Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.

Evidence of inter-species pathogen transmission from managed to wild bees has sparked concern that emerging diseases could be causing or exacerbating wild bee declines. While some pathogens, like RNA viruses, have been found in pollen and wild bees, the threat these viruses pose to wild bees is larg...

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Main Authors: Adam G Dolezal, Stephen D Hendrix, Nicole A Scavo, Jimena Carrillo-Tripp, Mary A Harris, M Joseph Wheelock, Matthew E O'Neal, Amy L Toth
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5104440?pdf=render
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author Adam G Dolezal
Stephen D Hendrix
Nicole A Scavo
Jimena Carrillo-Tripp
Mary A Harris
M Joseph Wheelock
Matthew E O'Neal
Amy L Toth
author_facet Adam G Dolezal
Stephen D Hendrix
Nicole A Scavo
Jimena Carrillo-Tripp
Mary A Harris
M Joseph Wheelock
Matthew E O'Neal
Amy L Toth
author_sort Adam G Dolezal
collection DOAJ
description Evidence of inter-species pathogen transmission from managed to wild bees has sparked concern that emerging diseases could be causing or exacerbating wild bee declines. While some pathogens, like RNA viruses, have been found in pollen and wild bees, the threat these viruses pose to wild bees is largely unknown. Here, we tested 169 bees, representing 4 families and 8 genera, for five common honey bee (Apis mellifera) viruses, finding that more than 80% of wild bees harbored at least one virus. We also quantified virus titers in these bees, providing, for the first time, an assessment of viral load in a broad spectrum of wild bees. Although virus detection was very common, virus levels in the wild bees were minimal-similar to or lower than foraging honey bees and substantially lower than honey bees collected from hives. Furthermore, when we experimentally inoculated adults of two different bee species (Megachile rotundata and Colletes inaequalis) with a mixture of common viruses that is lethal to honey bees, we saw no effect on short term survival. Overall, we found that honey bee RNA viruses can be commonly detected at low levels in many wild bee species, but we found no evidence that these pathogens cause elevated short-term mortality effects. However, more work on these viruses is greatly needed to assess effects on additional bee species and life stages.
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spelling doaj.art-5021000ba2b44792a74e42f62900726a2022-12-21T17:30:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-011111e016619010.1371/journal.pone.0166190Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.Adam G DolezalStephen D HendrixNicole A ScavoJimena Carrillo-TrippMary A HarrisM Joseph WheelockMatthew E O'NealAmy L TothEvidence of inter-species pathogen transmission from managed to wild bees has sparked concern that emerging diseases could be causing or exacerbating wild bee declines. While some pathogens, like RNA viruses, have been found in pollen and wild bees, the threat these viruses pose to wild bees is largely unknown. Here, we tested 169 bees, representing 4 families and 8 genera, for five common honey bee (Apis mellifera) viruses, finding that more than 80% of wild bees harbored at least one virus. We also quantified virus titers in these bees, providing, for the first time, an assessment of viral load in a broad spectrum of wild bees. Although virus detection was very common, virus levels in the wild bees were minimal-similar to or lower than foraging honey bees and substantially lower than honey bees collected from hives. Furthermore, when we experimentally inoculated adults of two different bee species (Megachile rotundata and Colletes inaequalis) with a mixture of common viruses that is lethal to honey bees, we saw no effect on short term survival. Overall, we found that honey bee RNA viruses can be commonly detected at low levels in many wild bee species, but we found no evidence that these pathogens cause elevated short-term mortality effects. However, more work on these viruses is greatly needed to assess effects on additional bee species and life stages.http://europepmc.org/articles/PMC5104440?pdf=render
spellingShingle Adam G Dolezal
Stephen D Hendrix
Nicole A Scavo
Jimena Carrillo-Tripp
Mary A Harris
M Joseph Wheelock
Matthew E O'Neal
Amy L Toth
Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
PLoS ONE
title Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
title_full Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
title_fullStr Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
title_full_unstemmed Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
title_short Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation.
title_sort honey bee viruses in wild bees viral prevalence loads and experimental inoculation
url http://europepmc.org/articles/PMC5104440?pdf=render
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