Impact of Sublethal Concentrations of Nitrite on Goldfish (Carassius auratus) Microbiomes

Ortiz, Whitney; Carlos‐Shanley, Camila; Huertas, Mar

doi:10.1007/s00248-022-02123-4

Cited by 3 publications

(2 citation statements)

References 54 publications

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“…To our knowledge, however, this dominance of Nitrobacter has not been reported in wild fish populations in the past, although bacteria associated with the metabolism of nitro compounds have been found, albeit at lower levels, in the blood microbiome, gut or skin microbiome of various animals, including bovine and fish 40 , 48 – 50 . Experimentally, however, exposure of goldfish to nitrite has been shown to induce a shift in the gill, nose and skin microbiome toward bacterial communities involved in the nitrogen cycle and the disappearance of taxa generally found in the microbiome 51 . Usually, nitrite, an intermediate stage in the nitrogen balance, should not be detectable in a stable environment as it is rapidly transformed into NO 3 − by biodegrading bacteria such as Nitrobacter or by chemical reaction in the water.…”

Section: Discussionmentioning

confidence: 99%

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod

Fronton,

Villemur,

Robert

et al. 2024

Sci Rep

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Establishing microbiome signatures is now recognized as a critical step toward identifying genetic and environmental factors shaping animal-associated microbiomes and informing the health status of a given host. In the present work, we prospectively collected 63 blood samples of the Atlantic cod population of the Southern Gulf of Saint Lawrence (GSL) and characterized their 16S rRNA circulating microbiome signature. Our results revealed that the blood microbiome signature was dominated at the phylum level by Proteobacteria, Bacteroidetes, Acidobacteria and Actinobacteria, a typical signature for fish populations inhabiting the GSL and other marine ecosystems. At the genus level, however, we identified two distinct cod groups. While the microbiome signature of the first group was dominated by Pseudoalteromonas, a genus we previously found in the microbiome signature of Greenland and Atlantic halibut populations of the GSL, the second group had a microbiome signature dominated by Nitrobacter and Sediminibacterium (approximately 75% of the circulating microbiome). Cods harboring a Nitrobacter/Sediminibacterium-rich microbiome signature were localized in the most southern part of the GSL, just along the northern coast of Cape Breton Island. Atlantic cod microbiome signatures did not correlate with the weight, length, relative condition, depth, temperature, sex, and salinity, as previously observed in the halibut populations. Our study provides, for the first time, a unique snapshot of the circulating microbiome signature of Atlantic cod populations and the potential existence of dysbiotic signatures associated with the geographical distribution of the population, probably linked with the presence of nitrite in the environment.

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Section: Discussionmentioning

confidence: 99%

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod

Fronton,

Villemur,

Robert

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…To our knowledge, however, this dominance of Nitrobacter has not been reported in wild sh populations in the past, although bacteria associated with the metabolism of nitro compounds have been found, albeit at lower levels, in the blood microbiome, gut or skin microbiome of various animals, including bovine and sh [40,[47][48][49]. Experimentally, however, exposure of gold sh to nitrite has been shown to induce a shift in the gill, nose and skin microbiome toward bacterial communities involved in the nitrogen cycle and the disappearance of taxa generally found in the microbiome [50]. Usually, nitrite, an intermediate stage in the nitrogen balance, should not be detectable in a stable environment.…”

Section: Discussionmentioning

confidence: 99%

Divergent bacterial landscapes: Unraveling geographically driven dual microbiomes in Atlantic cod (Gadus morhua) from the southern Gulf of St. Lawrence

Fronton,

Villemur,

Robert

et al. 2023

Preprint

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Background Establishing microbiome signatures is now recognized as a critical step toward identifying genetic and environmental factors shaping animal-associated microbiomes and informing the health status of a given host. In the present work, we prospectively collected blood samples of the Atlantic cod population of the Southern Gulf of Saint Lawrence (GSL) and characterized their 16S rRNA circulating microbiome signature. Results Our results revealed that the blood microbiome signature was dominated at the phylum level by Proteobacteria, Bacteroidetes, Acidobacteria and Actinobacteria, a typical signature for fish populations inhabiting the GSL and other marine ecosystems. At the genus level, however, we identified two distinct cod groups. While the microbiome signature of the first group was dominated by Pseudoalteromonas, a genus we previously found in the microbiome signature of Greenland and Atlantic halibut populations of the GSL, the second group had a microbiome signature dominated by Nitrobacter and Sediminibacterium. Cods harboring a Nitrobacter/Sediminibacterium-rich microbiome signature were localized in the most southern part of the GSL, just along the northern coast of Cape Breton Island. Atlantic cod microbiome signatures did not correlate with the weight, length, relative condition, depth, temperature, sex, and salinity, as previously observed in the halibut populations. Conclusions Our study provides, for the first time, a unique snapshot of the circulating microbiome signature of Atlantic cod populations and the existence of dysbiotic signatures associated with the geographical distribution of the population, probably linked with the presence of nitrite in the environment.

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Inhibition of Salmonella Enteritidis adhesion and biofilm formation by β-glucosidase B from Microbacterium sp. BG28

Atanaskovic,

Moric,

Rokic

et al. 2024

Food Bioscience

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Impact of Sublethal Concentrations of Nitrite on Goldfish (Carassius auratus) Microbiomes

Cited by 3 publications

References 54 publications

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod

Divergent bacterial landscapes: Unraveling geographically driven dual microbiomes in Atlantic cod (Gadus morhua) from the southern Gulf of St. Lawrence

Inhibition of Salmonella Enteritidis adhesion and biofilm formation by β-glucosidase B from Microbacterium sp. BG28

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