How Varroa Parasitism affects the immunological and nutritional status of the honey bee, Apis mellifera

Aronstein, K., Saldivar, E., Vega, R., Westmiller, S. and Douglas, A. (2012) How Varroa Parasitism affects the immunological and nutritional status of the honey bee, Apis mellifera. Insects, 3 (3). pp. 601-615. ISSN 2075-4450.

[img]
Preview
PDF
Aronstein Vega etal Insects2012 Apis mellifera and Varroa parasitism.pdf - Published Version

Download (167kB) | Preview

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.

Item Type: Article
Subjects: Q Science
Q Science > Q Science (General)
Q Science > Q Science (General) > Q0002 General
Q Science > QH Natural history
Q Science > QH Natural history > QH0301 Biology (General)
Q Science > QH Natural history > QH0301 Biology (General) > QH0540 Ecology
Q Science > QL Zoology
Q Science > QL Zoology > QL0001 General
Q Science > QL Zoology > QL0360 Invertebrates
Q Science > QL Zoology > QL0360 Invertebrates > QL0461 Insects
Divisions: Faculty of Social and Applied Sciences > School of Human and Life Sciences
Depositing User: Dr Rodrigo Vega
Date Deposited: 27 Apr 2017 13:51
Last Modified: 28 Apr 2017 04:15
URI: https://create.canterbury.ac.uk/id/eprint/15795

Actions (login required)

Update Item (CReaTE staff only) Update Item (CReaTE staff only)

Downloads

Downloads per month over past year

View more statistics

Share

Connect with us

Last edited: 29/06/2016 12:23:00