1
|
Burgos FA, Cai W, Arias CR. Gut dysbiosis induced by florfenicol increases susceptibility to Aeromonas hydrophila infection in Zebrafish Danio rerio after the recommended withdrawal period. JOURNAL OF AQUATIC ANIMAL HEALTH 2024; 36:113-127. [PMID: 38060422 DOI: 10.1002/aah.10211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/27/2023] [Accepted: 11/25/2023] [Indexed: 02/18/2024]
Abstract
OBJECTIVE Florfenicol (FFC) is a broad-spectrum antibiotic approved by the U.S. Food and Drug Administration to treat both systemic and external bacterial infections in food fish. The objective of this study was to evaluate the effect of FFC-medicated feed on the gut microbiota of Zebrafish Danio danio to determine (1) if the therapeutic dose of FFC-medicated feed induces dysbiosis and (2) if fish with altered gut microbiota were more susceptible to subsequent infection by the common opportunistic fish pathogen Aeromonas hydrophila. METHODS Zebrafish that were treated with regular and FFC-medicated feeds were artificially challenged with A. hydrophila at the end of the recommended 15-day antibiotic withdrawal period. The gut microbiota of the Zebrafish at different stages was analyzed using 16S ribosomal RNA gene sequencing. RESULT Our results found that FFC-medicated feed induced disruption of the gut microbiota. Dysbiosis was observed in all treated groups, with a significant increase in bacterial diversity, and was characterized by a remarkable bloom of Proteobacteria and a drastic decline of Mycoplasma and Cetobacterium in treated animals but without noticeable clinical signs or mortalities. In addition, the increase of Proteobacteria was not significantly reduced after the recommended 15-day withdrawal period, and the Zebrafish treated with FFC-medicated feed exhibited a significantly higher mortality rate when they were subsequently challenged with A. hydrophila compared to the control (regular feed) groups. Interestingly, the most dramatic changes in the gut microbiome composition occurred at the transition time between the late stage of the medicated treatment and the beginning of the withdrawal period instead of the time during the Aeromonas infection. CONCLUSION The administration of FFC-medicated feed at the recommended dose induced gut dysbiosis in Zebrafish, and fish did not recover to the baseline after the recommended withdrawal period. Our findings suggest that the use of antibiotics in fish elicits a response similar to those previously described in mammals and possibly makes the host more susceptible to subsequent infections of opportunistic pathogens. This study using a controlled model system suggests that antibiotics in aquaculture may have long-term effects on the general well-being of the fish.
Collapse
Affiliation(s)
- Francisca A Burgos
- Facultad de Ingeniería Marítima y Ciencias del Mar, Escuela Superior Politécnica del Litoral, Guayaquil, Ecuador
| | - Wenlong Cai
- Department of Infectious Diseases and Public Health, State Key Lab of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - Covadonga R Arias
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama, USA
| |
Collapse
|
2
|
Older CE, Griffin MJ, Richardson BM, Waldbieser GC, Reifers JG, Goodman PM, Ware C, Gatlin DM, Wise DJ, Yamamoto FY. Influence of probiotic and prebiotic supplementation on intestinal microbiota and resistance to Edwardsiella ictaluri infection in channel catfish (Ictalurus punctatus) following florfenicol administration. JOURNAL OF FISH DISEASES 2024; 47:e13910. [PMID: 38153008 DOI: 10.1111/jfd.13910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/29/2023]
Abstract
Enteric septicemia of catfish (ESC), caused by the gram-negative enteric bacteria Edwardsiella ictaluri, is a significant threat to catfish aquaculture in the southeastern United States. Antibiotic intervention can reduce mortality; however, antibiotic use results in an imbalance, or dysbiosis, of the gut microbiota, which may increase susceptibility of otherwise healthy fish to enteric infections. Herein, recovery of the intestinal microbiota and survivability of channel catfish in response to ESC challenge was evaluated following a 10-day course of florfenicol and subsequent probiotic or prebiotic supplementation. Following completion of florfenicol therapy, fish were transitioned to a basal diet or diets supplemented with a probiotic or prebiotic for the remainder of the study. Digesta was collected on Days 0, 4, 8 and 12, beginning on the first day after cessation of antibiotic treatment, and gut microbiota was characterized by Illumina sequencing of the 16S rRNA gene (V4 region). Remaining fish were challenged with E. ictaluri and monitored for 32 days post-challenge. Florfenicol administration resulted in dysbiosis characterized by inflated microbial diversity, which began to recover in terms of diversity and composition 4 days after cessation of florfenicol administration. Fish fed the probiotic diet had higher survival in response to ESC challenge than the prebiotic (p = .019) and negative control (p = .029) groups.
Collapse
Affiliation(s)
- Caitlin E Older
- Warmwater Aquaculture Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Stoneville, Mississippi, USA
| | - Matt J Griffin
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
- Aquatic Research and Diagnostic Laboratory, Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Stoneville, Mississippi, USA
| | - Bradley M Richardson
- Warmwater Aquaculture Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Stoneville, Mississippi, USA
| | - Geoffrey C Waldbieser
- Warmwater Aquaculture Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Stoneville, Mississippi, USA
| | - J Grant Reifers
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
| | - Penelope M Goodman
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
| | - Cynthia Ware
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
- Aquatic Research and Diagnostic Laboratory, Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Stoneville, Mississippi, USA
| | - Delbert M Gatlin
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, Texas, USA
| | - David J Wise
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
- Department of Wildlife, Fisheries, and Aquaculture, College of Forest Resources, Mississippi Agriculture and Forestry Experiment Station, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
| | - Fernando Y Yamamoto
- Thad Cochran National Warmwater Aquaculture Center, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
- Department of Wildlife, Fisheries, and Aquaculture, College of Forest Resources, Mississippi Agriculture and Forestry Experiment Station, Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi, USA
| |
Collapse
|
3
|
Fu GL, Meng QY, Chen Y, Xin JZ, Liu JH, Dang W, Lu HL. Metformin exposure altered intestinal microbiota composition and metabolites in amphibian larvae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115617. [PMID: 37866109 DOI: 10.1016/j.ecoenv.2023.115617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/14/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
The antidiabetic pharmaceutical metformin (MET) is largely unmetabolized by the human body. Its residues are readily detectable in various aquatic environments and may have adverse impacts on the growth and survival of aquatic species. To date, its toxicological effects have scarcely been explored in non-fish species. Here, we exposed the tadpoles of black-spotted pond frog (Pelophylax nigromaculatus) to different concentrations (0, 1, 10 and 100 μg/L) of MET for 30 days and measured the body size, intestinal microbiota and metabolites to evaluate potential effects of MET exposure in amphibian larvae. MET exposure did not affect the growth and intestinal microbial diversity of tadpoles. However, intestinal microbial composition changed significantly, with some pathogenic bacteria (e.g., bacterial genera Salmonella, Comamonas, Stenotrophomonas, Trichococcus) increasing and some beneficial bacteria (e.g., Blautia, Prevotella) decreasing in MET-exposed tadpoles. The levels of some intestinal metabolites associated with growth and immune performance also changed significantly following MET exposure. Overall, our results indicated that exposure to MET, even at environmentally relevant concentrations, would cause intestinal microbiota dysbiosis and metabolite alteration, thereby influencing the health status of non-target aquatic organisms, such as amphibians.
