The interactions between the host immunity and intestinal microorganisms in fish

Applied Microbiology and Biotechnology, Journal Year: 2024, Volume and Issue: 108(1)

Published: Jan. 3, 2024

Language: Английский

---

Influence of host phylogeny and water physicochemistry on microbial assemblages of the fish skin microbiome

FEMS Microbiology Ecology, Journal Year: 2024, Volume and Issue: 100(3)

Published: Feb. 14, 2024

Abstract The skin of fish contains a diverse microbiota that has symbiotic functions with the host, facilitating pathogen exclusion, immune system priming, and nutrient degradation. composition microbiomes varies across species in response to variety stressors, however, there been no systematic analysis these studies evaluate how factors shape microbiomes. Here, we examined 1922 from 36 included 98 nine rearing conditions investigate associations between microbiome, species, water physiochemical factors. Proteobacteria, particularly class Gammaproteobacteria, were present all marine freshwater Acinetobacter, Aeromonas, Ralstonia, Sphingomonas Flavobacterium most abundant genera within microbiomes, Alteromonas, Photobacterium, Pseudoalteromonas, Psychrobacter Vibrio saltwater fish. Our results show different culturing (rearing) environments have small but significant effect on bacterial community compositions. Water temperature, pH, dissolved oxygen concentration, salinity significantly correlated differences beta-diversity not necessarily alpha-diversity. To improve study comparability provide recommendations for approaches analyses sequencing data reproducibility.

Language: Английский

---

A review of soluble factors and receptors involved in fish skin immunity: The tip of the iceberg

Fish & Shellfish Immunology, Journal Year: 2023, Volume and Issue: 145, P. 109311 - 109311

Published: Dec. 19, 2023

The immune system of fish possesses soluble factors, receptors, pathways and cells very similar to those the other vertebrates' system. Throughout evolutionary history, exocrine secretions organisms have accumulated a large reservoir factors that serve protect from microbial pathogens could disrupt mucosal barrier homeostasis. In parallel, diverse set recognition molecules been discovered alert organism presence pathogens. known functions both receptors mentioned above encompass critical aspects host defense, such as pathogen binding neutralization, opsonization, or modulation inflammation if present. cooperate are able initiate most appropriate response in an attempt eliminate before infection can begin. Furthermore, these molecules, working coordination with defence collaboratively erect robust perfectly coordinated complementary specificity, activity tissue distribution. This intricate network constitutes immensely effective mechanism for fish. this context, present review focuses on some main studied last decade skin mucosa teleost However, knowledge is still limited all teleosts. Therefore, further studies suggested throughout would help better understand which proteins involved.

Language: Английский

---

Shotgun Metagenomics Reveals Taxonomic and Functional Patterns of the Microbiome Associated with Barbour’s Seahorse (Hippocampus barbouri)

Marine Biotechnology, Journal Year: 2024, Volume and Issue: 26(4), P. 835 - 841

Published: June 12, 2024

Language: Английский

---

Artificial Selection and the Skin Microbiome Independently Predict Parasite Resistance

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

It is well established that host genetics determine much of hosts response to parasites, but recent research has highlighted the microbiome plays a role in defense against parasites. Interactions between resistance parasites and are widely acknowledged; for example, can modulate immune response, vice versa. However, it remains unclear how system may together influence host's overall In many species males females differ both their genetically-based parasite composition structure associated microbiomes. We therefore expect interactions females, potentially explaining often-observed variation To investigate interact shape we imposed truncation selection on Trinidadian guppies (Poecilia reticulata) specialist ectoparasite Gyrodactylus turnbulli. The 30% with lowest number 'parasite load', during experimental infection founded resistant line, highest load susceptible while randomly chosen uninfected fish control line. After 3-6 generations breeding absence sampled skin-associated from these lines then infected them G. used Dirichlet multinomial modeling (DMM) machine learning identify bacterial community types across evaluated importance line type over time 'infection severity'. Among developed significantly lower severity, higher than any other treatment. males, however, severity lines, there was no difference lines. also found female had tolerance compared or females. This apparent tradeoff supported by analysis individual-level data. host-associated microbiomes explain as genetics, two factors appear independent additive effects severity. Furthermore, post-hoc test showed model including artificial better at models either variable alone. Our results suggest an active interaction not passive reflection genetics.

