<i>Nosema ceranae</i> and RNA viruses in honey bee populations of Cuba

Luis, Anais Rodríguez; García, Carlos Ariel Yadró; Invernizzi, Ciro; Branchiccela, Belén; Piñeiro, Adolfo Mauricio Pérez; Morfi, Alejandro Pérez; Zunino, Pablo; Antúnez, Karina

doi:10.1080/00218839.2020.1749451

Cited by 8 publications

(9 citation statements)

References 14 publications

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“…Blue dots on a red background indicate that DWV-A is dominant, but DWV-B is present conversely red dots on a blue background indicate that DWV-B is dominant, but DWV-A is present. The map was constructed by combining global level DWV data [ 33 , 34 ] with more detailed country level info as follows: Argentina (Buenos Aires and Sante Fe) [ 35 ], Australia [ 36 ], Brazil [ 37 ], Chile [ 38 ], China [ 39 ], Cuba [ 40 ], Ethiopia (Tigray) [ 41 ], Fernando de Noronha [ 25 ], France [ 20 ], Germany [ 32 ], Hawaii [This study, 26], Kenya [ 42 ], Papua new guinea [ 13 ], South Africa [ 30 ], Tunisia [ 43 ], Turkey [ 44 ], UK [ 16 ], Uruguay [ 45 ], USA [ 16 ]. The studies used to create this diagram were not required to have used the same primer set as our study.…”

Section: Figurementioning

confidence: 99%

Ten Years of Deformed Wing Virus (DWV) in Hawaiian Honey Bees (Apis mellifera), the Dominant DWV-A Variant Is Potentially Being Replaced by Variants with a DWV-B Coding Sequence

Grindrod

Kevill

Villalobos

et al. 2021

Viruses

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The combination of Deformed wing virus (DWV) and Varroa destructor is arguably one of the greatest threats currently facing western honey bees, Apis mellifera. Varroa’s association with DWV has decreased viral diversity and increased loads of DWV within honey bee populations. Nowhere has this been better studied than in Hawaii, where the arrival of Varroa progressively led to the dominance of the single master variant (DWV-A) on both mite-infested Hawaiian Islands of Oahu and Big Island. Now, exactly 10 years following the original study, we find that the DWV population has changed once again, with variants containing the RdRp coding sequence pertaining to the master variant B beginning to co-dominate alongside variants with the DWV-A RdRp sequence on the mite-infested islands of Oahu and Big Island. In speculation, based on other studies, it appears this could represent a stage in the journey towards the complete dominance of DWV-B, a variant that appears better adapted to be transmitted within honey bee colonies.

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Section: Figurementioning

confidence: 99%

Ten Years of Deformed Wing Virus (DWV) in Hawaiian Honey Bees (Apis mellifera), the Dominant DWV-A Variant Is Potentially Being Replaced by Variants with a DWV-B Coding Sequence

Grindrod

Kevill

Villalobos

et al. 2021

Viruses

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“…High prevalence rates have also been reported for islands. For instance, N. ceranae reached 97.1% prevalence in Cuba [ 35 ], 63% in the Dominica Islands [ 36 ], or 75% in the Macaronesia archipelago of the Canaries [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…The islands offer an interesting stage for studying the colonisation dynamics of invasive pathogens such as N. ceranae, due to the geographic isolation of the host populations. Nonetheless, there are only a few reports on N. ceranae’s prevalence on islands, and these include the Canadian Prince Edward Island and Newfoundland [ 34 ], Caribbean Sea islands such as Cuba [ 35 ] and Dominica [ 36 ], and Pacific Ocean islands such as New Zealand and Norfolk [ 37 , 38 ]. In Europe, surveys of N. ceranae have been reported for Ireland, Great Britain [ 39 , 40 ], Isle of Man [ 41 ], Tuscan archipelago [ 42 ], and the Canary Islands [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Colonisation Patterns of Nosema ceranae in the Azores Archipelago

