Investigating the potential use of an Antarctic variant of Janthinobacterium lividum for tackling antimicrobial resistance in a One Health approach

Baricz, Andreea; Teban, Adela; Chiriac, Cecilia; Szekeres, Edina; Farkas, Anca; Nica, Maria; Dascălu, Amalia; Oprişan, C; Lavín, Paris; Coman, Cristian

doi:10.1038/s41598-018-33691-6

Cited by 26 publications

(17 citation statements)

References 72 publications

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“…According to recent ndings, Janthinobacterium lividum (β-Proteobacteria) produce antimicrobial activity against multidrug resistant bacteria of clinical and environmental origin, such as Enterococci and Enterobacteriaceae [61]. Its presence in the gastrointestinal bacterial communities of S. salar, may have probiotic activity.…”

Section: Discussionmentioning

confidence: 99%

Early Life Bacterial Succession Under Different Diet Regime Atlantic Salmon (Salmo salar L.)

Nikouli

Kormas

Yang

et al. 2020

Preprint

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Backgound: The present study investigated the effect of different lipid source in the feed on the colonization and the bacterial succession in early life stages (fertilized eggs until 93 days post first feeding) of S. salar. The two diets used in this study, FD (fish oil based diet) and VD (vegetable oil based diet), were formulated to cover the fish nutritional requirements and except the lipid source the components were identical between them. Hindgut samples collected at 0, 35, 65 and 93 days post first feeding (dpff). Moreover, fertilized eggs, yolk sac larvae, rearing water and feed were also sampled in order to assess a possible contribution of their microbiota to the colonization of the gut. To analyze the composition of the bacterial communities, the Illumina MiSeq platform was used.Results: S. salar growth variables (mean wet weight and total length) did not differ significantly during the experiment (p> 0.05) across replicate tanks and between dietary treatments. The analysis of the 16S rDNA sequencing data revealed a total of 4548 unique OTUs, affiliated in 21 bacterial phyla. Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes were the dominant bacterial phyla. 13 OTUs were shared among all S. salar samples independent of life stage and diet treatment. Similarity percentages analysis (SIMPER) based on Bray–Curtis distance, showed that the average dissimilarity among the groups of the same life stages was 76.0%, whereas the average dissimilarity within groups of the same dietary treatment was 78.5% (FD) and 83.6% (VD).Conclusion: Feeding on either fish oil or vegetable oil-based diets, did not result in significant differences in the intestinal microbiota. The composition of gut microbiota did not differ significantly between the two dietary treatments, but changed with age, and each stage was characterized by different dominant bacteria. These OTUs are related to species that provide different functions and have been isolated from a variety of environments. Finally, this study revealed the occurrence of a core microbiota independent of the studied life stages and diet during the early life stages of Atlantic salmon.

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Section: Discussionmentioning

confidence: 99%

Early Life Bacterial Succession Under Different Diet Regime Atlantic Salmon (Salmo salar L.)

Nikouli

Kormas

Yang

et al. 2020

Preprint

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“…At D35F and D65F, the dominant OTUs (OTU0017 and OTU0070, classi ed as Pseudomonas viridi ava and Janthinobacterium agaricidamnosum, respectively), are described as plant [55][56][57][58] and mushroom pathogens [59][60]. According to recent ndings, Janthinobacterium lividum (β-Proteobacteria) produce antimicrobial activity against multidrug resistant bacteria of clinical and environmental origin, such as Enterococci and Enterobacteriaceae [61]. Its presence in the gastrointestinal bacterial communities of S. salar, may have probiotic activity.…”

Section: Discussionmentioning

confidence: 99%

Early life bacterial succession under different diet regime Atlantic salmon (Salmo salar L.)

