Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides and<i>Saccharomyces cerevisiae</i>) in juvenile rainbow trout (<i>Oncorhynchus mykiss</i>)

Gonçalves, Ana Teresa; Gallardo‐Escárate, Cristian

doi:10.1111/jam.13437

Cited by 62 publications

(42 citation statements)

References 55 publications

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“…water temperature was 9·4°C (Lyons et al ), 12·5°C (Wong et al ) and 14·2–15·4°C (the present study); (ii) different diets and premix; (iii) different sample matrix/tissue used for DNA extraction (e.g. in the Lyons et al ) study the source of genomic DNA was distal intestine (mucous + content), in the study by Wong et al () the genomic DNA source was the middle intestine, whereas in the present study the genomic DNA source was a mixture of mucosa from anterior, middle and posterior parts of the intestine); (iv) different DNA extraction protocols may also affect the results as was previously shown by Kashinskaya et al (); (v) life cycle stage Llewellyn et al (); (vi) differences over time Gonçalves and Gallardo‐Escárate (). But at the same time the variability found could also be related to a great plasticity of the core microbial community of rainbow trout.…”

Section: Discussionmentioning

confidence: 49%

Variations of the intestinal gut microbiota of farmed rainbow trout, Oncorhynchus mykiss (Walbaum), depending on the infection status of the fish

Parshukov

Kashinskaya

Simonov

et al. 2019

J of Applied Microbiology

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Aims The aim of the present study was to investigate the composition of the intestinal microbiota during the acute stage of a bacterial infection to understand how dysbiosis of the gut may influence overall taxonomic hierarchy and diversity, and determine if there exists a bacterial taxon(s) that serve as markers for healthy or diseased rainbow trout (Oncorhynchus mykiss). Methods and Results From July to September 2015, 29 specimens of 3‐year‐old (an average weight from 240·9 ± 37·7 to 850·7 ± 70·1 g) rainbow trout O. mykiss were studied. Next‐generation high‐throughput sequencing of the 16S ribosomal RNA genes was applied to stomach and intestinal samples to compare the impact of infection status on the microbiota of rainbow trout O. mykiss (Walbaum) from the northwest part of Eurasia (Karelian region, Russia). The alpha diversity (Chao1, Simpson and Shannon index) of the microbial community of healthy rainbow trout was significantly higher than in unhealthy fish. The greatest contribution to the gut microbial composition of healthy fish was made by OTU's belonging to Bacillus, Serratia, Pseudomonas, Cetobacterium and Lactobacillus. Microbiota of unhealthy fish in most cases was represented by the genera Serratia, Bacillus and Pseudomonas. In microbiota of unhealthy fish there were also registered unique taxa such as bacteria from the family Mycoplasmataceae and Renibacterium. Analysis of similarities test revealed the significant dissimilarity between the microbiota of stomach and intestine (P ≤ 0·05). Conclusions A substantial finding was the absence of differences between microbial communities of the stomach and intestine in the unhealthy groups if compared with healthy fish. Significance and Impact of the Study These results demonstrated alterations of the gut microbiota of farmed rainbow trout, O. mykiss during co‐infections and can be useful for the development of new strategies for disease control programs.

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Section: Discussionmentioning

confidence: 49%

Variations of the intestinal gut microbiota of farmed rainbow trout, Oncorhynchus mykiss (Walbaum), depending on the infection status of the fish

Parshukov

Kashinskaya

Simonov

et al. 2019

J of Applied Microbiology

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“…OTU_8s. Escherichia was already commonly detected in rainbow trout fed commercial diet (Gonçalves & Gallardo‐Escarate, ; Lowrey et al., ; Lyons et al., ), and soybean protein concentrate induced the presence of Escherichia‐Shigella in the intestine of Atlantic salmon (Green et al., ). Sphingomonas sp.…”

Section: Discussionmentioning

confidence: 99%

Intestinal microbiota in rainbow trout,Oncorhynchus mykiss, fed diets with different levels of fish-based and plant ingredients: A correlative approach with some plasma metabolites

et al. 2018

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The shortage of fish meal and fish oil has led to demonstrate the feasibility of omitting marine ingredients from the diet of rainbow trout. This complete suppression was further studied in the present experiment. Plasma markers indicated that the metabolism was deeply affected in trout fed plant ingredients. The pyrosequencing of reverse transcripts of partial 16S ribosomal RNA revealed the composition of the active bacterial community associated with intestinal mucosa. Most differences appeared between trout fed either a marine diet or a commercial‐like diet with large amounts of plant protein sources and oil. One taxonomic unit of Cetobacterium sp. dominated this microbiota, the overall composition of which was highly variable amongst individuals. This variability in trout fed without marine ingredients was less than in the other dietary groups. At the individual level, the relative prevalence of some bacteria correlated with the level of plasma markers, in particular two distinct taxonomic units of the genus Clostridium, which correlated either with plasma glucose or with several spectral regions containing tyrosine and phenylalanine resonances, detected by 1H‐NMR profiling. Such correlations deserve further investigation for identifying the functional roles of intestinal microbiota.

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“…Disentangling the links between microbiome and fish health is a hot topic, particularly given the growth of the aquaculture industry. In this respect, the effects of pathogens, antibiotics and probiotics on microbiome composition have been subject of several studies showing that significant changes take place (e.g., Carlson, Leonard, Hyde, Petrosino, & Primm, 2017;Gonçalves & Gallardo-Escarate, 2017;Hennersdorf et al, 2016;Li et al, 2016;Llewellyn et al, 2017;Reid et al, 2017).…”

Section: Fish Microbiome: What We Knowmentioning

confidence: 99%

Using fish models to investigate the links between microbiome and social behaviour: The next step for translational microbiome research?

et al. 2019

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Recent research has revealed surprisingly important connections between animals’ microbiome and social behaviour. Social interactions can affect the composition and function of the microbiome; conversely, the microbiome affects social communication by influencing the hosts’ central nervous system and peripheral chemical communication. These discoveries set the stage for novel research focusing on the evolution and physiology of animal social behaviour in relation to microbial transmission strategies. Here, we discuss the emerging roles of teleost fish models and their potential for advancing research fields, linked to sociality and microbial regulation. We argue that fish models, such as the zebrafish (Danio rerio, Cyprinidae), sticklebacks (‎Gasterosteidae), guppies (Poeciliidae) and cleaner–client dyads (e.g., obligate cleaner fish from the Labridae and Gobiidae families and their visiting clientele), will provide valuable insights into the roles of microbiome in shaping social behaviour and vice versa, while also being of direct relevance to the food and ornamental fish trades. The diversity of fish behaviour warrants more interdisciplinary research, including microbiome studies, which should have a strong ecological (field‐derived) approach, together with laboratory‐based cognitive and neurobiological experimentation. The implications of such integrated approaches may be of translational relevance, opening new avenues for future investigation using fish models.

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Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides andSaccharomyces cerevisiae) in juvenile rainbow trout (Oncorhynchus mykiss)

Cited by 62 publications

References 55 publications

Variations of the intestinal gut microbiota of farmed rainbow trout, Oncorhynchus mykiss (Walbaum), depending on the infection status of the fish

Variations of the intestinal gut microbiota of farmed rainbow trout, Oncorhynchus mykiss (Walbaum), depending on the infection status of the fish

Intestinal microbiota in rainbow trout,Oncorhynchus mykiss, fed diets with different levels of fish-based and plant ingredients: A correlative approach with some plasma metabolites

Using fish models to investigate the links between microbiome and social behaviour: The next step for translational microbiome research?

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