Effect of low temperature on starvation-survival of the eel pathogen Vibrio vulnificus biotype 2.

Applied and Environmental Microbiology
E G BioscaJ D Oliver

Abstract

At present, no reports exist on the isolation of the eel pathogen Vibrio vulnificus biotype 2 from water samples. Nevertheless, it has recently been demonstrated that this biotype can use water as a route of infection. In the present study, the survival of this pathogen in artificial seawater (ASW) microcosms at different temperatures (25 and 5 degrees C) was investigated during a 50-day period, with biotype 1 as a control, V. vulnificus biotype 2 was able to survive in the culturable state in ASW at 25 degrees C in the free-living form, at least for 50 days, entering into the nonculturable state when exposed to low temperature. In this state, this microorganism survived with reduced rates of activity, showing marked changes in size and morphology. The rate at which cells became nonculturable was dependent on their physiological age. The capsule seems not to be necessary for the survival of biotype 2 in aquatic environments as a free-living organism. Culturability remained the highest on modified salt water yeast extract agar, which is closer in salt and nutrient composition to ASW than heart infusion agar. Biotype 2 cells recovered culturability on solid media after an increase of incubation temperature from 5 to 25 degrees C....Continue Reading

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Citations

Dec 1, 2001·Journal of Food Protection·K T Rajkowski, E W Rice
Sep 22, 2007·Foodborne Pathogens and Disease·Narjol González-EscalonaAngelo DePaola
Dec 9, 2010·International Journal of Environmental Research and Public Health·Etinosa O Igbinosa, Anthony I Okoh
Jun 28, 2016·Environmental Microbiology·David PajueloCarmen Amaro
Jun 16, 2016·Diseases of Aquatic Organisms·Pamela RuizRuben Avendaño-Herrera
Aug 2, 2007·Physiological Genomics·Svetlana KalujnaiaGordon Cramb
Jan 12, 2010·FEMS Microbiology Reviews·James D Oliver
Oct 6, 2000·Annual Review of Microbiology·U SzewzykK H Schleifer
Oct 28, 2010·FEMS Microbiology Ecology·Samuel Duodu, Duncan Colquhoun
Jun 12, 2014·Frontiers in Microbiology·Laam LiSebastien P Faucher
Jan 22, 1998·Applied and Environmental Microbiology·L HøiA Dalsgaard
Jul 1, 1997·Applied and Environmental Microbiology·F JouxM Troussellier
Jul 1, 1996·Applied and Environmental Microbiology·E G Biosca, C Amaro
Apr 27, 2005·Tuberculosis·Rebecca Joy ArchuletaTodd P Primm

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