Collapse
Affiliation(s)
- Guang-Li Fu
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China
| | - Qin-Yuan Meng
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China
| | - Yu Chen
- Zhejiang Dapanshan National Nature Reserve, Jinhua 322300, Zhejiang, China
| | - Jin-Zhao Xin
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China
| | - Jia-Hui Liu
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China
| | - Wei Dang
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China.
| | - Hong-Liang Lu
- Herpetological Research Center, School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, Zhejiang, China.
| |
Collapse
|
4
|
Leeper A, Sauphar C, Berlizot B, Ladurée G, Koppe W, Knobloch S, Skírnisdóttir S, Björnsdóttir R, Øverland M, Benhaïm D. Enhancement of Soybean Meal Alters Gut Microbiome and Influences Behavior of Farmed Atlantic Salmon ( Salmo salar). Animals (Basel) 2023; 13:2591. [PMID: 37627382 PMCID: PMC10451335 DOI: 10.3390/ani13162591] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Atlantic salmon (Salmo salar) is one of the worlds most domesticated fish. As production volumes increase, access to high quality and sustainable protein sources for formulated feeds of this carnivorous fish is required. Soybean meal (SBM) and soy-derived proteins are the dominant protein sources in commercial aquafeeds due to their low-cost, availability and favorable amino acid profile. However, for Atlantic salmon, the inclusion of soybean meal (SBM), and soy protein concentrate (SPC) in certain combinations can impact gut health, which has consequences for immunity and welfare, limiting the use of soy products in salmonid feeds. This study sought to address this challenge by evaluating two gut health-targeted enhancements of SBM for inclusion in freshwater phase salmon diets: enzyme pre-treatment (ETS), and addition of fructose oligosaccharide (USP). These were compared with untreated soybean meal (US) and fish meal (FM). This study took a multi-disciplinary approach, investigating the effect on growth performance, gut microbiome, and behaviors relevant to welfare in aquaculture. This study suggests that both enhancements of SBM provide benefits for growth performance compared with conventional SBM. Both SBM treatments altered fish gut microbiomes and in the case of ETS, increased the presence of the lactic acid bacteria Enterococcus. For the first time, the effects of marine protein sources and plant protein sources on the coping style of salmon were demonstrated. Fish fed SBM showed a tendency for more reactive behavior compared with those fed the FM-based control. All fish had a similar low response to elicited stress, although ETS-fed fish responded more actively than US-fed fish for a single swimming measure. Furthermore, SBM-fed fish displayed lower repeatability of behavior, which may indicate diminished welfare for intensively farmed fish. The implications of these findings for commercial salmonid aquaculture are discussed.
Collapse
Affiliation(s)
- Alexandra Leeper
- Department of Research and Innovation, Iceland Ocean Cluster, Grandagardur 16, 101 Reykjavik, Iceland
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, 1420 Aas, Norway
- Department of Research and Innovation, Matís Ltd., 12, Vínlandsleid, 113 Reykjavik, Iceland
| | - Clara Sauphar
- Department of Research and Innovation, Matís Ltd., 12, Vínlandsleid, 113 Reykjavik, Iceland
- Department of Aquaculture and Fish Biology, Hólar University, 551 Hólar, Iceland
- Department of Biological Sciences Ålesund, Norwegian University of Science and Technology, 6025 Ålesund, Norway
| | - Benoit Berlizot
- Department of Aquaculture and Fish Biology, Hólar University, 551 Hólar, Iceland
| | - Gabrielle Ladurée
- Department of Aquaculture and Fish Biology, Hólar University, 551 Hólar, Iceland
| | - Wolfgang Koppe
- Department of Research and Innovation, Matís Ltd., 12, Vínlandsleid, 113 Reykjavik, Iceland
| | - Stephen Knobloch
- Department of Research and Innovation, Matís Ltd., 12, Vínlandsleid, 113 Reykjavik, Iceland
- Department of Food Technology, Fulda University of Applied Sciences, 36037 Fulda, Germany
| | | | - Rannveig Björnsdóttir
- Faculty of Natural Resource Sciences, University of Akureyi, Nordurslod, 600 Akureyi, Iceland
| | - Margareth Øverland
- Department of Animal and Aquaculture Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, 1420 Aas, Norway
| | - David Benhaïm
- Department of Aquaculture and Fish Biology, Hólar University, 551 Hólar, Iceland
| |
Collapse
|
5
|
Kakakhel MA, Bibi N, Mahboub HH, Wu F, Sajjad W, Din SZU, Hefny AA, Wang W. Influence of biosynthesized nanoparticles exposure on mortality, residual deposition, and intestinal bacterial dysbiosis in Cyprinus carpio. Comp Biochem Physiol C Toxicol Pharmacol 2023; 263:109473. [PMID: 36174907 DOI: 10.1016/j.cbpc.2022.109473] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/10/2022] [Accepted: 09/21/2022] [Indexed: 11/23/2022]
Abstract
Nanotechnology has revealed profound possibilities for the applications in applied sciences. The nanotechnology works based on nanoparticles. Among nanoparticles, silver nanoparticles largely introduced into aquatic environments during fabrication. Which cause severe contamination in the environment specially in freshwater fish. Therefore, the current study was a pioneer attempt to use the animal blood to fabricate AgNPs and investigate their toxicity in Cyprinus carpio (C. carpio) by recording mortality, tissue bioaccumulation, and influence on intestinal bacterial diversity. For this purpose, fish groups were exposed to different concentrations of B-AgNPs including 0.03, 0.06, and 0.09 mg/L beside the control group for 1, 10, and 20 days. Initially, the highest concentration caused mortality. The results revealed that B-AgNPs were significantly (p < 0.005) accumulated in the liver followed by intestines, gills, and muscles. In addition, the accumulation of B-AgNPs in the intestine led to bacterial dysbiosis in Cyprinus carpio. At the phylum level, Tenericutes, Bacteroidetes, and Planctomycetes were gradually decreased at the highest concentration of B-AgNPs (0.09 mg/L) on days 1, 10, and 20 days. The genera Cetobacterium and Luteolibactor were increased at the highest concentration on day 20. Moreover, the principal coordinate analysis (PCoA) based on Bray-Curtis showed that the B-AgNPs had led to a variation in the intestinal bacterial community. Based on findings, the B-AgNPs induced mortality, and residual deposition in different tissues, and had a stress influence on intestinal homeostasis by affecting the intestinal bacterial community in C. carpio which could have a significant effect on fish growth.
