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Temperature-dependent parasitic relationship between Legionella pneumophila and a free-living amoeba (Acanthamoeba castellanii).


ABSTRACT: We analyzed the effects of temperature on the interaction of Legionella pneumophila with Acanthamoeba castellanii. At <20 degrees C, overexpression of type 1 metacaspase, a stimulator of A. castellanii encystation, was associated with a reduced number of bacteria within amoeba. At low temperatures, A. castellanii seems to eliminate L. pneumophila by encystation and digestion.

SUBMITTER: Ohno A 

PROVIDER: S-EPMC2493147 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature

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Temperature-dependent parasitic relationship between Legionella pneumophila and a free-living amoeba (Acanthamoeba castellanii).

Ohno Akira A   Kato Naoyuki N   Sakamoto Ryota R   Kimura Soichiro S   Yamaguchi Keizo K  

Applied and environmental microbiology 20080523 14


We analyzed the effects of temperature on the interaction of Legionella pneumophila with Acanthamoeba castellanii. At <20 degrees C, overexpression of type 1 metacaspase, a stimulator of A. castellanii encystation, was associated with a reduced number of bacteria within amoeba. At low temperatures, A. castellanii seems to eliminate L. pneumophila by encystation and digestion. ...[more]

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