Presence and time resuscitation of Viable But Nonculturable (VBNC) Legionella species in a hospital water system
نویسندگان
چکیده
منابع مشابه
Resuscitation of viable but nonculturable Legionella pneumophila Philadelphia JR32 by Acanthamoeba castellanii.
Legionella pneumophila is an aquatic bacterium and is responsible for Legionnaires' disease in humans. Free-living amoebae are parasitized by legionellae and provide the intracellular environment required for the replication of this bacterium. In low-nutrient environments, however, L. pneumophila is able to enter a non-replicative viable but nonculturable (VBNC) state. In this study, L. pneumop...
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Salmonella typhi is a pathogen that causes the human disease of typhoid fever. The aim of this study was to investigate the viable but nonculturable (VBNC) state of S. typhi. Some samples were stimulated at 4°C or -20°C, while others were induced by different concentrations of CuSO4. Total cell counts remained constant throughout several days by acridine orange direct counting; however, plate c...
متن کاملThe viable but nonculturable state and cellular resuscitation
Aquatic microbial ecologists have long recognized that portions of bacterial populations seem to disappear from natural water bodies during certain times of the year, only to reappear at other times. In the case of V. vulnificus, numerous studies have documented the difficulty researchers experience in culturing this bacterium during cold months, presumably due to “die-off” of the population. T...
متن کاملResuscitation of Vibrio vulnificus from the Viable but Nonculturable State.
Like many other gram-negative bacteria, the human pathogen Vibrio vulnificus is induced into a viable but nonculturable (VBNC) state by incubation at low temperatures. The ability of any bacterium to resuscitate from this dormant state would appear to be essential if the VBNC state is truly a survival strategy. The question as to whether the culturable cells which appear following removal of th...
متن کاملCharacterization of the Viable but Nonculturable (VBNC) State in Saccharomyces cerevisiae
The Viable But Non Culturable (VBNC) state has been thoroughly studied in bacteria. In contrast, it has received much less attention in other microorganisms. However, it has been suggested that various yeast species occurring in wine may enter in VBNC following sulfite stress.In order to provide conclusive evidences for the existence of a VBNC state in yeast, the ability of Saccharomyces cerevi...
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ژورنال
عنوان ژورنال: European Journal of Public Health
سال: 2013
ISSN: 1101-1262,1464-360X
DOI: 10.1093/eurpub/ckt123.193