Nikouli

Kormas

Jin

et al. 2020

Preprint

View full text Add to dashboard Cite

Backgound: The present study investigated the effect of different lipid source in the feed on the colonization and the bacterial succession in early life stages (fertilized eggs until 93 days post first feeding) of S. salar. The two diets used in this study, FD (fish oil based diet) and VD (vegetable oil based diet), were formulated to cover the fish nutritional requirements and except the lipid source the components were identical between them.Hindgut samples collected at 0, 35, 65 and 93 days post first feeding (dpff). Moreover, fertilized eggs, yolk sac larvae, rearing water and feed were also sampled in order to assess a possible contribution of their microbiota to the colonization of the gut. To analyze the composition of the bacterial communities, the Illumina MiSeq platform was used. Results: S. salar growth variables (mean wet weight and total length) did not differ significantly during the experiment (p> 0.05) across replicate tanks and between dietary treatments. The analysis of the 16S rDNA sequencing data revealed a total of 4548 unique OTUs, affiliated in 21 bacterial phyla. Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes were the dominant bacterial phyla. 13 OTUs were shared among all S. salar samples independent of life stage and diet treatment. Similarity percentages analysis (SIMPER) based on Bray–Curtis distance, showed that the average dissimilarity among the groups of the same life stages was 76.0%, whereas the average dissimilarity within groups of the same dietary treatment was 78.5% (FD) and 83.6% (VD). Conclusion: Feeding on either fish oil or vegetable oil-based diets, did not result in significant differences in the intestinal microbiota. The composition of gut microbiota did not differ significantly between the two dietary treatments, but changed with age, and each stage was characterized by different dominant bacteria. These OTUs are related to species that provide different functions and have been isolated from a variety of environments. Finally, this study revealed the occurrence of a core microbiota independent of the studied life stages and diet during the early life stages of Atlantic salmon.

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“…Both psychrophilic and psychrotrophic isolates have been described within the genus Janthinobacterium (Kumar et al 2018;Shivaji et al 1991). Shivaji et al (1991) described eight bacteria, members of genus Janthinobacterium, isolated from soil samples collected in the islands of Scotia Ridge and the Antarctic Peninsulas as psychrotrophs that could grow in the temperature range of 4-28 °C but not at 30 °C or above (Shivaji et al 1991;Kumar et al 2018;Baricz et al 2018). They all exhibited optimum growth at 15 °C.…”

Section: Discussionmentioning

confidence: 99%

Psychrotrophs of the genus Janthinobacterium with potential to weather potassium aluminosilicate mineral

Rajawat

Singh

et al. 2019

3 Biotech

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In the present investigation, five strains of Janthinobacterium obtained from Rohtang Pass, Himachal Pradesh, India along with one strain of Bacillus decolorationis (IARI-SL-13) were screened qualitatively and quantitatively for their ability to solubilize K at different temperatures ranging from 5 to 30 °C. All the selected strains do not produce violet colonies, instead produced pink or red coloured colonies. In a plate assay, among all the strains tested, Janthinobacterium sp. IARI-R-81 was most efficient in solubilization of K at lower temperatures of 5 and 10 °C and was closely followed by Janthinobacterium lividum (IARI-R-71). Janthinobacterium sp. IARI-R-70 did not produce any detectable halo zones at all temperatures except 10 and 25 °C. Quantitative analysis revealed that all the selected pigment-producing strains could solubilize potassium-bearing mineral at low temperature (5 °C). J. lividum IARI-R-50 strain was most efficient in solubilizing K (29.87 ± 1.22 µg K/mL) from its mineral at 5 °C. This strain was typical as it solubilized almost the same amount of K both at 5 and 30 °C indicating its capability to adapt to different temperatures. All other strains showed a significantly higher concentration of solubilized K at 30 °C as compared to other temperatures tested. The non-pigmented B. decolorationis showed solubilization only at 25 and 30 °C and the concentration of K solubilized at 30 °C was significantly higher than at 25 °C. There was no correlation between pigment production and solubilization of potassium. This is the first report depicting solubilization trait of members of genus Janthinobacterium and confirms its evolutionary relatedness to Collimonads.

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Investigating the potential use of an Antarctic variant of Janthinobacterium lividum for tackling antimicrobial resistance in a One Health approach

Cited by 26 publications

References 72 publications

Early Life Bacterial Succession Under Different Diet Regime Atlantic Salmon (Salmo salar L.)

Early Life Bacterial Succession Under Different Diet Regime Atlantic Salmon (Salmo salar L.)

Early life bacterial succession under different diet regime Atlantic salmon (Salmo salar L.)

Psychrotrophs of the genus Janthinobacterium with potential to weather potassium aluminosilicate mineral

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