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Buthgamuwa I, Fenelon JC, Roser A, Meer H, Johnston SD, Dungan AM. Gut microbiota in the short-beaked echidna (Tachyglossus Aculeatus) shows stability across gestation. Microbiologyopen 2023; 12:e1392. [PMID: 38129978 PMCID: PMC10721944 DOI: 10.1002/mbo3.1392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/05/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Indigenous gut microbial communities (microbiota) play critical roles in health and may be especially important for the mother and fetus during pregnancy. Monotremes, such as the short-beaked echidna, have evolved to lay and incubate an egg, which hatches in their pouch where the young feeds. Since both feces and eggs pass through the cloaca, the fecal microbiota of female echidnas provides an opportunity for vertical transmission of microbes to their offspring. Here, we characterize the gut/fecal microbiome of female short-beaked echidnas and gain a better understanding of the changes that may occur in their microbiome as they go through pregnancy. Fecal samples from four female and five male echidnas were obtained from the Currumbin Wildlife Sanctuary in Queensland and sequenced to evaluate bacterial community structure. We identified 25 core bacteria, most of which were present in male and female samples. Genera such as Fusobacterium, Bacteroides, Escherichia-Shigella, and Lactobacillus were consistently abundant, regardless of sex or gestation stage, accounting for 58.00% and 56.14% of reads in male and female samples, respectively. The echidna microbiome remained stable across the different gestation stages, though there was a significant difference in microbiota composition between male and female echidnas. This study is the first to describe the microbiome composition of short-beaked echidnas across reproductive phases and allows the opportunity for this novel information to be used as a metric of health to aid in the detection of diseases triggered by microbiota dysbiosis.
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Affiliation(s)
- Isini Buthgamuwa
- School of BioSciencesUniversity of MelbourneMelbourneVictoriaAustralia
| | - Jane C. Fenelon
- School of BioSciencesUniversity of MelbourneMelbourneVictoriaAustralia
- Colossal Laboratories and BiosciencesDallasTexasUSA
| | - Alice Roser
- Currumbin Wildlife SanctuaryCurrumbinQueenslandAustralia
| | - Haley Meer
- Currumbin Wildlife SanctuaryCurrumbinQueenslandAustralia
| | - Stephen D. Johnston
- School of EnvironmentThe University of QueenslandGattonQueenslandAustralia
- School of Veterinary ScienceThe University of QueenslandGattonQueenslandAustralia
| | - Ashley M. Dungan
- School of BioSciencesUniversity of MelbourneMelbourneVictoriaAustralia
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2
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Fronton F, Ferchiou S, Caza F, Villemur R, Robert D, St-Pierre Y. Insights into the circulating microbiome of Atlantic and Greenland halibut populations: the role of species-specific and environmental factors. Sci Rep 2023; 13:5971. [PMID: 37045892 PMCID: PMC10097863 DOI: 10.1038/s41598-023-32690-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/31/2023] [Indexed: 04/14/2023] Open
Abstract
Establishing long-term microbiome-based monitoring programs is critical for managing and conserving wild fish populations in response to climate change. In most cases, these studies have been conducted on gut and, to a lesser extent, skin (mucus) microbiomes. Here, we exploited the concept of liquid biopsy to study the circulating bacterial microbiome of two Northern halibut species of economic and ecological importance. Amplification and sequencing of the 16S rRNA gene were achieved using a single drop of blood fixed on FTA cards to identify the core blood microbiome of Atlantic and Greenland halibut populations inhabiting the Gulf of St. Lawrence, Canada. We provide evidence that the circulating microbiome DNA (cmDNA) is driven by genetic and environmental factors. More specifically, we found that the circulating microbiome signatures are species-specific and vary according to sex, size, temperature, condition factor, and geographical localization. Overall, our study provides a novel approach for detecting dysbiosis signatures and the risk of disease in wild fish populations for fisheries management, most notably in the context of climate change.
