Monday , March 1 2021

The study shows that a dangerous bee virus can be an innocent viewer



Professor Madeleine Beekman with beehives. Credit: University of Sydney

Researchers at the University of Sydney have discovered that the relationship between tissue suction Varroa Acne and the virulence of a honey bee virus, it is very likely that you have misunderstood.


The study questions the belief carried out that the parasite Varroa Myth – a mite that sucks the honey bee tissue – transmits the virus to the deformed fins of the bees and, when doing so, changes the virus to make it more virulent and deadly.

Research published today a Acts of the Royal Society B: Biological sciences concludes that this belief is incorrect.

"The predominant wisdom is that mite selects very virulent strains of the virus," said Professor Madeleine Beekman of the School of Environmental Sciences and Life at the University of Sydney.

"For this reason, the virus is known as a very dangerous virus and Australian beekeepers claim that this virus does not have to enter the country. In fact, there is legislation that prevents the importation of any product of # 39; bee that can contain the virus. But our work shows that the virus is more likely to be an innocent viewer. "

Australia is the only country in the world that remains free of the Varroa mite This causes Australia's honey and wax to be valuable because it is free from chemical waste used to eliminate the parasite.

"Australia is the last country in the world to produce completely pure honey," says Professor Beekman. "But mite is very likely to arrive in Australia in shipping containers, so we have to understand how mites and viruses interact."

Professor Beekman and his team on the behavior and genetics of the social insect laboratory injected bee pupae with high levels of deformed fins virus that is transported by acne to test if the virus was too much Virulent due to changes in the transmission path that occurred through the Varroa mite

<a href = "https://3c1703fe8d.site.internapcdn.net/newman/gfx/news/hires/2019/1-studyshowsda.jpg" title = "Honey bee with Varroa mite parasite. Credit: Pixabay ">
The study shows that a dangerous bee virus can be an innocent viewer

Bee with honey Varroa mite parasite. Credit: Pixabay

In the absence of acarus, the virus must be transmitted to other bees through direct interactions between an infected bee and not infected. Varroa the transmission bites a bee and another.

The team found the route of transmission that the Varroa Mite selects against viruses that are much more virulent than the deformation virus, such as the Sacbrood virus and the black queen virus. These viruses usually suppress the deformed wing virus. Removal of the Sacbrood virus and Black Queencell leaves only the deformed Virus, which does not kill the bees.

"Our work, therefore, changes our understanding of the effect Varroa It has on the virus of the deformed wings and the health of the colonies of honey bees, "Professor Beekman said.

"It means that we should not be afraid of the virus, but instead we must focus on eliminating mood and reducing its numbers."

The results will also have an impact on how Australian beekeepers can prepare for the arrival of Varroa.

"Many countries actively select the populations of honey bees that can tolerate Varroa mite without treatment. Australian beekeepers want to import sperm from these populations to start preparing their honey bees when it comes to acarus, "Professor Beekman said.

"But the importation of sperm is currently prohibited due to the threat of Deformed Virus, which may be present in bee sperm. Maybe beekeepers can already convince the authorities that they are Sperm bees are safe. "

"If we want to protect bees, now it does not seem to make sense to try to fight the virus," Professor Beekman said. "Instead, you have to focus on ensuring that the amount of mites in the honey bee colonies remains low."


Explore more:
The disease of the bee is a mystery

More information:
Direct transmission by injection affects the competition between RNA viruses in bees, Acts of the Royal Society B, rspb.royalsocietypublishing.or … .1098 / rspb.2018.2452

Journal reference:
Acts of the Royal Society B

Provided by:
University of Sydney


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