Collapse
Affiliation(s)
- Mian Adnan Kakakhel
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China. https://twitter.com/pukhtunfriend
| | - Nadia Bibi
- Department of Microbiology, Shaheed Benazir Bhutto Women University, Peshawar, Pakistan
| | - Heba H Mahboub
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt
| | - Fasi Wu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; National Research Center for Conservation of Ancient Wall Paintings and Earthen Sites, Department of Conservation Research, Dunhuang Academy, Dunhuang 736200, Gansu, China
| | - Wasim Sajjad
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Syed Zaheer Ud Din
- International School for Optoelectronic Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Ahmed A Hefny
- Colleague of Microbiology, Veterinary Hospital, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Wanfu Wang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; National Research Center for Conservation of Ancient Wall Paintings and Earthen Sites, Department of Conservation Research, Dunhuang Academy, Dunhuang 736200, Gansu, China.
| |
Collapse
|
6
|
Liu H, Qian K, Zhang S, Yu Q, Du Y, Fu S. Lead exposure induces structural damage, digestive stress, immune response and microbiota dysbiosis in the intestine of silver carp (Hypophthalmichthys molitrix). Comp Biochem Physiol C Toxicol Pharmacol 2022; 262:109464. [PMID: 36108998 DOI: 10.1016/j.cbpc.2022.109464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/28/2022] [Accepted: 09/08/2022] [Indexed: 11/03/2022]
Abstract
Lead (Pb) is one of the most common trace metals in water, and its high concentration in the environment can cause harm to aquatic animals and humans. In the present study, the effects of Pb exposure (3.84 mg/kg) on the morphology, digestive enzyme activity, immune function and microbiota structure of silver carp (Hypophthalmichthys molitrix) intestines within 96 h were detected. Moreover, the correlation between them was analyzed. The results showed that Pb exposure on the one hand severely impaired the intestinal morphology, including significantly shortening the intestinal villi's length, increasing the goblet cells' number, causing the intestinal leukocyte infiltration, and thickening the intestinal wall abnormally, on the other hand, increasing the activity of intestinal digestive enzyme (trypsin and lipase). In addition, the mRNA expressions of structure-related genes (Claudin-7 and villin-1) were down-regulated, and the immune factors genes (IL-8, IL-10 and TNF-α) were up-regulated after Pb exposure. Furthermore, data of the MiSeq sequencing showed that the abundance of membrane transport, immune system function and digestive system of silver carp intestinal microbiota all decreased, while cellular antigens increased. Finally, the canonical correlation analysis (CCA) showed that there were correlations between silver carp's intestinal microbiota and intestinal morphology and immune factors. In conclusion, it is speculated that the entry of Pb into the intestine leads the microbiota dysbiosis, affects the intestinal immunity and digestive function, and further damages the intestinal barrier of silver carp.
Collapse
Affiliation(s)
- Haisu Liu
- Guangdong Provincial Key Laboratory for Healthy and Saft Aquaculture, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China; Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Research Center for Harmful Algae and Marine Biology, Jinan University, Guangzhou 510632, PR China
| | - Kun Qian
- Guangdong Provincial Key Laboratory for Healthy and Saft Aquaculture, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Sanshan Zhang
- Guangdong Provincial Key Laboratory for Healthy and Saft Aquaculture, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Qianxun Yu
- Hubei Institute of Product Quality Supervision and Inspection, Wuhan 430061, PR China
| | - Yudong Du
- Guangdong Provincial Key Laboratory for Healthy and Saft Aquaculture, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Shengli Fu
- Guangdong Provincial Key Laboratory for Healthy and Saft Aquaculture, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China.
| |
Collapse
|
7
|
Kayani MUR, Zaidi SSA, Feng R, Yu K, Qiu Y, Yu X, Chen L, Huang L. Genome-Resolved Characterization of Structure and Potential Functions of the Zebrafish Stool Microbiome. Front Cell Infect Microbiol 2022; 12:910766. [PMID: 35782152 PMCID: PMC9240224 DOI: 10.3389/fcimb.2022.910766] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/13/2022] [Indexed: 11/13/2022] Open
Abstract
Zebrafish have been used as a model organism for more than 50 years and are considered an excellent model for studying host-microbiome interactions. However, this largely depends on our understanding of the zebrafish gut microbiome itself. Despite advances in sequencing and data analysis methods, the zebrafish gut microbiome remains highly understudied. This study performed the de novo metagenome assembly and recovery of the metagenome-assembled genomes (MAGs) through genome binning (and refinement) of the contigs assembled from the zebrafish stool. The results indicate that majority of the MAGs had excellent quality i.e. high completeness (≥90%) and low contamination levels (≤5%). MAGs mainly belong to the taxa that are known to be members of the core zebrafish stool microbiome, including the phylum Proteobacteria, Fusobacteriota, and Actinobacteriota. However, most of the MAGs remained unclassified at the species level and reflected previously unexplored microbial taxa and their potential novelty. These MAGs also contained genes with predicted functions associated with diverse metabolic pathways that included carbohydrate, amino acid, and lipid metabolism pathways. Lastly, we performed a comparative analysis of Paucibacter MAGs and reference genomes that highlighted the presence of novel Paucibacter species and enriched metabolic potential in the recovered MAGs.
