Literature DB >> 9435080

Production of respirable vesicles containing live Legionella pneumophila cells by two Acanthamoeba spp.

S G Berk1, R S Ting, G W Turner, R J Ashburn.   

Abstract

Two Acanthamoeba species, fed at three temperatures, expelled vesicles containing living Legionella pneumophila cells. Vesicles ranged from 2.1 to 6.4 microns in diameter and theoretically could contain several hundred bacteria. Viable L. pneumophila cells were observed within vesicles which had been exposed to two cooling tower biocides for 24 h. Clusters of bacteria in vesicles were not dispersed by freeze-thawing and sonication. Such vesicles may be agents for the transmission of legionellosis associated with cooling towers, and the risk may be underestimated by plate count methods.

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Year:  1998        PMID： 9435080      PMCID： PMC124706     

Source DB:  PubMed          Journal:  Appl Environ Microbiol        ISSN： 0099-2240            Impact factor:   4.792


  10 in total

1.  Factors stimulating propagation of legionellae in cooling tower water.

Authors:  H Yamamoto; M Sugiura; S Kusunoki; T Ezaki; M Ikedo; E Yabuuchi
Journal:  Appl Environ Microbiol       Date:  1992-04       Impact factor: 4.792

2.  Legionnaires' disease: the infective dose paradox.

Authors:  S J O'Brien; R S Bhopal
Journal:  Lancet       Date:  1993-07-03       Impact factor: 79.321

Review 3.  Trojan horses of the microbial world: protozoa and the survival of bacterial pathogens in the environment.

Authors:  J Barker; M R Brown
Journal:  Microbiology       Date:  1994-06       Impact factor: 2.777

4.  Preliminary report on the pathogenicity of Legionella pneumophila for freshwater and soil amoebae.

Authors:  T J Rowbotham
Journal:  J Clin Pathol       Date:  1980-12       Impact factor: 3.411

5.  Proliferation of Legionella pneumophila as an intracellular parasite of the ciliated protozoan Tetrahymena pyriformis.

Authors:  B S Fields; E B Shotts; J C Feeley; G W Gorman; W T Martin
Journal:  Appl Environ Microbiol       Date:  1984-03       Impact factor: 4.792

6.  Growth of Legionella pneumophila in Acanthamoeba castellanii enhances invasion.

Authors:  J D Cirillo; S Falkow; L S Tompkins
Journal:  Infect Immun       Date:  1994-08       Impact factor: 3.441

7.  Current views on the relationships between amoebae, legionellae and man.

Authors:  T J Rowbotham
Journal:  Isr J Med Sci       Date:  1986-09

8.  Adaptation of amoebae to cooling tower biocides.

Authors:  S Srikanth; S G Berk
Journal:  Microb Ecol       Date:  1994-05       Impact factor: 4.552

9.  Stimulatory effect of cooling tower biocides on amoebae.

Authors:  S Srikanth; S G Berk
Journal:  Appl Environ Microbiol       Date:  1993-10       Impact factor: 4.792

10.  Interaction of Legionella pneumophila with Acanthamoeba castellanii: uptake by coiling phagocytosis and inhibition of phagosome-lysosome fusion.

Authors:  J A Bozue; W Johnson
Journal:  Infect Immun       Date:  1996-02       Impact factor: 3.441
  10 in total
  65 in total

1.  Phylogenetic diversity among geographically dispersed Chlamydiales endosymbionts recovered from clinical and environmental isolates of Acanthamoeba spp.

Authors:  T R Fritsche; M Horn; M Wagner; R P Herwig; K H Schleifer; R K Gautom
Journal:  Appl Environ Microbiol       Date:  2000-06       Impact factor: 4.792

2.  Legionella pneumophila utilizes the same genes to multiply within Acanthamoeba castellanii and human macrophages.

Authors:  G Segal; H A Shuman
Journal:  Infect Immun       Date:  1999-05       Impact factor: 3.441

3.  Ultrastructural analysis of differentiation in Legionella pneumophila.

Authors:  Gary Faulkner; Rafael A Garduño
Journal:  J Bacteriol       Date:  2002-12       Impact factor: 3.490

4.  Molecular characterization of Legionella populations present within slow sand filters used for fungal plant pathogen suppression in horticultural crops.

Authors:  Leo A Calvo-Bado; J Alun W Morgan; Martin Sergeant; Tim R Pettitt; John M Whipps
Journal:  Appl Environ Microbiol       Date:  2003-01       Impact factor: 4.792

Review 5.  Microorganisms resistant to free-living amoebae.

Authors:  Gilbert Greub; Didier Raoult
Journal:  Clin Microbiol Rev       Date:  2004-04       Impact factor: 26.132

Review 6.  Molecular pathogenesis of infections caused by Legionella pneumophila.

Authors:  Hayley J Newton; Desmond K Y Ang; Ian R van Driel; Elizabeth L Hartland
Journal:  Clin Microbiol Rev       Date:  2010-04       Impact factor: 26.132

Review 7.  Amoebae as training grounds for intracellular bacterial pathogens.

Authors:  Maëlle Molmeret; Matthias Horn; Michael Wagner; Marina Santic; Yousef Abu Kwaik
Journal:  Appl Environ Microbiol       Date:  2005-01       Impact factor: 4.792

8.  Role of bacterial adhesion in the microbial ecology of biofilms in cooling tower systems.

Authors:  Yang Liu; Wei Zhang; Tadas Sileika; Richard Warta; Nicholas P Cianciotto; Aaron Packman
Journal:  Biofouling       Date:  2009       Impact factor: 3.209

9.  Enhanced survival of Salmonella enterica in vesicles released by a soilborne Tetrahymena species.

Authors:  M T Brandl; B M Rosenthal; A F Haxo; S G Berk
Journal:  Appl Environ Microbiol       Date:  2005-03       Impact factor: 4.792

Review 10.  Pathogenic free-living amoebae in Korea.

Authors:  Ho-Joon Shin; Kyung-il Im
Journal:  Korean J Parasitol       Date:  2004-09       Impact factor: 1.341
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