Language: Английский

---

Effect of Anesthesia in the Skin Mucus Microbiome of Atlantic Salmon (Salmo Salar)

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

---

Deciphering taxonomic and functional patterns of microbial communities associated with the tiger tail seahorse (Hippocampus comes)

Physiological Genomics, Journal Year: 2024, Volume and Issue: 56(8), P. 590 - 595

Published: July 8, 2024

Gaining insight into the diversity, structure, and metabolic functions of microbial communities is essential for understanding their roles in host health ecosystem dynamics. However, research on seahorse-associated microbiome remains limited, despite these threatened fish facing increasing human pressures worldwide. Here, we explored diversity skin gut tiger tail seahorse (

Language: Английский

---

Ecological filtering drives rapid spatiotemporal dynamics in fish skin microbiomes

Molecular Ecology, Journal Year: 2024, Volume and Issue: 33(18)

Published: Aug. 19, 2024

Abstract Skin microbiomes provide vital functions, yet knowledge about the drivers and processes structuring their species assemblages is limited—especially for non‐model organisms. In this study, fish skin microbiome was assessed by high throughput sequencing of amplicon sequence variants from metabarcoding V3–V4 regions in 16S rRNA gene on hosts subjected to following experimental manipulations: (i) translocation between fresh brackish water habitats investigate role environment; (ii) treatment with an antibacterial disinfectant reboot community assembly priority effects; (iii) maintained alone or pairs study social environment inter‐host dispersal microbes. The results revealed that harbour a highly dynamic microbial composition distinct bacterioplankton communities ambient water. Microbiome first diverged as effect either freshwater habitat. When individuals were translocated back water, converged towards summary, external environmental conditions individual‐specific factors jointly determined dynamics, whereas had negligible effects. dynamics seemingly non‐affected treatment, pointing resilience disturbance. emphasised inter‐individual variability unexplained variation found many host‐microbiome systems, although mechanistic underpinnings remain be identified.

Language: Английский

---

Characterization of Bacterial Communities on Trout Skin and Eggs in Relation to Saprolegnia parasitica Infection Status

Microorganisms, Journal Year: 2024, Volume and Issue: 12(8), P. 1733 - 1733

Published: Aug. 22, 2024

We have investigated the changes in microbial communities on surface of trout eggs and skin adult relation to presence Saprolegnia parasitica. This pathogen causes saprolegniosis, a disease responsible for significant losses salmonid farms hatcheries. It is known from other systems that host-associated microbiome plays crucial role defence against pathogens, but if predominates, this can lead dysbiosis. However, analyses effects S. parasitica diversity, composition, function fish are scarce. Thus, we collected swabs injured healthy (N = 12), which differed load, three different Croatia (Kostanjevac, Radovan, Solin), while egg samples 12) were infected with laboratory. Illumina sequencing V4 region 16S rRNA marker gene showed infection reduced diversity eggs, as evidenced by decreased Pielou’s evenness Shannon’s indices. further determined whether bacterial genera relative abundance >5.0% egg/skin present at significantly abundances The results shown some genera, such Pseudomonas Flavobacterium, surface. On hand, taxa, Acinetobacter Janthinobacterium, well Aeromonas, more abundant diseased skin, respectively. Finally, beta (weighted UniFrac, unweighted Bray–Curtis) sampling location (i.e., farm), along status, also has influence communities’ composition demonstrating strong environment shaping host microbiome. Overall, was associated structure skin/egg obtained could support development new strategies management saprolegniosis aquaculture.

Language: Английский

---

Fish skin as a model system for studies of regeneration and drug delivery studies

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 391 - 430

Published: Nov. 29, 2024

---