Collapse
Affiliation(s)
- Masood ur Rehman Kayani
- Department of Infectious Diseases, Xinhua Children’s Hospital, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | - Ru Feng
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kan Yu
- School of Life Sciences, Fudan University, Shanghai, China
| | - Yushu Qiu
- Department of Infectious Diseases, Xinhua Children’s Hospital, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaogang Yu
- Ministry of Education and Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Chen
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Lei Chen, ; Lisu Huang,
| | - Lisu Huang
- Department of Infectious Diseases, Xinhua Children’s Hospital, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Lei Chen, ; Lisu Huang,
| |
Collapse
|
8
|
Li K, Zhao S, Guan W, Li KJ. Planktonic bacteria in white shrimp (Litopenaeus vannamei) and channel catfish (Letalurus punetaus) aquaculture ponds in a salt-alkaline region. Lett Appl Microbiol 2021; 74:212-219. [PMID: 34778977 DOI: 10.1111/lam.13600] [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: 08/04/2021] [Revised: 10/01/2021] [Accepted: 10/26/2021] [Indexed: 01/01/2023]
Abstract
Aquaculture in salt-alkaline regions is encouraged in China, and culture of many aquatic species has been introduced into these areas. In this study, we cultured two species, white shrimp (Litopenaeus vannamei) and channel catfish (Letalurus punetaus) separately in aquaculture ponds in a salt-alkaline region in northwest China and assessed the impacts of the aquaculture operations on the planktonic bacterial community in the culture ponds. Culture of both species decreased the planktonic bacterial diversity and altered the bacterial community structure in the aquaculture ponds compared with the source water. Among the 10 dominant bacterial phyla, 8 were significantly correlated with environmental parameters; the exception was Actinobacteriota, the most dominant phylum, and Firmicutes. Proteobacteria and Bacteroidota abundances showed significant positive correlations with alkalinity, whereas Patescibacteria, Cyanobacteria, Planctomycetota, and Verrucomicrobiota abundance were positively correlated with salinity. Linear regression analysis showed that alkalinity was positively correlated with bacterial beta diversity and salinity was negatively correlated with that. In addition, white shrimp aquaculture significantly lowered the alkalinity, which suggests that culture of this species in inland salt-alkaline regions is a potential dealkalization solution.
Collapse
Affiliation(s)
- K Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - S Zhao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - W Guan
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - K J Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| |
Collapse
|
9
|
Liu B, Song C, Gao Q, Liu B, Zhou Q, Sun C, Zhang H, Liu M, Tadese DA. Maternal and environmental microbes dominate offspring microbial colonization in the giant freshwater prawn Macrobrachium rosenbergii. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148062. [PMID: 34091334 DOI: 10.1016/j.scitotenv.2021.148062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/23/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
Microbial colonization is vital for physiological equilibrium in animals. However, the impact of maternal and environmental microbes on microbial succession in the early developmental stages of Macrobrachium rosenbergii remains elusive. In this study, the effects of maternal and environmental microbes on the embryonic and larval microbiota of M. rosenbergii were evaluated by high-throughput sequencing. The results showed that Proteobacteria and Firmicutes were the dominant phyla in the intestine, gonads, and hepatopancreases of maternal prawn. In addition, Actinobacteria was dominant in the intestine while Actinobacteria, Bacteroidetes, and Acidobacteria were dominant in gonads of maternal prawn. During the embryonic stages, Proteobacteria, Actinobacteria, and Bacteroidetes became the dominant phyla. In post-larval stages, Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes tended to dominate. In the water, Proteobacteria, Actinobacteria, and Bacteroidetes were the dominant phyla at 7, 14, and 21 dph water. Maternal microbes prominently impacted the microbial composition during the embryonic stages. Specifically, microbial colonization during embryonic stages was directly related to the maternal hepatopancreas according to source-tracking models. When the post-larvae developed to 7 days, the high contribution to the larval microbiota mimicked the environment. These results indicated that microbial colonization in embryonic and post-larval stages was attributed to the maternal and environmental microbe community, respectively. This study provides a theoretical basis for microbial community manipulation to promote prawn growth and physiological health in aquaculture.
Collapse
Affiliation(s)
- Bo Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Changyou Song
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Qiang Gao
- Zhejiang Institute of Freshwater Fishery, Huzhou 313001, PR China
| | - Bo Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Qunlan Zhou
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Cunxin Sun
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Huimin Zhang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Mingyang Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Dawit Adisu Tadese
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| |
Collapse
|
10
|
Ding L, Huang Z, Lu Y, Liang L, Li N, Xu Z, Zhang J, Shi H, Hong M. Toxic effects of ammonia on intestinal health and microbiota in red-eared slider (Trachemys scripta elegans). CHEMOSPHERE 2021; 280:130630. [PMID: 33930609 DOI: 10.1016/j.chemosphere.2021.130630] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/07/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Ammonia is an important environmental pollutant and can induce serious damages to the organs of aquatic animals, especially the intestine which is mostly exposed to external environment. As important species of aquatic ecosystems, turtles may be potential risk targets of ammonia. However, it is not clear whether ammonia shows toxic effects on the intestines of turtles. Therefore, the worldwide species red-eared slider (Trachemys scripta elegans) was selected, to investigate the effects of ammonia on intestinal health and the composition of microbiota. Results showed that ammonia significantly changed the structure of intestines by decreasing the thickness of intestinal wall, shortening the length of intestinal villus, extending lamina proprias, and inducing inflammatory cells appearance when the turtles were exposed to ammonia (1.418 mg NH3 L-1) for 30 d. In addition, the downregulation of epithelial tight junction genes indicated that ammonia increased selective paracellular permeability. Simultaneously, the upregulation of cytokines suggested that ammonia induced intestinal immune and inflammatory responses. Furthermore, ammonia altered the dominant bacterial composition, and decreased the abundance of beneficial intestinal bacteria in the host. Our results demonstrated that ammonia impaired the intestinal health and changed the composition of residential microbiota in T. s. elegans. This study provides a new insight to evaluate the toxic effects of ammonia on aquatic turtles and helps to build a framework for the effective conservation of turtles.
