Plasmid composition in Aeromonas salmonicida subsp. salmonicida 01-B526 unravels unsuspected type three secretion system loss patterns.

Background: Aeromonas salmonicida subsp. salmonicida is a ubiquitous psychrophilic waterborne bacterium and a fish pathogen. The numerous mobile elements, especially insertion sequences (IS), in its genome promote rearrangements that impact its phenotype.

The mosaic architecture of subsp. pAsa4 plasmid and its consequences on antibiotic resistance.

subsp. , the causative agent of furunculosis in salmonids, is an issue especially because many isolates of this bacterium display antibiotic resistances, which limit treatments against the disease. Recent results suggested the possible existence of alternative forms of pAsa4, a large plasmid found in subsp.

Draft genome sequences of two Aeromonas salmonicida subsp. salmonicida isolates harboring plasmids conferring antibiotic resistance.

The bacterium Aeromonas salmonicida is the etiological agent of furunculosis, a widespread fish disease causing important economic losses to the fish farming industry. Antibiotic treatments in fish farms may be challenging given the existence of multidrug-resistant isolates of this bacterium. Here, we report the draft genome sequences of the 2004-05MF26 and 2009-144K3 isolates, which harbor plasmids conferring antibiotic resistance.

Variants of a genomic island in Aeromonas salmonicida subsp. salmonicida link isolates with their geographical origins.

Aeromonas salmonicida subsp. salmonicida is a fish pathogen. Analysis of its genomic characteristics is required to determine the worldwide distribution of the various populations of this bacterium.

Detection of variants of the pRAS3, pAB5S9, and pSN254 plasmids in Aeromonas salmonicida subsp. salmonicida: multidrug resistance, interspecies exchanges, and plasmid reshaping.

The ubiquitous water-borne Gram-negative bacterium Aeromonas salmonicida subsp. salmonicida is the causative agent of furunculosis, a worldwide disease in fish farms. Plasmids carrying antibiotic resistance genes have already been described for this bacterium.

Optimization of a plasmid electroporation protocol for Aeromonas salmonicida subsp. salmonicida.

Aeromonas salmonicida subsp. salmonicida is a major fish pathogen. Molecular tools are required to study the virulence and genomic stability of this bacterium.

Insertion sequence (IS ) is involved in the genomic plasticity of .

The genome of the fish pathogen subsp harbors a large number of insertion sequences (ISs), many of which are located on plasmids. In the present study, we analyzed the small plasmid profile of strains to identify evidences of plasmid alterations. Ten out of 78 strains analyzed displayed an unconventional plasmid profile.

Virulence, genomic features, and plasticity of Aeromonas salmonicida subsp. salmonicida, the causative agent of fish furunculosis.

The bacterium Aeromonas salmonicida subsp. salmonicida is the causative agent of furunculosis, a systemic disease of fish in the salmonid family. Furunculosis is a ubiquitous disease that affects aquaculture operations worldwide and is characterized by high mortality and morbidity.

Aeromonas salmonicida Ati2 is an effector protein of the type three secretion system.

The bacterium Aeromonas salmonicida, a fish pathogen, uses the type three secretion system (TTSS) to inject effector proteins into host cells to promote the infection. The study of the genome of A. salmonicida has revealed the existence of Ati2, a potential TTSS effector protein.

IS-mediated loss of virulence by Aeromonas salmonicida: A tangible piece of an evolutionary puzzle.

Insertion sequences (IS) are abundant in the bacterial fish pathogen genome. IS are involved in rearrangement events that lead to the loss of virulence. In previous work, we studied a plasmid rearrangement that causes the deletion of the type three secretion system in , resulting in a loss of virulence.

An insertion sequence-dependent plasmid rearrangement in Aeromonas salmonicida causes the loss of the type three secretion system.

Aeromonas salmonicida, a bacterial fish pathogen, possesses a functional Type Three Secretion System (TTSS), which is essential for its virulence. The genes for this system are mainly located in a single region of the large pAsa5 plasmid. Bacteria lose the TTSS region from this plasmid through rearrangements when grown in stressful growth conditions.

Draft genome sequence of the virulent strain 01-B526 of the fish pathogen Aeromonas salmonicida.

Aeromonas salmonicida is an important fish pathogen, mainly of salmonids. This bacterium causes a disease named furunculosis, which is particularly detrimental for the aquaculture industry. Here, we present the draft genome sequence of A.