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Affiliation(s)
- Fanny Fronton
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - Sophia Ferchiou
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - France Caza
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - Richard Villemur
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - Dominique Robert
- Institut des Sciences de la Mer, Université du Québec à Rimouski, 310, allée des Ursulines, C.P. 3300, Rimouski, QC, G5L 3A1, Canada
| | - Yves St-Pierre
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada.
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3
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Zhang Y, Qi X, Zhang Z, Jin Z, Wang G, Ling F. Effects of dietary Cetobacterium somerae on the intestinal health, immune parameters and resistance against Nocardia seriolae of largemouth bass, Micropterus salmoides. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108693. [PMID: 36940785 DOI: 10.1016/j.fsi.2023.108693] [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: 01/15/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Largemouth bass (Micropterus salmoides), one of the most important freshwater commercial fish species has been widely cultivated in China. In recent years, the nocardiosis caused by Nocardia seriolae has greatly damaged the M. salmoides industry and there is no effective treatment at present. Currently, Cetobacterium somerae, the predominant bacteria in the gut of many freshwater fishes has been reported to be associated with fish health. However, whether the native C. somerae could protect the host from N. seriolae is unclear. In this study, M. salmoides were fed with three different diets, including control diet (CD), low C. somerae diet (106 CFU/g as LD) and high C. somerae diet (108 CFU/g as HD). After 8-week feeding, growth performance, gut health index, serum enzyme activities and the expression of inflammation-related genes were tested. Results showed that the LD and HD diets had no adverse effects on the growth performance. Moreover, dietary HD enhanced gut barrier and reduced intestinal ROS and ORP, as well as increased serum enzyme activities including ACP, AKP, SOD and LZM compared to the CD group. In addition, the HD diet significantly up-regulated the expression of TNF-α, IL8, IL-1β and IL15, while down-regulating the expression of TGF-β1 and IL10 in kidney. Moreover, the expression of antibacterial genes was significantly increased in HD group after being challenged by N. seriolae. And the fish fed HD diet exhibited higher survival rate (57.5%) than that in CD (37.5%) and LD groups (42.5%). To summarize, our study demonstrates that dietary HD can enhance gut health, improve immune response and strengthen pathogen resistance, suggesting that C. somerae is a potential probiotic for defending against N. seriolae infection in M. salmoides.
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Affiliation(s)
- Yong Zhang
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Xiaozhou Qi
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Zhongyu Zhang
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Zhanlin Jin
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Gaoxue Wang
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China; Key Laboratory of Livestock Biology, Northwest A&F University, China.
| | - Fei Ling
- Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China; Key Laboratory of Livestock Biology, Northwest A&F University, China.
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4
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Weisse L, Héchard Y, Moumen B, Delafont V. Here, there and everywhere: Ecology and biology of the Dependentiae phylum. Environ Microbiol 2023; 25:597-605. [PMID: 36510838 DOI: 10.1111/1462-2920.16307] [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: 09/28/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Our view of bacterial diversity has been dramatically impacted by cultivation-independent approaches such as metagenomics and 16S rRNA gene sequencing. Consequently, most bacterial phyla known to date are only documented by the presence of DNA sequences in databases and lack cultivated representatives. This bacterial majority that is yet-to-be cultivated, is forming the 'Microbial Dark Matter', (MDM) a consortium, whose ecology and biology remain largely unexplored. The Candidatus Dependentiae stands as one of many phyla within this MDM, found worldwide in various environments. Genomic evidence suggests ancestral, unusual adaptations of all Ca. Dependentiae to a host dependent lifestyle. In line with this, protists appear to be important for Ca. Dependentiae biology, as revealed by few recent studies, which enabled their growth in laboratory through host cultivation. However, the Ca. Dependentiae still remain to this day a poorly documented phylum. The present review aims to summarize the current knowledge accumulated on this often found, but rarely highlighted, bacterial phylum.
