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Insects. 2012 Jun 27;3(3):601-15. doi: 10.3390/insects3030601.

How Varroa Parasitism Affects the Immunological and Nutritional Status of the Honey Bee, Apis mellifera.

Insects

Katherine A Aronstein, Eduardo Saldivar, Rodrigo Vega, Stephanie Westmiller, Angela E Douglas

Affiliations

  1. Honey Bee Research Unit, USDA-ARS, Weslaco, TX 78596, USA. [email protected].
  2. Honey Bee Research Unit, USDA-ARS, Weslaco, TX 78596, USA. [email protected].
  3. Department of Entomology, Cornell University, Ithaca, NY 14853, USA. [email protected].
  4. Department of Entomology, Cornell University, Ithaca, NY 14853, USA. [email protected].
  5. Department of Entomology, Cornell University, Ithaca, NY 14853, USA. [email protected].

PMID: 26466617 PMCID: PMC4553578 DOI: 10.3390/insects3030601

Abstract

We investigated the effect of the parasitic mite Varroa destructor on the immunological and nutritional condition of honey bees, Apis mellifera, from the perspective of the individual bee and the colony. Pupae, newly-emerged adults and foraging adults were sampled from honey bee colonies at one site in S. Texas, USA. Varroa‑infested bees displayed elevated titer of Deformed Wing Virus (DWV), suggestive of depressed capacity to limit viral replication. Expression of genes coding three anti-microbial peptides (defensin1, abaecin, hymenoptaecin) was either not significantly different between Varroa-infested and uninfested bees or was significantly elevated in Varroa-infested bees, varying with sampling date and bee developmental age. The effect of Varroa on nutritional indices of the bees was complex, with protein, triglyceride, glycogen and sugar levels strongly influenced by life-stage of the bee and individual colony. Protein content was depressed and free amino acid content elevated in Varroa-infested pupae, suggesting that protein synthesis, and consequently growth, may be limited in these insects. No simple relationship between the values of nutritional and immune-related indices was observed, and colony-scale effects were indicated by the reduced weight of pupae in colonies with high Varroa abundance, irrespective of whether the individual pupa bore Varroa.

Keywords: Apis mellifera; Varroa mite; deformed wing virus; honey bee; nutritional response to parasite

References

  1. J Invertebr Pathol. 2010 Jan;103 Suppl 1:S48-61 - PubMed
  2. Virology. 2011 Aug 15;417(1):106-12 - PubMed
  3. Int J Biochem Cell Biol. 2009 May;41(5):1006-10 - PubMed
  4. Exp Appl Acarol. 2000 Mar;24(3):165-89 - PubMed
  5. BMC Genomics. 2011 Oct 10;12:496 - PubMed
  6. Insect Mol Biol. 2006 Oct;15(5):645-56 - PubMed
  7. Trends Ecol Evol. 2011 May;26(5):242-8 - PubMed
  8. J Gen Virol. 2011 Jan;92(Pt 1):156-61 - PubMed
  9. Science. 2000 Nov 10;290(5494):1166-8 - PubMed
  10. J Gen Virol. 2009 Feb;90(Pt 2):448-56 - PubMed
  11. PLoS Pathog. 2011 Dec;7(12):e1002223 - PubMed
  12. Bioessays. 2010 Oct;32(10):845-6 - PubMed
  13. Parasitology. 2007 Mar;134(Pt 3):405-12 - PubMed
  14. J Invertebr Pathol. 2005 Oct;90(2):118-21 - PubMed
  15. J Invertebr Pathol. 2010 Jan;103 Suppl 1:S96-119 - PubMed
  16. Nucleic Acids Res. 2001 May 1;29(9):e45 - PubMed
  17. Trends Ecol Evol. 1996 Aug;11(8):317-21 - PubMed
  18. Nat Rev Immunol. 2008 Nov;8(11):889-95 - PubMed
  19. Adv Virus Res. 2007;70:33-80 - PubMed
  20. Proc Natl Acad Sci U S A. 2005 May 24;102(21):7470-5 - PubMed
  21. J Gen Virol. 2009 May;90(Pt 5):1093-103 - PubMed
  22. J Gen Virol. 2005 Dec;86(Pt 12):3419-24 - PubMed
  23. BMC Genomics. 2008 Jun 25;9:301 - PubMed
  24. J Gen Virol. 2009 Feb;90(Pt 2):463-7 - PubMed

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