Effects of Sea Water Concentration and Temperature on the Survival of Legionella pneumophila Serogroup 1

作者: Susan Bennett , Richard Bentham

DOI: 10.1128/9781555815660.CH99

关键词: Context (language use)BacteriaSeawaterBiofilmLegionellaBiologyMicroorganismLegionella pneumophila Serogroup 1Agar plateMicrobiology

摘要: Legionellae are a predominantly aquatic family of bacteria commonly associated with water systems in the built environment. There substantially fewer reports presence and survival Legionella marine Researchers have investigated pneumophila serogroup (sg) 3 saline solutions seawater laboratory microcosms. The results these investigations showed that both increasing salinity temperature reduced organisms. limitations were heat sterilization would two major effects: (i) chemical alteration nature (ii) removal other microflora. grow conjunction microorganisms, this has been clearly demonstrated nonsterile tap cultures. cultured by direct inoculation 0.1 ml sample onto GVPC agar plates followed incubation at 35°C for 7 days. Representative colony morphologies enumerated presumptively confirmed as species subculture blood buffered charcoal yeast extract. L. decreased salinity. These suggested organism was not capable multiplication seawater. protective role amoebae biofilm cannot be disregarded context. Terrestrial runoff transient is plausible explanation previous relatively high concentrations coastal waters.

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