Collapse
Affiliation(s)
- Li Ding
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Zubin Huang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yingnan Lu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Lingyue Liang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Na Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Zhixia Xu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Jiliang Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Meiling Hong
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China.
| |
Collapse
|
11
|
Díaz M, Jarrín-V P, Simarro R, Castillejo P, Tenea GN, Molina CA. The Ecuadorian Microbiome Project: a plea to strengthen microbial genomic research. NEOTROPICAL BIODIVERSITY 2021. [DOI: 10.1080/23766808.2021.1938900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Magdalena Díaz
- Institute of Research on Zoonoses (CIZ), Central University of Ecuador, Quito, Ecuador
- Chemistry Engineering Faculty, Central University of Ecuador, Quito, Ecuador
| | - Pablo Jarrín-V
- Health and Environment Research Group, Universidad Regional Amazónica Ikiam, Tena, Ecuador
| | - Raquel Simarro
- Department of Biology, Geology, Physics and Inorganic Chemistry,ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - Pablo Castillejo
- Faculty of Environmental Sciences, SEK International University, Quito, Ecuador
- Applied Sciences and Engineering Faculty, Universidad De Las Américas, Quito, Ecuador
| | - Gabriela N. Tenea
- Biofood and Nutraceutics Research and Development Group, Faculty of Engineering in Agricultural and Environmental Sciences, Technical University of the North, Ibarra, Ecuador
| | - C. Alfonso Molina
- Institute of Research on Zoonoses (CIZ), Central University of Ecuador, Quito, Ecuador
- Faculty of Veterinary Medicine and Zootechnics, Central University of Ecuador, Quito, Ecuador
| |
Collapse
|
12
|
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.
Collapse
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.
| |
Collapse
|
13
|
Fowler EC, Poudel P, White B, St-Pierre B, Brown M. Effects of a Bioprocessed Soybean Meal Ingredient on the Intestinal Microbiota of Hybrid Striped Bass, Morone chrysops x M. saxatilis. Microorganisms 2021; 9:microorganisms9051032. [PMID: 34064862 PMCID: PMC8151853 DOI: 10.3390/microorganisms9051032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 12/12/2022] Open
Abstract
The hybrid striped bass (Morone chrysops x M. saxatilis) is a carnivorous species and a major product of US aquaculture. To reduce costs and improve resource sustainability, traditional ingredients used in fish diets are becoming more broadly replaced by plant-based products; however, plant meals can be problematic for carnivorous fish. Bioprocessing has improved nutritional quality and allowed higher inclusions in fish diets, but these could potentially affect other systems such as the gut microbiome. In this context, the effects of bioprocessed soybean meal on the intestinal bacterial composition in hybrid striped bass were investigated. Using high-throughput sequencing of amplicons targeting the V1-V3 region of the 16S rRNA gene, no significant difference in bacterial composition was observed between fish fed a control diet, and fish fed a diet with the base bioprocessed soybean meal. The prominent Operational Taxonomic Unit (OTU) in these samples was predicted to be a novel species affiliated to Peptostreptococcaceae. In contrast, the intestinal bacterial communities of fish fed bioprocessed soybean meal that had been further modified after fermentation exhibited lower alpha diversity (p < 0.05), as well as distinct and more varied composition patterns, with OTUs predicted to be strains of Lactococcus lactis, Plesiomonas shigelloides, or Ralstonia pickettii being the most dominant. Together, these results suggest that compounds in bioprocessed soybean meal can affect intestinal bacterial communities in hybrid striped bass.
Collapse
Affiliation(s)
- Emily Celeste Fowler
- Department of Animal Science, South Dakota State University, Brookings, SD 57007, USA; (E.C.F.); (P.P.)
| | - Prakash Poudel
- Department of Animal Science, South Dakota State University, Brookings, SD 57007, USA; (E.C.F.); (P.P.)
| | - Brandon White
- Department of Natural Resource Management, South Dakota State University, Brookings, SD 57007, USA;
| | - Benoit St-Pierre
- Department of Animal Science, South Dakota State University, Brookings, SD 57007, USA; (E.C.F.); (P.P.)
- Correspondence: (B.S.-P.); (M.B.)
| | - Michael Brown
- Department of Natural Resource Management, South Dakota State University, Brookings, SD 57007, USA;
- Correspondence: (B.S.-P.); (M.B.)
| |
Collapse
|
14
|
Assessment of bacteriophage vB_Pd_PDCC-1 on bacterial dynamics during ontogenetic development of the longfin yellowtail (Seriola rivoliana). Appl Microbiol Biotechnol 2021; 105:2877-2887. [PMID: 33710359 DOI: 10.1007/s00253-021-11223-z] [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: 10/12/2020] [Revised: 02/01/2021] [Accepted: 03/07/2021] [Indexed: 12/13/2022]
Abstract
The Seriola genus includes species of worldwide commercial importance due to its rapid growth and easy adaptability to confinement conditions. However, like other fish species, large mortalities occur during their early life stages, where the main problems are caused by opportunistic bacteria. Disease control strategies are thus urgently needed. The present study aimed to evaluate the efficacy of phage vB_Pd_PDCC-1 during the early development of longfin yellowtail (Seriola rivoliana), as well as its effect on microbial communities. This broad-host-range phage was added to the culture every 3 days starting from the egg-stage until 12 days after hatching (DAH) at a concentration of 1.41×1010 plaque-forming units (PFU) per mL and at a multiplicity of infection (MOI) of 1. The results showed positive effects (p<0.05) on egg hatching, survival, growth, and pigmentation area in treated larvae. Moreover, high-throughput sequencing analysis of 16S rRNA genes showed that phage administration did not produce significant changes (p>0.05) in the composition and structure of the associated microbiota. However, sequences affiliated to the Gammaproteobacteria class were displaced by those belonging to the Alphaproteobacteria class over time regardless of the treatment received. At the family level, there was a decrease in Rhodobacteraceae, Pseudoalteromonadaceae, and Flavobacteriaceae in both groups over time. To our best knowledge, this study represents the first attempt to evaluate the effect of a phage as a biological control agent during ontogenetic development of longfin yellowtail larvae. KEY POINTS: • Phages can be used against proliferation of Vibrio in fish cultures. • Seriola includes several important commercial fish species due to its rapid growth. • Phages do not cause significant changes in the associated microbiota.
