3-year period and from pond water samples to assess associations between pathogenic strains to those in the water column. A total of 1200 Aeromonas isolates were initially screened for sulfadiazine resistance and further screened against five additional antimicrobials. In both facilities, strong correlations were observed between sulfadiazine resistance and trimethoprim and tetracycline resistances, whereas correlations between sulfadiazine resistance and ceftriaxone, gentamicin, and chloramphenicol resistances were low. Multidrug resistant strains as well as sul1, tetA, and intI1 gene-harboring strains were significantly higher in profiles sampled during the fish cycle than those isolated prior to stocking and these genes were extremely abundant in the pathogenic strains. Five phylogenetically distinct Aeromonas clusters were identified using partial rpoD gene sequence analysis. Interestingly, prior to fingerling stocking the diversity of water column strains was high, and representatives from all five clusters were identified, including an A. salmonicida cluster that harbored all characterized fish skin ulcer samples. Subsequent to stocking, diversity was much lower and most water column isolates in both facilities segregated into an A. veronii-associated cluster. This study demonstrated a strong correlation between aquaculture, Aeromonas diversity and antibiotic resistance. It provides strong evidence for linkage between prophylactic and systemic use of antibiotics in aquaculture and the propagation of antibiotic resistance.
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Affiliation(s)
- Hemant J Patil
- Institute of Soil, Water and Environmental Sciences, Volcani Center - Agricultural Research Organization Rishon Lezion, Israel
| | - Ayana Benet-Perelberg
- Dor Aquaculture Research Station, Fisheries Department, Israel Ministry of Agriculture and Rural Development Dor, Israel
| | - Alon Naor
- Dor Aquaculture Research Station, Fisheries Department, Israel Ministry of Agriculture and Rural Development Dor, Israel
| | - Margarita Smirnov
- Central Fish Health Laboratory, Department of Fisheries and Aquaculture, Ministry of Agriculture and Rural Development Nir David, Israel
| | - Tamir Ofek
- Central Fish Health Laboratory, Department of Fisheries and Aquaculture, Ministry of Agriculture and Rural Development Nir David, Israel
| | - Ahmed Nasser
- Institute of Soil, Water and Environmental Sciences, Volcani Center - Agricultural Research Organization Rishon Lezion, Israel
| | - Dror Minz
- Institute of Soil, Water and Environmental Sciences, Volcani Center - Agricultural Research Organization Rishon Lezion, Israel
| | - Eddie Cytryn
- Institute of Soil, Water and Environmental Sciences, Volcani Center - Agricultural Research Organization Rishon Lezion, Israel
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Hu Q, Chen L. Virulence and Antibiotic and Heavy Metal Resistance of Vibrio parahaemolyticus Isolated from Crustaceans and Shellfish in Shanghai, China. J Food Prot 2016; 79:1371-7. [PMID: 27497124 DOI: 10.4315/0362-028x.jfp-16-031] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Vibrio parahaemolyticus can cause serious human seafoodborne gastroenteritis and even death. In this study, we isolated and characterized 208 V. parahaemolyticus strains from 10 species of commonly consumed crustaceans and shellfish available in fish markets in Shanghai, People's Republic of China, in 2014. Most of these aquatic species had not been detected previously. The results revealed an extremely low occurrence of pathogenic V. parahaemolyticus carrying the toxin gene trh (1.9%). However, a high level of resistance to the antibiotics ampicillin (94.2%), rifampin (93.3%), and streptomycin (77.9%) was found. Approximately 74.5% of the isolates had multidrug-resistant phenotypes. Tolerance to the heavy metals Cu(2+), Pb(2+), and Cd(2+) was detected in the majority of antibiotic resistant isolates. The resistance patterns differed depending on the tested samples. The crustaceans Penaeus monodon and Marsupenaeus japonicus harbored more antibiotic-resistant bacteria, whereas the isolates from the crustacean Litopenaeus vannamei and the shellfish Busycon canaliculatus had high tolerance to eight heavy metals tested. In contrast to the wide distribution of multidrug resistance and tolerance to heavy metals, lower percentages of plasmid DNA (22.6%) and SXT/R391-like integrative and conjugative elements (4.8%) were detected in the isolates, suggesting that V. parahaemolyticus in these aquatic species may have adopted some other molecular mechanisms that mediated the high prevalence of resistance determinants. The results of this study support the need for food safety risk assessment of aquatic products.
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Affiliation(s)
- Qiongxia Hu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, People's Republic of China
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, People's Republic of China.
