RESIN COLLECTION AND SOCIAL IMMUNITY IN HONEY BEES
- 1 November 2009
- Vol. 63 (11), 3016-3022
- https://doi.org/10.1111/j.1558-5646.2009.00772.x
Abstract
Diverse animals have evolved an ability to collect antimicrobial compounds from the environment as a means of reducing infection risk. Honey bees battle an extensive assemblage of pathogens with both individual and "social" defenses. We determined if the collection of resins, complex plant secretions with diverse antimicrobial properties, acts as a colony-level immune defense by honey bees. Exposure to extracts from two sources of honey bee propolis (a mixture of resins and wax) led to a significantly lowered expression of two honey bee immune-related genes (hymenoptaecin and AmEater in Brazilian and Minnesota propolis, respectively) and to lowered bacterial loads in the Minnesota (MN) propolis treated colonies. Differences in immune expression were also found across age groups (third-instar larvae, 1-day-old and 7-day-old adults) irrespective of resin treatment. The finding that resins within the nest decrease investment in immune function of 7-day-old bees may have implications for colony health and productivity. This is the first direct evidence that the honey bee nest environment affects immune-gene expression.Keywords
This publication has 44 references indexed in Scilit:
- Efficacy of natural propolis extract in the control of American FoulbroodVeterinary Microbiology, 2008
- Immune response impairs learning in free-flying bumble-beesBiology Letters, 2008
- Prophylaxis with resin in wood antsAnimal Behaviour, 2008
- In vitro study of the antimicrobial activity of Brazilian propolis against Paenibacillus larvaeJournal of Invertebrate Pathology, 2008
- The presence of conifer resin decreases the use of the immune system in wood antsEcological Entomology, 2008
- Wood ants use resin to protect themselves against pathogensProceedings. Biological sciences, 2007
- Use of Plant Resin by a Bee Assassin Bug, Apiomerus flaviventris (Hemiptera: Reduviidae)Annals of the Entomological Society of America, 2007
- Social reversal of immunosenescence in honey bee workersExperimental Gerontology, 2005
- Recent trends and important developments in propolis researchEvidence-Based Complementary and Alternative Medicine, 2005
- Evidence for collective medication in antsEcology Letters, 2002