PMID: 11911675Mar 26, 2002Paper

Survival of Flavobacterium psychrophilum in rainbow trout (Oncorhynchus mykiss) serum in vitro

Fish & Shellfish Immunology
Tom Wiklund, I Dalsgaard

Abstract

Virulent and non-virulent strains of Flavobacterium psychrophilum of different serotypes were examined for survival and growth in non-immune and immune rainbow trout serum, in vitro. A majority of the examined strains consumed complement of non-immune serum, but the complement cascade was not able to cause an immediate (after 3 h incubation) notable reduction in viability of the inoculated cells. After 24 h incubation a more pronounced reduction in the number of viable bacteria was observed in untreated serum as well as in serum heated at 45 degrees C. In serum heated at 56 degrees C this reduction in cell number was not observed, but an increase in cell number did not occur either. The serum survival of one of the examined strains was different from the others in showing cell multiplication after 24 h incubation in normal as well as heat-treated (45 and 56 degrees C) serum. In immune serum no immediate reduction in viability of inoculated cells, of all tested strains, was observed. The number of viable cells showed a slow decrease or remained almost unchanged for up to 72 h post-inoculation in untreated serum, at 5 degrees C as well as 15 degrees C. In heat-treated serum (45 degrees C) the number of viable cells decreased slow...Continue Reading

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Citations

Feb 18, 2010·Infection and Immunity·Esteban SotoJohn P Hawke
Apr 11, 2007·Fish & Shellfish Immunology·Benjamin R LaFrentzKenneth D Cain
Aug 9, 2005·Journal of Fish Diseases·J D MøllerI Dalsgaard
Dec 5, 2003·Journal of Fish Diseases·A NematollahiF Haesebrouck
Mar 9, 2011·Journal of Fish Diseases·T Nagai, T Nakai
Jul 25, 2014·Microbial Biotechnology·Esther GómezJosé A Guijarro
Jun 14, 2005·Fish & Shellfish Immunology·H BoshraJ O Sunyer
Feb 22, 2012·Veterinary Immunology and Immunopathology·Jason P Evenhuis, Beth M Cleveland

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