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Affiliation(s)
- Louis Weisse
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, CNRS UMR 7267, Poitiers, France
| | - Yann Héchard
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, CNRS UMR 7267, Poitiers, France
| | - Bouziane Moumen
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, CNRS UMR 7267, Poitiers, France
| | - Vincent Delafont
- Laboratoire Ecologie et Biologie des Interactions, Université de Poitiers, CNRS UMR 7267, Poitiers, France
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5
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Chai L, Wang H, Li X, Wang H. Comparison of the characteristics of gut microbiota response to lead in Bufo gargarizans tadpole at different developmental stages. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:20907-20922. [PMID: 36261638 DOI: 10.1007/s11356-022-23671-9] [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: 06/08/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
In amphibians, lead (Pb) exposure could alter the composition and structure of gut microbiota, but changes involving microbiota of several successive phases following Pb exposure have been less studied. In the present study, we compared the effects of Pb exposure on morphological parameters and gut microbiota of Bufo gargarizans at Gosner stage (Gs) 33, Gs36, and Gs42. Our results showed that total length (TL), snout-vent length (SVL), and body wet weight (TW) of B. gargarizans at Gs33, as well as TL and SVL at Gs42, were significantly increased after Pb exposure. In addition, high-throughput sequencing analysis indicated that gut microbiota has distinct responses to Pb exposure at different developmental stages. The diversity of gut microbiota was significantly reduced under Pb exposure at Gs33, while it was significantly increased at Gs42. In terms of community composition, Spirochaetota, Armatimonadota, and Patescibacteria appeared in the control groups at Gs42, but not after Pb treatment. Furthermore, functional prediction indicated that the relative abundance of metabolism pathway was significantly decreased at Gs33 and Gs36, and significantly increased at Gs42. Our results fill an important knowledge gap and provide comparative information on the gut microbiota of tadpoles at different developmental stages following Pb exposure.
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Affiliation(s)
- Lihong Chai
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University, Xi'an, 710062, China
| | - Hemei Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, China
| | - Xinyi Li
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongyuan Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, China.
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Morshed SM, Chen YY, Lin CH, Chen YP, Lee TH. Freshwater transfer affected intestinal microbiota with correlation to cytokine gene expression in Asian sea bass. Front Microbiol 2023; 14:1097954. [PMID: 37089546 PMCID: PMC10117908 DOI: 10.3389/fmicb.2023.1097954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/22/2023] [Indexed: 04/25/2023] Open
Abstract
As a catadromous fish, Asian sea bass (Lates calcarifer) juveniles migrate from seawater (SW) to freshwater (FW) for growth and development. During migration, they undergo physiological changes to acclimate to environmental salinity. Thus, it is crucial to understand how SW-to-FW migration affects the gut microbiota of catadromous fish. To the best of our knowledge, no study has revealed the effects of transfer to hypotonic environments on a catadromous fish microbiota. In this study, we aimed to determine the effects of FW transfer on the microbiota and cytokine gene expression in the intestines of juvenile catadromous Asian sea bass. The relationship between the water and the gut microbiota of this euryhaline species was also examined. We found that FW transfer affected both mucosa- and digesta-associated microbiota of Asian sea bass. Plesiomonas and Cetobacterium were dominant in both the mucosa- and digesta-associated microbiota of FW-acclimated sea bass. The pathogenic genera Vibrio, Staphylococcus, and Acinetobacter were dominant in the SW group. Although dominant fish microbes were present in the water, fish had their own unique microbes. Vitamin B6 metabolism was highly expressed in the FW fish microbiota, whereas arginine, proline, and lipid metabolism were highly expressed in the SW fish microbiota. Additionally, the correlation between cytokine gene expression and microbiota was found to be affected by FW transfer. Taken together, our results demonstrated that FW transfer altered the composition and functions of mucosa- and digesta-associated microbiota of catadromous Asian sea bass intestines, which correlated with cytokine gene expression.
