scholarly journals Dead or alive: microbial viability treatment reveals both active and inactive bacterial constituents in the fish gut microbiota

2021 ◽  
Author(s):  
T.P.R.A. Legrand ◽  
M.L. Wos‐Oxley ◽  
J.W. Wynne ◽  
L.S. Weyrich ◽  
A.P.A. Oxley
Keyword(s):  
Gut Microbiota ◽  
Microbial Viability ◽  
Fish Gut ◽  
Bacterial Constituents

scholarly journals Response of Fish Gut Microbiota to Toxin-Containing Cyanobacterial Extracts: A Microcosm Study on the Medaka (Oryzias latipes)

2019 ◽  
Vol 6 (6) ◽  
pp. 341-347 ◽  
Author(s):  
Sébastien Duperron ◽  
Sébastien Halary ◽  
Myriam Habiballah ◽  
Alison Gallet ◽  
Hélène Huet ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Oryzias Latipes ◽  
Microcosm Study ◽  
Fish Gut

scholarly journals Host development overwhelms environmental dispersal in governing the ecological succession of zebrafish gut microbiota

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fanshu Xiao ◽  
Wengen Zhu ◽  
Yuhe Yu ◽  
Zhili He ◽  
Bo Wu ◽  
...  
Keyword(s):  
Microbial Community ◽  
Gut Microbiota ◽  
Environmental Effects ◽  
Developmental Stages ◽  
Ecological Succession ◽  
Community Succession ◽  
Fish Gut ◽  
Gut Microbial Community ◽  
Host Development ◽  
Microbial Community Succession

AbstractClarifying mechanisms underlying the ecological succession of gut microbiota is a central theme of gut ecology. Under experimental manipulations of zebrafish hatching and rearing environments, we test our core hypothesis that the host development will overwhelm environmental dispersal in governing fish gut microbial community succession due to host genetics, immunology, and gut nutrient niches. We find that zebrafish developmental stage substantially explains the gut microbial community succession, whereas the environmental effects do not significantly affect the gut microbiota succession from larvae to adult fish. The gut microbiotas of zebrafish are clearly separated according to fish developmental stages, and the degree of homogeneous selection governing gut microbiota succession is increasing with host development. This study advances our mechanistic understanding of the gut microbiota assembly and succession by integrating the host and environmental effects, which also provides new insights into the gut ecology of other aquatic animals.

Therapeutic modulation of fish gut microbiota, a feasible strategy for aquaculture?

Aquaculture ◽  
2021 ◽  
pp. 737050
Author(s):  
Francisco Vargas-Albores ◽  
Luis Rafael Martínez-Córdova ◽  
Adrián Hernández-Mendoza ◽  
Francesco Cicala ◽  
Asunción Lago-Lestón ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Fish Gut

scholarly journals Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish

2013 ◽  
Vol 8 (3) ◽  
pp. 541-551 ◽  
Author(s):  
Lin Ye ◽  
Jon Amberg ◽  
Duane Chapman ◽  
Mark Gaikowski ◽  
Wen-Tso Liu
Keyword(s):  
Gut Microbiota ◽  
Asian Carp ◽  
Microbiota Analysis ◽  
Fish Gut ◽  
And Behavior

scholarly journals Relationships between the Gut Microbiota of Juvenile Black Sea Bream (Acanthopagrus schlegelii) and Associated Environment Compartments in Different Habitats

2021 ◽  
Vol 9 (12) ◽  
pp. 2557
Author(s):  
Peng Sun ◽  
Hui Zhang ◽  
Yazhou Jiang ◽  
Quanxin Gao ◽  
Baojun Tang ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Gut Microbiota ◽  
Black Sea ◽  
Feeding Habits ◽  
Sea Bream ◽  
Rrna Gene ◽  
Ecological Fitness ◽  
Acanthopagrus Schlegelii ◽  
Fish Gut ◽  
Environmental Compartments