Collapse
|
15
|
Fong JJ, Sung YH, Ding L. Comparative Analysis of the Fecal Microbiota of Wild and Captive Beal's Eyed Turtle ( Sacalia bealei) by 16S rRNA Gene Sequencing. Front Microbiol 2020; 11:570890. [PMID: 33240228 PMCID: PMC7677423 DOI: 10.3389/fmicb.2020.570890] [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: 06/09/2020] [Accepted: 10/09/2020] [Indexed: 11/13/2022] Open
Abstract
The Beal’s eyed turtle (Sacalia bealei) is threatened with extinction due to hunting for large-scale trade. In Hong Kong, there are some of the world’s remaining wild populations of S. bealei, as well as a breeding colony. This breeding colony is at the core of conservation efforts (captive breeding, reintroduction programs). Therefore, we would like to know how captivity, in particular diet, affects the gut microbiota. Using high-throughput 16S rRNA gene sequencing, we comparatively analyzed the fecal microbiota of wild and captive S. bealei. We found that wild S. bealei have higher alpha diversity than captive S. bealei, but the difference was not significant. Significant differences were found in β-diversity; at the phylum level, wild S. bealei have higher relative abundances of Proteobacteria and captive S. bealei have higher relative abundances of Firmicutes. At the genus level, Cetobacterium and Citrobacter are more abundant in wild S. bealei, while Clostridium spp. are significantly more abundant in captive S. bealei. These results suggest conditions in captivity, with diet being a major factor, influence the gut microbiota of S. bealei. The connection between diet and health has always been considered for captive animals, and in this study we use the gut microbiota as an another tool to assess health.
Collapse
Affiliation(s)
| | - Yik-Hei Sung
- Science Unit, Lingnan University, Hong Kong, China
| | - Li Ding
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, China
| |
Collapse
|
16
|
Balbi T, Vezzulli L, Lasa A, Pallavicini A, Canesi L. Insight into the microbial communities associated with first larval stages of Mytilus galloprovincialis: Possible interference by estrogenic compounds. Comp Biochem Physiol C Toxicol Pharmacol 2020; 237:108833. [PMID: 32585367 DOI: 10.1016/j.cbpc.2020.108833] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/29/2020] [Accepted: 06/19/2020] [Indexed: 12/12/2022]
Abstract
The microbiota, the host-associated community of microbes, play important roles in health status and whole body homeostasis of all organisms, including marine species. In bivalves, the microbiota composition has been mainly investigated in adults, whereas little information is available during development. In this work, the microbiota composition of the first larval stages of Mytilus galloprovincialis was evaluated by 16S rRNA gene-based profiling, at 24 and 48 hours post fertilization in comparison with those of eggs and sperm. The main genera detected in both larvae (Vibrio, Pseudoalteromonas, Psychrobium, Colwellia) derived from eggs. However, a clear shift in microbiota was observed in developing larvae compared to eggs, both in terms of core microbiome and relative abundance of different genera. The results provide a first insight into the composition of the microbial communities associated with gametes and early larvae of mussels. Moreover, the impact on larval microbiome of estrogenic chemicals that potentially affect Mytilus early development, 17βestradiol-E2, Bisphenol A-BPA and Bisphenol F-BPF (10 μg/L), was investigated. Exposure to estrogenic chemicals leads to changes in abundance of different genera, with distinct and common effects depending on the compound and larval stage. Both potential pathogens (Vibrio, Arcobacter, Tenacibaculum) and genera involved in xenobiotic biotransformation (Oleispira, Shewanella) were affected. The effects of estrogenic compounds on larval microbiome were not related to their developmental effects: however, the results address the importance of evaluating the impact of emerging contaminants on the microbiota of marine invertebrates, including larval stages, that are most sensitive to environmental perturbations.
Collapse
Affiliation(s)
- T Balbi
- DISTAV, Dept. of Earth, Environment and Life Sciences, University of Genoa, Italy.
| | - L Vezzulli
- DISTAV, Dept. of Earth, Environment and Life Sciences, University of Genoa, Italy
| | - A Lasa
- Dept. of Microbiology and Parasitology, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - A Pallavicini
- Dept. of Life Sciences, University of Trieste, Italy
| | - L Canesi
- DISTAV, Dept. of Earth, Environment and Life Sciences, University of Genoa, Italy
| |
Collapse
|
17
|
Draft Genome Sequences of Cetobacterium somerae 2G Large and Two Novel Cetobacterium Isolates from Intestines of Channel Catfish ( Ictalurus punctatus). Microbiol Resour Announc 2020; 9:9/44/e01006-20. [PMID: 33122413 PMCID: PMC7595949 DOI: 10.1128/mra.01006-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We report the draft genome sequences of Cetobacterium somerae 2G Large and two Cetobacterium isolates, 2A and 8H, which may represent novel species. The isolates were recovered from the intestines of catfish, and the genomes will assist in research to understand their potential use as probiotics in aquaculture.