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Affiliation(s)
- Syed Monzur Morshed
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Yi Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Chia-Hao Lin
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Department of Marine Biotechnology, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Yen-Po Chen
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
- *Correspondence: Yen-Po Chen,
| | - Tsung-Han Lee
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Tsung-Han Lee,
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7
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Román-Camacho JJ, García-García I, Santos-Dueñas IM, Ehrenreich A, Liebl W, García-Martínez T, Mauricio JC. Combining omics tools for the characterization of the microbiota of diverse vinegars obtained by submerged culture: 16S rRNA amplicon sequencing and MALDI-TOF MS. Front Microbiol 2022; 13:1055010. [PMID: 36569054 PMCID: PMC9767973 DOI: 10.3389/fmicb.2022.1055010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Vinegars elaborated in southern Spain are highly valued all over the world because of their exceptional organoleptic properties and high quality. Among the factors which influence the characteristics of the final industrial products, the composition of the microbiota responsible for the process and the raw material used as acetification substrate have a crucial role. The current state of knowledge shows that few microbial groups are usually present throughout acetification, mainly acetic acid bacteria (AAB), although other microorganisms, present in smaller proportions, may also affect the overall activity and behavior of the microbial community. In the present work, the composition of a starter microbiota propagated on and subsequently developing three acetification profiles on different raw materials, an alcohol wine medium and two other natural substrates (a craft beer and fine wine), was characterized and compared. For this purpose, two different "omics" tools were combined for the first time to study submerged vinegar production: 16S rRNA amplicon sequencing, a culture-independent technique, and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS), a culture-dependent method. Analysis of the metagenome revealed numerous taxa from 30 different phyla and highlighted the importance of the AAB genus Komagataeibacter, which was much more frequent than the other taxa, and Acetobacter; interestingly, also archaea from the Nitrososphaeraceae family were detected by 16S rRNA amplicon sequencing. MALDI-TOF MS confirmed the presence of Komagataeibacter by the identification of K. intermedius. These tools allowed for identifying some taxonomic groups such as the bacteria genera Cetobacterium and Rhodobacter, the bacteria species Lysinibacillus fusiformis, and even archaea, never to date found in this medium. Definitely, the effect of the combination of these techniques has allowed first, to confirm the composition of the predominant microbiota obtained in our previous metaproteomics approaches; second, to identify the microbial community and discriminate specific species that can be cultivated under laboratory conditions; and third, to obtain new insights on the characterization of the acetification raw materials used. These first findings may contribute to improving the understanding of the microbial communities' role in the vinegar-making industry.
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Affiliation(s)
- Juan J. Román-Camacho
- Department of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence ceiA3, University of Córdoba, Córdoba, Spain
| | - Isidoro García-García
- Department of Inorganic Chemistry and Chemical Engineering, Agrifood Campus of International Excellence ceiA3, Nano Chemistry Institute (IUNAN), University of Córdoba, Córdoba, Spain,*Correspondence: Isidoro García-García,
| | - Inés M. Santos-Dueñas
- Department of Inorganic Chemistry and Chemical Engineering, Agrifood Campus of International Excellence ceiA3, Nano Chemistry Institute (IUNAN), University of Córdoba, Córdoba, Spain
| | - Armin Ehrenreich
- Department of Microbiology, School of Life Sciences, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Wolfgang Liebl
- Department of Microbiology, School of Life Sciences, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Teresa García-Martínez
- Department of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence ceiA3, University of Córdoba, Córdoba, Spain
| | - Juan C. Mauricio
- Department of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence ceiA3, University of Córdoba, Córdoba, Spain
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Zhang Z, Fan Z, Yi M, Liu Z, Ke X, Gao F, Cao J, Wang M, Chen G, Lu M. Characterization of the core gut microbiota of Nile tilapia (Oreochromis niloticus): indication of a putative novel Cetobacterium species and analysis of its potential function on nutrition. Arch Microbiol 2022; 204:690. [DOI: 10.1007/s00203-022-03301-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/27/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
