Affiliation:
1. Department of Veterinary Pathology, College of Veterinary Medicine, Oklahoma State University, Stillwater 74078, USA.
Abstract
A Pasteurella haemolytica mutant incapable of producing leukotoxin was created by allelic replacement. Concentrated culture supernatants from wild-type P. haemolytica, but not from the mutant, contained the 102-kDa leukotoxin protein and lysed bovine lymphoma cells and sheep erythrocytes. Wild-type P. haemolytica demonstrated the typical beta-hemolytic phenotype on sheep and rabbit blood agar, whereas the mutant did not.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Immunology,Microbiology,Parasitology
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