Collapse
|
18
|
Fish Skin and Gut Microbiomes Show Contrasting Signatures of Host Species and Habitat. Appl Environ Microbiol 2020; 86:AEM.00789-20. [PMID: 32503908 DOI: 10.1128/aem.00789-20] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022] Open
Abstract
Teleost fish represent an invaluable repertoire of host species to study the factors shaping animal-associated microbiomes. Several studies have shown that the phylogenetic structure of the fish gut microbiome is driven by species-specific (e.g., host ancestry, genotype, or diet) and habitat-specific (e.g., hydrochemical parameters and bacterioplankton composition) factors. However, our understanding of other host-associated microbial niches, such as the skin mucus microbiome, remains limited. The goal of our study was to explore simultaneously the phylogenetic structure of the fish skin mucus and gut microbiome and compare the effect of species- and habitat-specific drivers on the structure of microbial communities in both tissues. We sampled 114 wild fish from 6 populations of 3 ecologically and phylogenetically contrasting Amazonian teleost species. Water samples were collected at each site, and 10 physicochemical parameters were characterized. The skin mucus, gut, and water microbial communities were characterized using a metabarcoding approach targeting the V3-V4 regions of the 16S rRNA. Our results showed a significant distinction between the phylogenetic profile and diversity of the microbiome from each microbial niche. Skin mucus and bacterioplankton communities were significantly closer in composition than gut and free-living communities. Species-specific factors mostly modulated gut bacterial communities, while the skin mucus microbiome was predominantly associated with environmental physicochemistry and bacterioplankton community structure. These results suggest that the variable skin mucus community is a relevant target for the development of microbial biomarkers of environmental status, while the more conserved gut microbiome is better suited to study long-term host-microbe interactions over evolutionary time scales.IMPORTANCE Whether host-associated microbiomes are mostly shaped by species-specific or environmental factors is still unresolved. In particular, it is unknown to what extent microbial communities from two different host tissues from the same host respond to these factors. Our study is one of the first to focus on the microbiome of teleost fish to shed a light on this topic as we investigate how the phylogenetic structure of microbial communities from two distinct fish tissues are shaped by species- and habitat-specific factors. Our study showed that in contrast to the teleost gut microbiome, skin mucus communities are highly environment dependent. This result has various implications: (i) the skin mucus microbiome should be used, rather than the gut, to investigate bacterial biomarkers of ecosystem perturbance in the wild, and (ii) the gut microbiome is better suited for studies of the drivers of phylosymbiosis, or the coevolution of fish and their symbionts.
Collapse
|
19
|
Jia J, Cheng M, Xue X, Guan Y, Wang Z. Characterization of tetracycline effects on microbial community, antibiotic resistance genes and antibiotic resistance of Aeromonas spp. in gut of goldfish Carassius auratus Linnaeus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 191:110182. [PMID: 31958628 DOI: 10.1016/j.ecoenv.2020.110182] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/05/2020] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
The gut of aquatic animals was a significant niche for dissemination of antibiotic resistance genes (ARGs) and direct response of living conditions. In this study, the gut microbiota of goldfish Carassius auratus Linnaeus was sampled at 7 days and 21 days after treatment with tetracycline at 0.285 and 2.85 μg L-1 to investigate the influences on the microbial structure and antibiotic resistance. The proportion of tetracycline resistance bacteria was 1.02% in the control group, while increased to 23.00%, 38.43%, 62.05% in groups of high concentration for 7 days (H7), low concentration for 21 days (L21) and high concentration for 21 days (H21), respectively. Compared to the control group, the diversity of isolated Aeromonas spp. was decreased in the treatment groups and the minimal inhibitory concentration (MIC) of resistant isolates was enhanced from 32 to 256 μg mL-1 with the treatment of tetracycline in time- and dose-dependent manners. Furthermore, the abundance of most genes was increased in treatment groups and efflux genes mainly responded to the stress of tetracycline with an average level of 1.0 × 10-2. After treatment with tetracycline, the predominant species were changed both at phylum and genus levels. The present study explored the impact of tetracycline on gut microbiota of goldfish at environmentally realistic concentrations for the first time and our findings will provide a reference for characterizing the microbiome of fish in the natural environment.
Collapse
Affiliation(s)
- Jia Jia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mengqian Cheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xue Xue
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yongjing Guan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
20
|
Peng Q, Chen Y, Ding L, Zhao Z, Yan P, Storey KB, Shi H, Hong M. Early-life intestinal microbiome in Trachemys scripta elegans analyzed using 16S rRNA sequencing. PeerJ 2020; 8:e8501. [PMID: 32071814 PMCID: PMC7007735 DOI: 10.7717/peerj.8501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 01/01/2020] [Indexed: 12/15/2022] Open
Abstract
During the early-life period, the hatchlings of red-eared slider turtles (Trachemys scripta elegans) rely on their own post-hatching internal yolk for several days before beginning to feed. The gut microbiome is critical for the adaptation of organisms to new environments, but, to date, how the microbiome taxa are assembled during early life of the turtle is unknown. In this study, the intestinal microbiome of red-eared slider hatchlings (fed on commercial particle food) was systematically analyzed at four different growth stages (0 d, 10 d, 20 d, 30 d) by a high-throughput sequencing approach. Results showed that the dominant phyla were Firmicutes (58.23%) and Proteobacteria (41.42%) at 0-day, Firmicutes (92.94%) at 10-day, Firmicutes (67.08%) and Bacteroidetes (27.17%) at 20-day, and Firmicutes (56.46%), Bacteroidetes (22.55%) and Proteobacteria (20.66%) at 30-day post-hatching. Members of the Bacteroidaceae family were absent in 0-day and 10-day turtles, but dominated in 20-day and 30-day turtles. The abundance of Clostridium also showed the highest value in 10-day turtles. The richness of the intestinal microbiomes was lower at 0-day and 30-day than that at 10-day and 20-day, while the diversity was higher at 10-day and 30-day than that at 0-day and 20-day. The results endowed the turtles with an ability to enhance their tolerance to the environment.