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Bereded NK, Abebe GB, Fanta SW, Curto M, Waidbacher H, Meimberg H, Domig KJ. The gut bacterial microbiome of Nile tilapia (Oreochromis niloticus) from lakes across an altitudinal gradient. BMC Microbiol 2022; 22:87. [PMID: 35379180 PMCID: PMC8978401 DOI: 10.1186/s12866-022-02496-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/17/2022] [Indexed: 12/27/2022] Open
Abstract
Background Microorganisms inhabiting the gut play a significant role in supporting fundamental physiological processes of the host, which contributes to their survival in varied environments. Several studies have shown that altitude affects the composition and diversity of intestinal microbial communities in terrestrial animals. However, little is known about the impact of altitude on the gut microbiota of aquatic animals. The current study examined the variations in the gut microbiota of Nile tilapia (Oreochromis niloticus) from four lakes along an altitudinal gradient in Ethiopia by using 16S rDNA Illumina MiSeq high-throughput sequencing. Results The results indicated that low-altitude samples typically displayed greater alpha diversity. The results of principal coordinate analysis (PCoA) showed significant differences across samples from different lakes. Firmicutes was the most abundant phylum in the Lake Awassa and Lake Chamo samples whereas Fusobacteriota was the dominant phylum in samples from Lake Hashengie and Lake Tana. The ratio of Firmicutes to Bacteroidota in the high-altitude sample (Lake Hashengie, altitude 2440 m) was much higher than the ratio of Firmicutes to Bacteroidota in the low altitude population (Lake Chamo, altitude 1235 m). We found that the relative abundances of Actinobacteriota, Chloroflexi, Cyanobacteria, and Firmicutes were negatively correlated with altitude, while Fusobacteriota showed a positive association with altitude. Despite variability in the abundance of the gut microbiota across the lakes, some shared bacterial communities were detected. Conclusions In summary, this study showed the indirect influence of altitude on gut microbiota. Altitude has the potential to modulate the gut microbiota composition and diversity of Nile tilapia. Future work will be needed to elucidate the functional significance of gut microbiota variations based on the geographical environment. Significance and impact of the study Our study determined the composition and diversity of the gut microbiota in Nile tilapia collected from lakes across an altitude gradient. Our findings greatly extend the baseline knowledge of fish gut microbiota in Ethiopian lakes that plays an important role in this species sustainable aquaculture activities and conservation. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02496-z.
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Affiliation(s)
- Negash Kabtimer Bereded
- University of Natural Resources and Life Sciences, Vienna, Austria. .,Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190, Vienna, Austria. .,Department of Biology, Bahir Dar University, Post Code 79, Bahir Dar, Ethiopia.
| | | | - Solomon Workneh Fanta
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Post Code 26, Bahir Dar, Ethiopia
| | - Manuel Curto
- Department of Integrative Biology and Biodiversity Research, Institute for Integrative Nature Conservation Research, Gregor Mendel Strasse 33, 1180, Vienna, Austria.,MARE-Marine and Environmental Sciences Centre, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1049-001, Lisboa, Portugal
| | - Herwig Waidbacher
- Department of Water, Atmosphere and Environment, Institute of Hydrobiology and Aquatic Ecosystem Management, Gregor Mendel Strasse 33, 1180, Vienna, Austria
| | - Harald Meimberg
- Department of Integrative Biology and Biodiversity Research, Institute for Integrative Nature Conservation Research, Gregor Mendel Strasse 33, 1180, Vienna, Austria
| | - Konrad J Domig
- University of Natural Resources and Life Sciences, Vienna, Austria.,Department of Food Science and Technology, Institute of Food Science, Muthgasse 18, 1190, Vienna, Austria
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Xie M, Xie Y, Li Y, Zhou W, Zhang Z, Yang Y, Olsen RE, Ringø E, Ran C, Zhou Z. Stabilized fermentation product of Cetobacterium somerae improves gut and liver health and antiviral immunity of zebrafish. FISH & SHELLFISH IMMUNOLOGY 2022; 120:56-66. [PMID: 34780975 DOI: 10.1016/j.fsi.2021.11.