Johnson A D, Spero L
Appl Environ Microbiol. 1981 Jun;41(6):1479-81. doi: 10.1128/aem.41.6.1479-1481.1981.
Two vaccine strains of Bacillus anthracis were monitored in a 10-liter fermentor to compare growth patterns and toxin production. Under identical conditions, the Sterne strain produced all three components of anthrax toxin, whereas strain V770 produced only the protective antigen.