Results 141 to 150 of about 3,119 (183)

The Biology and Molecular Detection of Piscirickettsia Salmonis

2002
Piscirickettsia salmonis is an emerging obligate intracellular bacterial pathogen of salmonids (Fryer and Mauel 1997). This Gram-negative pleiomorphic coccoid bacterium replicates within membrane-bound cytoplasmic vacuoles in the cells of infected fish.
Marcia L. House, John L. Fryer
openaire   +1 more source

Subinhibitory concentrations of florfenicol increase the biofilm formation of Piscirickettsia salmonis

Journal of Fish Diseases, 2023
AbstractPublic health is facing a new challenge due to the increased bacterial resistance to most of the conventional antibacterial agents. Inadequate use of antibiotics in the Chilean aquaculture industry leads to the generation of multidrug resistance bacteria.
Cristian Oliver, Constanza Céspedes, Natacha Santibañez, Pamela Ruiz, Alex Romero   +4 more
openaire   +2 more sources

Chemical structure of the carbohydrate backbone of the lipopolysaccharide from Piscirickettsia salmonis

Carbohydrate Research, 2013
Elucidation of the carbohydrate backbone structure of the lipopolysaccharide (LPS) from Piscirickettsia salmonis, the etiological agent of the salmonid rickettsial septicemia, is described. Structural information was established by a combination of monosaccharide and methylation analyses of LPS, and by NMR and mass spectrometries of oligosaccharides ...
Vinogradov, E., Frimmelova, M., Toman, R.   +2 more
openaire   +3 more sources

Piscirickettsia salmonis, a major pathogen of salmonid fish in Chile

Fisheries Research, 1993
Abstract Piscirickettsiosis has resulted in extensive losses among salmonid fishes cultured in southern Chile. It occurs at many seawater sites near Puerto Montt, where recurring epizootics have frequently resulted in mortality approaching 90% among the coho salmon (Oncorhynchus kisutch) cultured there.
C.N. Lannan, J.L. Fryer
openaire   +1 more source

Characterization of a novel and genetically different small infective variant of Piscirickettsia salmonis

Microbial Pathogenesis, 2008
We report a novel genetically different small infective variant of the fish pathogen Piscirickettsia salmonis (sP.s). sP.s variants were recovered both from ageing post-infected CHSE-214 culture cells as well as from naturally infected fish. The ITS region of sP.s variants, although sharing a common core sequence, is different from the ITS of the ...
M, Verónica Rojas, Jorge, Olivares P, Rodrigo, del Río, Sergio H, Marshall   +3 more
openaire   +2 more sources

Piscirickettsia salmonis: a Gram‐negative intracellular bacterial pathogen of fish

Journal of Fish Diseases, 2003
Piscirickettsia salmonis is the first Gram-negative, intracellular bacterial pathogen isolated from fish and is a significant cause of mortality in salmonid fish. Recent reports of P. salmonis or P. salmonis-like organisms from new fish hosts and geographic regions have increased the interest in the bacterium.
J L, Fryer, R P, Hedrick
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Survival and replication of Piscirickettsia salmonis in rainbow trout head kidney macrophages

Fish & Shellfish Immunology, 2008
Piscirickettsia salmonis is pathogenic for a variety of cultured marine fish species worldwide. The organism has been observed within host macrophages in natural disease outbreaks among coho salmon and European sea bass. In vitro studies, incorporating transmission electron microscopy (TEM) and ferritin loading of lysosomes, have confirmed that P ...
Una M, McCarthy, James E, Bron, Linton, Brown, Fazel, Pourahmad, Ian R, Bricknell, Kim D, Thompson, Alexandra, Adams, Anthony E, Ellis   +7 more
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A vaccine against the salmonid pathogen Piscirickettsia salmonis based on recombinant proteins

Vaccine, 2006
We report here the protective effect against piscirickettsiosis elicited in fish by a mixture of recombinant proteins. A comparative genomics strategy was used on a genomic library of Piscirickettsia salmonis in order to select optimal candidates for a recombinant subunit vaccine to protect fish from rickettsial septicaemia (SRS).
Wilhelm, Vivian, Miquel, Alvaro, Burzio, Luis O., Rosemblatt Silber, Mario César, Engel, Esteban, Valenzuela, Sebastían, Parada, Gustavo, Valenzuela, Pablo D.T.   +7 more
openaire   +3 more sources

Genome-scale metabolic reconstruction for the insidious bacterium in aquaculture Piscirickettsia salmonis

Bioresource Technology, 2017
Piscirickettsia salmonis is a fish bacterium that causes the disease piscirickettsiosis in salmonids. This pathology is partially controlled by vaccines. The lack of knowledge has hindered its culture on laboratory and industrial scale. The study describes the metabolic phenotype of P. salmonis in culture.
Pablo, Fuentealba, Camila, Aros, Yesenia, Latorre, Irene, Martínez, Sergio, Marshall, Pau, Ferrer, Joan, Albiol, Claudia, Altamirano   +7 more
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A new liquid medium for the pathogen Piscirickettsia salmonis

2012
Piscirickettsia salmonis es el agente causal del Síndrome Rickettsial Salmonídeo (SRS), el cual se describió por primera vez en cultivos de salmón Coho en las costas del Sur de Chile en el año 1989 y desde entonces se ha reportado en distintos lugares alrededor del mundo.
Vera, T., Isla, A., Cuevas, A., Figueroa, J.   +3 more
openaire   +1 more source