The fish-gut microbiota play a key role in the physiology, development, and fitness of its host. An understanding of fish-gut microbial communities and the factors influencing community composition is crucial for improving fish performance. In this study, we compared the gut microbiota of juvenile black sea bream Acanthopagrus schlegelii among habitats: (1) wild, (2) offshore cage-culture, and (3) pond-culture. We also explored the relationships between the gut microbiota and host-associated environmental factors. Gut samples and associated environmental compartments were investigated using 16S rRNA gene sequencing. Our results revealed significant habitat-specific differences among the gut microbiota of juvenile A. schlegelii. Wild populations of juvenile A. schlegelii had more diverse gut microbiota than populations cultured in pond habitats due to their omnivorous feeding habits and the corresponding abundance of natural food resources. Significant variations in the composition, core taxa, and diversity of the microbiota were also found between the gut and the environmental compartments. However, no significant differences were observed among the microbiota of the environmental compartments in the relatively isolated pond habitat. Source tracking analysis recovered connections between the fish-gut microbiota and the diet, water and sediment environmental compartments. This connection was especially strong between the microbiota of the fish gut and that of the diet in the pond habitat: the diet microbiota accounted for 33.48 ± 0.21% of the gut microbiota. Results suggested that all A. schlegelii shared a core gut microbiota, regardless of differences in diet and habitat. However, environmental factors associated with both diet and habitat contributed to the significant differences between the gut microbiota of fish living in different habitats. To the authors’ knowledge, this study presents the first comparison of gut microbiota among juvenile A. schlegelii with different diets and habitats. These findings enrich our understanding of the gut microbiota of A. schlegelii and help to clarify the interaction between gut microbiota and environmental factors. Our results may also help to guide and improve fish ecological fitness via the regulation of gut microbiota, thereby increasing the efficacy of stock enhancement programs for this species.

scholarly journals Resistance and Resilience of Fish Gut Microbiota to Silver Nanoparticles

mSystems ◽  
2021 ◽  
Author(s):  
Pubo Chen ◽  
Jie Huang ◽  
Liuyu Rao ◽  
Wengen Zhu ◽  
Yuhe Yu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Gut Microbiota ◽  
Microbial Communities ◽  
Zebrafish Model ◽  
Environmental Disturbances ◽  
Fish Gut ◽  
Ecological Mechanisms

Understanding the ecological mechanisms governing the resistance and resilience of microbial communities is a key issue to predict their responses to environmental disturbances. Using the zebrafish model, we wanted to clarify the potential mechanisms governing the resistance and resilience of gut microbiota after exposure to silver nanoparticles (AgNPs).

scholarly journals Erratum: Fish gut microbiota analysis differentiates physiology and behavior of invasive Asian carp and indigenous American fish

2016 ◽  
Vol 10 (8) ◽  
pp. 2076-2076 ◽  
Author(s):  
Lin Ye ◽  
Jon Amberg ◽  
Duane Chapman ◽  
Mark Gaikowski ◽  
Wen-Tso Liu
Keyword(s):  
Gut Microbiota ◽  
Asian Carp ◽  
Microbiota Analysis ◽  
Fish Gut ◽  
And Behavior

scholarly journals Microbiota Landscape of Gut System of Guppy Fish (Poecilia reticulata) Plays an Outstanding Role in Adaptation Mechanisms

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Christian Aimé Kayath ◽  
Armel Ibala Zamba ◽  
Joseph Goma-Tchimbakala ◽  
Victor Mamonékéné ◽  
Gloire Moniceth Mombo Makanga ◽  
...  
Keyword(s):  
Trace Metals ◽  
Gut Microbiota ◽  
Poecilia Reticulata ◽  
Inhibitory Concentration ◽  
Amplicon Sequencing ◽  
16S Rrna Amplicon Sequencing ◽  
Representative Species ◽  
Fish Gut ◽  
Metals Tolerance ◽  
Guppy Fish

Microbial consortium that is present in fish gut systems works together to achieve unknown specific roles. Here, we collected guppy fish from hydrocarbon- and trace metal-contaminated wastewater to assess the relationships between gut microbiota and host fish adaptation. Targeted genes and 16S rRNA amplicon sequencing have been used to identify gut bacteria of guppies. Mineral-conditioned medium contributes to identify bacteria with the ability to grow and/or to tolerate hydrocarbon and trace metals. Additionally, trace metals’ tolerance minimum inhibitory concentration (MIC) of microbiota was evaluated. We first isolated bacteria from the gut system, and we showed thatBacillusspp.,Staphylococcusspp.,Shigellaspp.,Salmonellaspp,Pseudomonasspp.,Citrobacterspp.,Salmonella entericassp.arizonaesp.,Enterobacterspp, andAcinetobacterspp. are part of guppy gut microbiota. Some representative species are able to degrade and/or tolerate gasoline and/or diesel fuel hydrocarbons. Tolerance to trace metals was observed in Gram-positive and Gram-negative bacteria. We showed that minimal inhibitory concentration (MIC) of some microbiota isolated from gut systems has been found including for mercury (Hg) between 2 and 4‰, cobalt (Co) Co (2 and 5‰), zinc (Zn) (9 and 18‰), and plomb (Pb) (22 and 27‰). Zn and Pb were the trace metals for which the rate of tolerance was significantly higher. Finally, we showed that cytochrome c oxidase is not interfering in presence of trace metals. The working consortium showed that bacteria should work together to achieve their best.

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