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He Y, Jin L, Sun F, Hu Q, Chen L. Antibiotic and heavy-metal resistance of Vibrio parahaemolyticus isolated from fresh shrimps in Shanghai fish markets, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:15033-40. [PMID: 27083906 PMCID: PMC4956696 DOI: 10.1007/s11356-016-6614-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 04/03/2016] [Indexed: 04/16/2023]
Abstract
Vibrio parahaemolyticus is a causative agent of human serious seafood-borne gastroenteritis disease and even death. Shrimps, often eaten raw or undercooked, are an important reservoir of the bacterium. In this study, we isolated and characterized a total of 400 V. parahaemolyticus strains from commonly consumed fresh shrimps (Litopenaeus vannamei, Macrobrachium rosenbergii, Penaeus monodon, and Exopalaemon carinicauda) in Shanghai fish markets, China in 2013-2014. The results revealed an extremely low occurrence of pathogenic V. parahaemolyticus carrying two major toxic genes (tdh and trh, 0.0 and 0.5 %). However, high incidences of antibiotic resistance were observed among the strains against ampicillin (99 %), streptomycin (45.25 %), rifampicin (38.25 %), and spectinomycin (25.50 %). Approximately 24 % of the strains derived from the P. monodon sample displayed multidrug resistant (MDR) phenotypes, followed by 19, 12, and 6 % from the E. carinicauda, L. vannamei, and M. rosenbergii samples, respectively. Moreover, tolerance to heavy metals of Cr(3+) and Zn(2+) was observed in 90 antibiotic resistant strains, the majority of which also displayed resistance to Cu(2+) (93.3 %), Pb(2+) (87.8 %), and Cd(2+)(73.3 %). The pulsed-field gel electrophoresis (PFGE)-based genotyping of these strains revealed a total of 71 distinct pulsotypes, demonstrating a large degree of genomic variation among the isolates. The wide distribution of MDR and heavy-metal resistance isolates in the PFGE clusters suggested the co-existence of a number of resistant determinants in V. parahaemolyticus population in the detected samples. This study provided data in support of aquatic animal health management and food safety risk assessment in aquaculture industry.
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Affiliation(s)
- Yu He
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, Peoples' Republic of China
| | - Lanlan Jin
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, Peoples' Republic of China
| | - Fengjiao Sun
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, Peoples' Republic of China
| | - Qiongxia Hu
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, Peoples' Republic of China
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306, Peoples' Republic of China.
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He Y, Tang Y, Sun F, Chen L. Detection and characterization of integrative and conjugative elements (ICEs)-positive Vibrio cholerae isolates from aquacultured shrimp and the environment in Shanghai, China. MARINE POLLUTION BULLETIN 2015; 101:526-532. [PMID: 26522159 DOI: 10.1016/j.marpolbul.2015.10.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/23/2015] [Accepted: 10/23/2015] [Indexed: 06/05/2023]
Abstract
Increasing industrialization and use of antimicrobial agents in aquaculture production, have led to heavy metals and multidrug resistant (MDR) pathogens becoming serious problems. These resistances are conferred in two ways: intrinsic and transfer via conjugation, or transformation by the major transmission mediators. Integrative and conjugative elements (ICEs) are one of the major mediators; however, few studies on ICEs of environmental origin have been reported in Asia. Herein, we determined the prevalence, antimicrobial susceptibility, heavy metal resistance and genotypes of 126 strains of Vibrio cholerae isolated from aquatic products and the environment in Shanghai, China. 92.3% of isolates were ICEs-positive from aquaculture water and 89.3% of isolates from shrimp showed MDR. Tracing the V. cholerae genotypes, showed no significant relevance of genotype among the antimicrobial resistance strains bearing the ICEs or not. Thus, in aquaculture, ICEs are not the major transmission mediators of resistance to antibiotics or heavy metals.
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Affiliation(s)
- Yu He
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China.
| | - Yuyi Tang
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Fengjiao Sun
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Lanming Chen
- Key Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), China Ministry of Agriculture, College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China.
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Giatsis C, Sipkema D, Smidt H, Heilig H, Benvenuti G, Verreth J, Verdegem M. The impact of rearing environment on the development of gut microbiota in tilapia larvae. Sci Rep 2015; 5:18206. [PMID: 26658351 PMCID: PMC4676014 DOI: 10.1038/srep18206] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 11/13/2015] [Indexed: 02/08/2023] Open
Abstract
This study explores the effect of rearing environment on water bacterial communities (BC) and the association with those present in the gut of Nile tilapia larvae (Oreochromis niloticus, Linnaeus) grown in either recirculating or active suspension systems. 454 pyrosequencing of PCR-amplified 16S rRNA gene fragments was applied to characterize the composition of water, feed and gut bacteria communities. Observed changes in water BC over time and differences in water BCs between systems were highly correlated with corresponding water physico-chemical properties. Differences in gut bacterial communities during larval development were correlated with differences in water communities between systems. The correlation of feed BC with those in the gut was minor compared to that between gut and water, reflected by the fact that 4 to 43 times more OTUs were shared between water and gut than between gut and feed BC. Shared OTUs between water and gut suggest a successful transfer of microorganisms from water into the gut, and give insight about the niche and ecological adaptability of water microorganisms inside the gut. These findings suggest that steering of gut microbial communities could be possible through water microbial management derived by the design and functionality of the rearing system.
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Affiliation(s)
- Christos Giatsis
- Aquaculture and Fisheries Group, Wageningen University, PO Box 338, 6708 WD Wageningen, the Netherlands
| | - Detmer Sipkema
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, the Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, the Netherlands
| | - Hans Heilig
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, the Netherlands
| | - Giulia Benvenuti
- Bioprocess Engineering, AlgaePARC, Wageningen University, PO Box 16, 6700 AA Wageningen, the Netherlands
| | - Johan Verreth
- Aquaculture and Fisheries Group, Wageningen University, PO Box 338, 6708 WD Wageningen, the Netherlands
| | - Marc Verdegem
- Aquaculture and Fisheries Group, Wageningen University, PO Box 338, 6708 WD Wageningen, the Netherlands
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