Complete sequences of two sp. strains and one strain isolated from the environment on STAA medium highlight biotechnological potential.

Streptomycin thallous acetate actidione medium is typically used to isolate bacteria from food. Using this medium, three bacterial strains were isolated from the environment. Genomic sequences demonstrated that these bacteria are of the genera and and are of biotechnological interest.

Host Dependent-Transposon for a Plasmid Found in subsp. That Bears a Gene for Chloramphenicol Resistance.

Plasmids that carry antibiotic resistance genes occur frequently in subsp. , an aquatic pathogen with severe consequences in salmonid farming. Here, we describe a 67 kb plasmid found in the subsp.

isolates from Canada demonstrate wide distribution and clustering among mesophilic strains.

All the 36 known species to date of the genus are mesophilic except the species , which includes both psychrophilic and mesophilic subspecies. For 20 years, more and more mesophilic strains have been discovered. Only subsp.

Expansion of the pRAS3 Plasmid Family in subsp. and Growing Evidence of Interspecies Connections for These Plasmids.

subsp. is a pathogenic bacterium responsible for furunculosis in salmonids. Following an outbreak of furunculosis, the infection can be treated with antibiotics, but it is common to observe ineffective treatment due to antibiotic resistance.

Structural insights into the putative bacterial acetylcholinesterase ChoE and its substrate inhibition mechanism.

Mammalian acetylcholinesterase (AChE) is well-studied, being important in both cholinergic brain synapses and the peripheral nervous systems and also a key drug target for many diseases. In contrast, little is known about the structures and molecular mechanism of prokaryotic acetylcholinesterases. We report here the structural and biochemical characterization of ChoE, a putative bacterial acetylcholinesterase from Analysis of WT and mutant strains indicated that ChoE is indispensable for growth with acetylcholine as the sole carbon and nitrogen source.

The Role for the Small Cryptic Plasmids As Moldable Vectors for Genetic Innovation in subsp. .

In subsp. , a bacterium that causes fish disease, there are two types of small plasmids (<15 kbp): plasmids without known function, called cryptic plasmids, and plasmids that bear beneficial genes for the bacterium. Four among them are frequently detected in strains of subsp.

Diversity of antibiotic-resistance genes in Canadian isolates of Aeromonas salmonicida subsp. salmonicida: dominance of pSN254b and discovery of pAsa8.

The bacterium Aeromonas salmonicida subsp. salmonicida is a common pathogen in fish farms worldwide. Since the antibiotic resistance of this bacterial species is on the increase, it is important to have a broader view on this issue.

Antibiotic resistance due to an unusual ColE1-type replicon plasmid in Aeromonas salmonicida.

Aeromonas salmonicida subsp. salmonicida is a fish pathogen known to have a rich plasmidome. In the present study, we discovered an isolate of this bacterium bearing an additional unidentified small plasmid.

Diversity and Homogeneity among Small Plasmids of Aeromonas salmonicida subsp. salmonicida Linked with Geographical Origin.

Furunculosis, which is caused by Aeromonas salmonicida subsp. salmonicida, is a major salmonid disease in fish farms worldwide. Several plasmids found in this bacterium confer phenotypes such drug resistance and virulence.

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.

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.