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Microb Pathog. 2002 May;32(5):249-54.

Identification of a general secretory pathway in a human isolate of Burkholderia vietnamiensis (formerly B. cepacia complex genomovar V) that is required for the secretion of hemolysin and phospholipase C activities.

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Department of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada.


Members of the Burkholderia cepacia complex can secrete proteases, lipases, and hemolysins. We report in this study the identification of a general secretory pathway present in a B. vietnamiensis (formerly genomovar V) clinical isolate, which is required for the efficient secretion of phospholipase C and hemolysin activities. Southern blot hybridization experiments revealed that this general secretion pathway is highly conserved among the different genomovars of the B. cepacia complex and is homologous to a similar system described in B. pseudomallei. We also show that this pathway appears not to be necessary for intracellular survival of B. vietnamiensis within Acanthamoeba polyphaga.

[Indexed for MEDLINE]

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