DOI: 10.1128/JB.187.1.400-403.2005
ABSTRACT
Nicotinic acid is required by most isolates of Salmonella enterica (serovar Dublin), a pathogen of cattle. A single nadA missense mutation causes the nutritional requirement of all serovar Dublin isolates tested. Models for persistence of this allele are tested and discussed.
- Copyright © 2005 American Society for Microbiology