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aeromonas piscicola sp. nov., isolated from diseased fish.four aeromonas strains (s1.2(t), eo-0505, tc1 and ti 1.1) isolated from moribund fish in spain showed a restriction fragment length polymorphism (rflp) pattern related to strains of aeromonas salmonicida and aeromonas bestiarum but their specific taxonomic position was unclear. multilocus sequence analysis (mlsa) of housekeeping genes rpod, gyrb, reca and dnaj confirmed the allocation of these isolates to an unknown genetic lineage within the genus aeromonas with a. salmonicida, a. bestiarum and ...200919570633
Bacterial skin flora variation and in vitro inhibitory activity against Saprolegnia parasitica in brown and rainbow trout.Variations in the number and diversity of bacteria from the skin of brown trout Salmo trutta L. and rainbow trout Oncorhynchus mykiss Walbaum were surveyed from different rivers and fish farms in northern Spain. In addition to determining bacterial populations in skin samples of healthy fish, bacterial populations were determined from skin lesions (of brown trout only) infected with Saprolegnia parasitica, the causal agent of saprolegniosis. Mean bacterial counts from skin lesions of brown trout ...201122013752
aeromonas piscicola ah-3 expresses an extracellular collagenase with cytotoxic properties.the aim of this study was to investigate the presence and the phenotypic expression of a gene coding for a putative collagenase. this gene (aha_0517) was identified in aeromonas hydrophila atcc 7966 genome and named colah. we constructed and characterized an aeromonas piscicola ah-3::colah knockout mutant. collagenolytic activity of the wild-type and mutant strains was determined, demonstrating that colah encodes for a collagenase. colah-collagen interaction was assayed by far-western blot, and ...201525443157
the improved pcr of the fsta (ferric siderophore receptor) gene differentiates the fish pathogen aeromonas salmonicida from other aeromonas species.the members of the genus aeromonas are autochthonous of aquatic ecosystems and several species have been associated to septicaemia, ulcerative and haemorrhagic diseases in fish, causing significant mortality in both wild and farmed, freshwater and marine fish species. the species aeromonas salmonicida is generally recognized as the most important fish pathogen responsible for epidemic outbreaks of furunculosis in salmonids, also being able to produce infections in other cultured fish such as tur ...201323890674
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