Collapse
Affiliation(s)
- Qin Peng
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Yahui Chen
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Li Ding
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Zimiao Zhao
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Peiyu Yan
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | | | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| | - Meiling Hong
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, Hainan, China
| |
Collapse
|
21
|
Effect of Dietary Supplementation of Lactobacillus Casei YYL3 and L. Plantarum YYL5 on Growth, Immune Response and Intestinal Microbiota in Channel Catfish. Animals (Basel) 2019; 9:ani9121005. [PMID: 31757039 PMCID: PMC6941169 DOI: 10.3390/ani9121005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/09/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Channel catfish became one of the most efficient aquaculture species due to its fast growth and considerable commercial importance, however, the intensive farming of these fish resulted in disease pressure and the eutrophic conditions. In this study, we isolated two strains of lactobacillus, Lactobacilluscasei YYL3 and L. plantarum YYL5, which can be potentially used as feed additives to promote the growth performance, disease resistance against Edwardsiellaictaluri, and dramatically change the composition of intestinal microbiota of channel catfish. Abstract The purpose of this study is to investigate the effect of probiotics L. casei YYL3 (Lc) and L. plantarum YYL5 (Lp) on growth performance, innate immunity, disease resistance and intestinal microbiota of channel catfish. A total of 252 catfish (67.20 ± 1.46 g) were randomly divided into 3 groups which were fed with basal diet, Lc-added (3.0 × 108 cfu/g) or Lp-added (3.0 × 108 cfu/g) diets, respectively. After 4 weeks of feeding, Lc significantly enhanced the growth and feed utilization of channel catfish compared with the control group (CG). Following that, the catfish were challenged with an intraperitoneal injection of 200 μL of the pathogenic E.ictaluri (2.0 × 106 cfu/mL), the relative percent survival of Lc and Lp were 38.28% and 12.76%, respectively. High-throughput sequencing indicated Lc and Lp reduced the alpha diversity of the intestinal microbiota in channel catfish. Lactobacillus were overwhelming in the guts during probiotics treatment, but almost vanished away after 2 weeks post-cessation of probiotics administration. Compared to CG, Lc and Lp resulted in an increased abundance of Pseudomonas and decreased amount of Aeromonas. Functional analysis revealed that Lc treatment upregulated the relative abundance of Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways including lipid metabolism, metabolism of other amino acids, metabolism of terpenoids and polyketides, xenobiotics biodegradation and metabolism, and nucleotide metabolism. Combined, our data revealed that Lc, as a feed additive at 3.0 × 108 cfu/g, could promote the growth performance, disease resistance and dramatically change the composition of intestinal microbiota of channel catfish.
Collapse
|
22
|
Reinhart EM, Korry BJ, Rowan-Nash AD, Belenky P. Defining the Distinct Skin and Gut Microbiomes of the Northern Pike ( Esox lucius). Front Microbiol 2019; 10:2118. [PMID: 31572326 PMCID: PMC6751255 DOI: 10.3389/fmicb.2019.02118] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/28/2019] [Indexed: 12/22/2022] Open
Abstract
The microbiome of freshwater fish has important implications for both commercial and recreational fishing because it can have significant impacts on host heath, spoilage rates, and susceptibility to disease. The aqueous environment serves as a possible avenue for continuous introduction of microbes to an animal host, but little is known about how the surrounding microbiota contribute to piscine microbiomes. To better understand the composition of the fish microbiome exposed to the natural environment, we profiled the microbial composition of the gut and the skin mucosal surface (SMS) of northern pike (Esox lucius) and the surrounding river water. We collected fish samples from eight sites along a single river in southwestern Quebec, Canada and analyzed the microbial composition via 16S rRNA sequencing. Our results reveal robust taxonomic differences between the SMS and the gut, indicating a divergence between the microbiomes. The gut community was characterized by a lower alpha diversity compared to the SMS and a large proportion of Cetobacterium, a genus previously linked to carnivorous species. On the other hand, the SMS was more similar to the water than the gut at the family level but divergent at lower taxonomic levels, with fewer than 30% of amplicon sequence variants (ASVs) shared between the SMS and water. In total, our results suggest the establishment of distinct communities across the two fish sites, as well as a clear separation from the microbes in surrounding waters. These data indicate that despite continuous exposure to water, pike are able to establish and maintain unique microbial communities.
Collapse
Affiliation(s)
| | | | | | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, United States
| |
Collapse
|
23
|
Faber-Hammond JJ, Coyle KP, Bacheller SK, Roberts CG, Mellies JL, Roberts RB, Renn SCP. The intestinal environment as an evolutionary adaptation to mouthbrooding in the Astatotilapia burtoni cichlid. FEMS Microbiol Ecol 2019; 95:5315751. [PMID: 30753545 DOI: 10.1093/femsec/fiz016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 02/08/2019] [Indexed: 12/13/2022] Open
Abstract
Many of the various parental care strategies displayed by animals are accompanied by a significant reduction in food intake that imposes a substantial energy trade-off. Mouthbrooding, as seen in several species of fish in which the parent holds the developing eggs and fry in the buccal cavity, represents an extreme example of reduced food intake during parental investment and is accompanied by a range of physiological adaptations. In this study we use 16S sequencing to characterize the gut microbiota of female Astatotilapia burtoni cichlid fish throughout the obligatory phase of self-induced starvation during the brooding cycle in comparison to stage-matched females that have been denied food for the same duration. In addition to a reduction of gut epithelial turnover, we find a dramatic reduction in species diversity in brooding stages that recovers upon release of fry and refeeding that is not seen in females that are simply starved. Based on overall species diversity as well as differential abundance of specific bacterial taxa, we suggest that rather than reflecting a simple deprivation of caloric intake, the gut microbiota is more strongly influenced by physiological changes specific to mouthbrooding including the reduced epithelial turnover and possible production of antimicrobial agents.
Collapse
Affiliation(s)
| | - Kaitlin P Coyle
- Department of Biological Sciences and W. M. Keck Center for Behavioral Biology, 3510 Thomas Hall, 112 Derieux Place, North Carolina State University, Raleigh, NC, USA
| | | | | | - Jay L Mellies
- Department of Biology, Reed College, Portland, Oregon, USA
| | - Reade B Roberts
- Department of Biological Sciences and W. M. Keck Center for Behavioral Biology, 3510 Thomas Hall, 112 Derieux Place, North Carolina State University, Raleigh, NC, USA
| | - Suzy C P Renn
- Department of Biology, Reed College, Portland, Oregon, USA
| |
Collapse
|