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Probiotics are widely used in aquafeeds and exhibited beneficial effects on fish by improving host health and resisting pathogens. However, probiotics applied to aquaculture are mainly from terrestrial sources instead of the host animal. The purpose of the work was to evaluate the effects of stabilized fermentation product of commensal Cetobacterium somerae XMX-1 on gut, liver health and antiviral immunity of zebrafish. A total of 240 zebrafish were assigned to the control (fed a basal diet) and XMX-1 group (fed a basal diet with 10 g XMX-1/kg diet). After four weeks feeding, growth performance, feed utilization, hepatic steatosis score, TAG, lipid metabolism related genes and serum ALT were evaluated. Furthermore, serum LPS, the expression of Hif-1α, intestinal inflammation score, antioxidant capability and gut microbiota were tested. The survival rate and the expression of antiviral genes were analyzed after challenge by spring viremia of carp virus (SVCV). Results showed that dietary XMX-1 did not affect growth of zebrafish. However, dietary XMX-1 significantly decreased the level of serum LPS, intestinal inflammation score and intestinal MDA, as well as increased T-AOC and the expression of Hif-1α in zebrafish intestine (p < 0.05). Furthermore, XMX-1 supplementation decreased the relative abundance of Proteobacteria and increased Firmicutes and Actinobacteria. Additionally, XMX-1 supplementation significantly decreased hepatic steatosis score, hepatic TAG, serum ALT and increased the expression of lipolysis genes versus control (p < 0.05). Zebrafish fed XMX-1 diet exhibited higher survival rate after SVCV challenge. Consistently, dietary XMX-1 fermentation product increased the expression of IFNφ2 and IFNφ3 after 2 days of SVCV challenge and the expression of IFNφ1, IFNφ2 and MxC after 4 days of SVCV challenge in the spleen in zebrafish versus control (p < 0.05). In conclusion, our results indicate that dietary XMX-1 can improve liver and gut health, while enhancing antiviral immunity of zebrafish.
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Affiliation(s)
- Mingxu Xie
- Sino-Norway Joint Lab on Fish Gut Microbiota, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Norway-China Joint Lab on Fish Gastrointestinal Microbiota, Institute of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Yadong Xie
- Sino-Norway Joint Lab on Fish Gut Microbiota, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yu Li
- Sino-Norway Joint Lab on Fish Gut Microbiota, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wei Zhou
- Sino-Norway Joint Lab on Fish Gut Microbiota, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhen Zhang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yalin Yang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Rolf Erik Olsen
- Norway-China Joint Lab on Fish Gastrointestinal Microbiota, Institute of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Einar Ringø
- Norway-China Joint Lab on Fish Gastrointestinal Microbiota, Institute of Biology, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Chao Ran
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Zhigang Zhou
- Sino-Norway Joint Lab on Fish Gut Microbiota, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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11
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Hou R, Gan L, Guan F, Wang Y, Li J, Zhou S, Yuan Y. Bioelectrochemically enhanced degradation of bisphenol S: mechanistic insights from stable isotope-assisted investigations. iScience 2021; 24:102014. [PMID: 33490921 PMCID: PMC7809511 DOI: 10.1016/j.isci.2020.102014] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/03/2020] [Accepted: 12/24/2020] [Indexed: 12/04/2022] Open
Abstract
Electroactive microbes is the driving force for the bioelectrochemical degradation of organic pollutants, but the underlying microbial interactions between electrogenesis and pollutant degradation have not been clearly identified. Here, we combined stable isotope-assisted metabolomics (SIAM) and 13C-DNA stable isotope probing (DNA-SIP) to investigate bisphenol S (BPS) enhanced degradation by electroactive mixed-culture biofilms (EABs). Using SIAM, six 13C fully labeled transformation products were detected originating via hydrolysis, oxidation, alkylation, or aromatic ring-cleavage reactions from 13C-BPS, suggesting hydrolysis and oxidation as the initial and key degradation pathways for the electrochemical degradation process. The DNA-SIP results further displayed high 13C-DNA accumulation in the genera Bacteroides and Cetobacterium from the EABs and indicated their ability in the assimilation of BPS or its metabolites. Collectively, network analysis showed that the collaboration between electroactive microbes and BPS assimilators played pivotal roles the improvement in bioelectrochemically enhanced BPS degradation.
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Affiliation(s)
- Rui Hou
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Lin Gan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Fengyi Guan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Yi Wang
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Jibing Li
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, School of Resources and Environment, Fujian Agriculture and Forestry, Fuzhou 350000, China
| | - Yong Yuan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
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