Negative correlation between individual-insect-level virulence and colony-level virulence of Paenibacillus larvae, the etiological agent of American foulbrood of honeybees

Appl Environ Microbiol. 2009 May;75(10):3344-7. doi: 10.1128/AEM.02839-08. Epub 2009 Mar 20.

Abstract

Paenibacillus larvae is the etiological agent of American foulbrood (AFB) in honeybees. Recently, different genotypes of P. larvae (ERIC I to ERIC IV) were defined, and it was shown that these genotypes differ inter alia in their virulence on the larval level. On the colony level, bees mitigate AFB through the hygienic behavior of nurse bees. Therefore, we investigated how the hygienic behavior shapes P. larvae virulence on the colony level. Our results indicate that P. larvae virulence on the larval level and that on the colony level are negatively correlated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bees / microbiology*
  • Gram-Positive Bacteria / growth & development
  • Gram-Positive Bacteria / pathogenicity*
  • Gram-Positive Bacterial Infections / microbiology
  • Gram-Positive Bacterial Infections / veterinary*
  • Larva / microbiology
  • Virulence