In Argentina, bee virus studies are still incipient, and there are no studies regarding the climatic effect. The aim of this study was to assess and compare the presence of honeybee viruses in different climatic regions from Argentina. A total of 385 colonies distributed in five Argentinean eco-regions were examined to evaluate the percentage of infestation with Varroa destructor and the presence of seven virus species (Deformed wing virus, DWV; Acute bee paralysis virus, ABPV; Chronic bee paralysis virus, CBPV; Black queen cell virus, BQCV; Kashmer bee virus, KBV; Israeli acute bee paralysis virus, IAPV; and Sacbrood bee virus, SBV) after honey yield. Two viruses, KBV and IAPV, were not detected. The other five viruses were found in different prevalences: DWV (35%), ABPV (21.5%), BQCV (8.0%), CBPV (2.2%), and SBV (1.1%). We found double and triple viral associations in approximately 25% of the sampled colonies. The mean V. destructor infestation in the colonies prior to the acaricide treatment was 7.12%±8.7%. The knowledge of the prevalence of these viruses in the region and their relation with the mite and other possible influencing factors is important for preventing colony losses. Further studies are necessary to identify the risk factors associated with virus presence and its relationship with other pathogens such as V. destructor.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ram.2016.12.004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Complete genome sequence of a novel iflavirus from wheat sawfly (Dolerus tritici).
Arch Virol
December 2024
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China.
Little is known about the insect viruses in wheat sawfly, Dolerus tritici, which is an important agricultural insect feeding on wheat leaves. Here, we used RNA sequencing to identify a novel single positive-strand RNA virus from the larvae of wheat sawfly collected in northern China and then determined its complete genome sequence by rapid amplification of cDNA ends. The complete genome is 9,594 nt in length, including a polyA tail at its 3' terminus, and it is predicted to encode a 326.
View Article and Find Full Text PDFSelection of Honey Bee () Genotypes for Three Generations of Low and High Population Growth of the Mite .
Animals (Basel)
December 2024
School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
Honey bee () population declines have been associated with the parasitic mite, , which is currently primarily controlled by the use of acaricides. An alternative is to breed for resistance to , which was conducted in this study by bidirectional selection for mite fall to obtain colonies with low (resistant) or high (susceptible) population growth (LVG and HVG, respectively). Selection for three generations resulted in approx.
View Article and Find Full Text PDFPhasmavirus-derived genome sequences and endogenous viral element identified in the small hive beetle, Aethina tumida Murray.
J Invertebr Pathol
December 2024
Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611, United States; University of Florida Genetics Institute, Gainesville, FL 32610, United States. Electronic address:
The small hive beetle (SHB), Aethina tumida Murray is an invasive pest of the honey bee. This beetle feeds not only on bee resources within the hive such as honey and pollen, but also on bee brood and dead bees. The impact of this beetle's intimate parasitic association with the honey bee on virus transmission is poorly understood.
View Article and Find Full Text PDFA honey bee-associated virus remains infectious and quantifiable in postmortem hosts.
J Invertebr Pathol
December 2024
University of Illinois Urbana-Champaign, Urbana, IL 61801, United States.
Corpse-mediated pathogen transmission is a viable route through which naïve hosts can become infected, but its likelihood for honey bee-associated viruses is largely unknown. While these viruses can be easily detected in deceased bees, it remains unclear if they stay infectious within postmortem hosts or if enough viral RNA degradation-and subsequently virus inactivation-occurs post-host death to render these viruses inviable. This knowledge gap has important implications for how researchers perform honey bee virus studies and for our general understanding of honey bee virus transmission.
View Article and Find Full Text PDFSynergistic impacts of propargite exposure and deformed wing virus infection on the health of western honey bees.
Ecotoxicol Environ Saf
December 2024
Department of Entomology, National Taiwan University, Taipei 106, Taiwan; Master Program for Plant Medicine, National Taiwan University, Taipei 106, Taiwan. Electronic address:
This study aimed to elucidate the possible synergistic effects of chemical pesticides and viral infections. Our experiments demonstrated that the Varroa mite-borne deformed wing virus (DWV) by itself had a minimal impact on bees. Conversely, when bees were simultaneously treated with acaricides, their mortality rate increased.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!