Actinobacillus pleuropneumoniae does not require urease activity to produce acute swine pleuropneumonia.

Abstract:

:The role in virulence of Actinobacillus pleuropneumoniae urease activity was investigated. A urease-negative mutant was isolated following transposon mutagenesis with a mini-Tn10 derivative. Both the parent strain and the urease-negative mutant exhibited identical LD50 values in a murine infection model. Pig challenge confirmed that the urease-negative mutant was fully virulent, since experimental inoculation with 5 x 10(7) colony forming units resulted in an acute disease indistinguishable from that produced by the wild-type strain at the same dose. Our results demonstrate that urease activity is not required for the development of acute pleuropneumonia.

journal_name

FEMS Microbiol Lett

authors

Tascón Cabrero RI,Vázquez-Boland JA,Gutiérrez CB,Rodríguez-Barbosa JI,Rodríguez-Ferri EF

doi

10.1111/j.1574-6968.1997.tb10266.x

subject

Has Abstract

pub_date

1997-03-01 00:00:00

pages

53-7

issue

1

eissn

0378-1097

issn

1574-6968

pii

S0378-1097(97)00012-8

journal_volume

148

pub_type

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