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Lactococcus garvieae

ABSTRACT: An emerging zoonotic agent isolated from fish, cattle, and humans

PROVIDER: PRJNA18709 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	DRR015831_1.fastq.gz	Fastqsanger.gz
	DRR015831_2.fastq.gz	Fastqsanger.gz
	DRR381127_subreads.fastq.gz	Fastqsanger.gz
	DRR428555_1.fastq.gz	Fastqsanger.gz

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Lactococcus garvieae Lg2

Project description:An emerging zoonotic agent isolated from fish, cattle, and humans

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Lactococcus garvieae ATCC 49156

Project description:An emerging zoonotic agent isolated from fish, cattle and humans

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Spleen and head kidney differential gene expression patterns in trout with clinical signs of lactococcosis caused by Lactococcus garvieae

Project description:Lactococcus garvieae is the etiological agent of lactococcosis, a hemorrhagic septicaemia that affects marine and freshwater fish, with special incidence and economic relevance in farmed rainbow trout and with potential zoonotic risks. To characterize the trout immune response at the transcriptomic level on those individuals with clinical signs of lactococcosis, we have performed a microarray analysis using a previously validated immune-focused gene design. The analysis of the transcriptome of spleen and kidney reveals a different pattern of transcription between both immune organs. A correlation between the histopathological examination and the expression patterns of gene sets characterizing immune cell populations was observed for the first time in the spleen. Up-regulation of gene sets key to NK cells, cytotoxic T cells, Th1 and Th2 lymphocytes and macrophages correlated with the inflammatory process and the existence of granulomes containing a high number of macrophages with internalized L. garvieae. On the other hand, cell wall peptidoglican seems to be an important antigen able to induce a complex network of pathways, cytokine production and responses in the host.

2019-05-14 | GSE101695 | GEO

Lactococcus garvieae

Project description:Whole Genome sequences of Human and Fish Isolates from Singapore

| PRJNA497768 | ENA

Transcriptome analysis of Lactococcus garvieae strain 8831 grown at 13ºC and 18ºC

Project description:Transcritome profiling of the fish pathogen Lactococcus garvieae strain 8831 in response to growth temperature

2016-11-21 | GSE40357 | GEO

Identification of Lactococcus garvieae by PCR.

Project description:Lactococcus garvieae junior synonym Enterococcus seriolicida) is an emerging zoonotic agent isolated from economically important fish (rainbow trout and yellowtail), from cattle, and from humans. Clindamycin susceptibility is the only phenotypic test which can differentiate L. garvieae from Lactococcus lactis, another emerging agent in humans. A PCR assay for the identification of L. garvieae was developed and resulted in an amplified fragment of 1,100 bp in size. The PCR assay was shown to be specific to L. garvieae. The PCR assay was positive for all the L. garvieae strains tested, which originated from three different continents (Asia, Australia, and Europe). The PCR assay was negative for the phenotypically similar L. lactis and for all the other fish pathogens tested, including Streptococcus iniae and Aeromonas salmonicida. The PCR assay was applied to plasma obtained from diseased animals and was found sensitive enough to detect bacteria from 1 microl of plasma. The PCR assay that was developed is the only practical test besides the clindamycin test which can specifically identify the zoonotic agent L. garvieae and which can differentiate it from L. lactis.

| S-EPMC104673 | biostudies-literature

Characterization of prophages of Lactococcus garvieae.

Project description:This report describes the morphological characterization and genome analysis of an induced prophage (PLg-TB25) from a dairy strain of Lactococcus garvieae. The phage belongs to the Siphoviridae family and its morphology is typical of other lactococcal phages. A general analysis of its genome did not reveal similarities with other lactococcal phage genomes, confirming its novelty. However, similarities were found between genes of its morphogenesis cluster and genes of Gram-positive bacteria, suggesting that this phage genome resulted from recombination events that took place in a heterogeneous microbial environment. An in silico search for other prophages in 16 L. garvieae genomes available in public databases, uncovered eight seemingly complete prophages in strains isolated from dairy and fish niches. Genome analyses of these prophages revealed three novel L. garvieae phages. The remaining prophages had homology to phages of Lactococcus lactis (P335 group) suggesting a close relationship between these lactococcal species. The similarity in GC content of L. garvieae prophages to the genomes of L. lactis phages further supports the hypothesis that these phages likely originated from the same ancestor.

| S-EPMC5431838 | biostudies-literature

Understanding Streptococcus suis serotype 2 infection in pigs through a transcriptional approach

Project description:Streptococcus suis serotype 2 is an important pathogen of pigs, and the disease it causes is characterized by meningitis, septicaemia and pneumonia with high mortality. The pathogen is also an emerging zoonotic agent and threatens humans that are exposed to pigs or their by-products. We investigated the response of PBMC (Peripheral Blood Mononuclear Cell), brain and lung tissues to infection with S. suis 2 strain SC19 by using the Affymetrix Porcine Genome Array.

2010-10-26 | GSE24889 | GEO

Genome sequences of Lactococcus garvieae TB25, isolated from Italian cheese, and Lactococcus garvieae LG9, isolated from Italian rainbow trout.

Project description:Lactococcus garvieae is a fish pathogen and an emerging zoonotic opportunistic pathogen as well as a component of natural microbiota in dairy products. Here, we present the first report of a genome sequence of L. garvieae TB25, isolated from a dairy source, and that of L. garvieae LG9, isolated from rainbow trout.

| S-EPMC3294776 | biostudies-literature

A virulent phage infecting Lactococcus garvieae, with homology to Lactococcus lactis phages.

Project description:A new virulent phage belonging to the Siphoviridae family and able to infect Lactococcus garvieae strains was isolated from compost soil. Phage GE1 has a prolate capsid (56 by 38 nm) and a long noncontractile tail (123 nm). It had a burst size of 139 and a latent period of 31 min. Its host range was limited to only two L. garvieae strains out of 73 tested. Phage GE1 has a double-stranded DNA genome of 24,847 bp containing 48 predicted open reading frames (ORFs). Putative functions could be assigned to only 14 ORFs, and significant matches in public databases were found for only 17 ORFs, indicating that GE1 is a novel phage and its genome contains several new viral genes and encodes several new viral proteins. Of these 17 ORFs, 16 were homologous to deduced proteins of virulent phages infecting the dairy bacterium Lactococcus lactis, including previously characterized prolate-headed phages. Comparative genome analysis confirmed the relatedness of L. garvieae phage GE1 to L. lactis phages c2 (22,172 bp) and Q54 (26,537 bp), although its genome organization was closer to that of phage c2. Phage GE1 did not infect any of the 58 L. lactis strains tested. This study suggests that phages infecting different lactococcal species may have a common ancestor.

| S-EPMC4644644 | biostudies-literature

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