Lopes

Martín-Hernández

Higes

et al. 2022

Veterinary Sciences

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Nosema ceranae is a highly prevalent pathogen of Apis mellifera, which is distributed worldwide. However, there may still exist isolated areas that remain free of N. ceranae. Herein, we used molecular tools to survey the Azores to detect N. ceranae and unravel its colonisation patterns. To that end, we sampled 474 colonies from eight islands in 2014/2015 and 91 from four islands in 2020. The findings revealed that N. ceranae was not only present but also the dominant species in the Azores. In 2014/2015, N. apis was rare and N. ceranae prevalence varied between 2.7% in São Jorge and 50.7% in Pico. In 2020, N. ceranae prevalence increased significantly (p < 0.001) in Terceira and São Jorge also showing higher infection levels. The spatiotemporal patterns suggest that N. ceranae colonised the archipelago recently, and it rapidly spread across other islands, where at least two independent introductions might have occurred. Flores and Santa Maria have escaped the N. ceranae invasion, and it is remarkable that Santa Maria is also free of Varroa destructor, which makes it one of the last places in Europe where the honey bee remains naive to these two major biotic stressors.

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“…Сучасне бджільництво зазнає значних збитків під впливом низки негативних чинників, до яких належать і вірусні хвороби. Вони є причиною смертності бджіл, а також знижують резистентність організму до збудників хвороб, несприятливих чинників довкілля, послаблюють силу сімей і, як наслідок, зменшують їхню продуктивність (Brosi et al, 2017;Dynes et al, 2019;Bartlet et al, 2019;Hristov et al, 2020;Luis et al, 2020;Bartlet et al, 2021;Saranchuk et al, 2021;Kovalskyi et al, 2021;McMenamin et al, 2021). До розповсюджених вірусних хвороб личинок медоносних бджіл належить мішечкуватий розплід, який в останні два роки переважає серед інших захворювань розплоду в бджолиних сім'ях в Україні.…”

Section: вступunclassified

“…Перебіг захворювання характеризується тим, що сім'ї зменшуються в розмірі, не здатні підтримати мікроклімат в гнізді з настанням холодів і часто гинуть під час зимівлі. Його загострення у бджіл спостерігається під впливом комплексу негативних чинників та патології змішаного характеру, зокрема за високого ступеня інвазії бджіл кліщем Varroa destructor та мікроспоридіями Nosema apis і Nosema ceranae (Carreck et al, 2010;Nazarenko & Yevstafieva, 2019;Kovalchuk et al, 2019;Luis et al, 2020;Yongsawas et al, 2020;Galajda et al, 2021;Berry et al, 2022).…”

Section: вступunclassified

Harmlessness, biostimulating and antiviral action of probiotic “Apinormin” for honey bees

Postoienko¹,

Postoienko²,

Yefimenko³

et al. 2022

SMLNUVMB

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Viral diseases of bees, in particular the sac brood, are an urgent problem of the industry, which brings great losses. The situation worsens in the case of parallel infestation of insects by the Varroa mite. Today, a complex approach is used for the treatment of viral diseases of bees, which is based on a connection of antiviral and antiparasitic measures in combination with drugs that have general strengthening and biostimulating effects. Nevertheless, the issue of developing ecologically safe and effective schemes for the prevention and treatment of bee diseases, in particular viral ones, is relevant today. In this work, the positive effect of using a specific probiotic for bees “Apinormin” for sac brood was investigated. Research in laboratory conditions was carried out on bees of the summer generation, selected into cages. The oral effect of the drug was determined by feeding bees with sugar syrup, the contact effect by spraying the body of insects with an aqueous solution in concentrations of 0.4; 0.8; 4.0; 8.0 %. Under natural conditions, the therapeutic effectiveness of a 4 % solution of “Apinormin” compared to the creation of an infertile period for the period of removal of queens for bee sac brood was determined. In laboratory conditions, the drug was proven to be harmless for bees when used orally in all tested concentrations. It has been established that “Apinormin” significantly increases the life expectancy of insects. Thus, feeding an 8 % probiotic solution slowed down the process of natural dying of bees from 7.24 to 27.75 % in the dynamics of observations. Under natural conditions, the drug did not show an antiviral effect. The effectiveness of the infertile period in the treatment of this viral disease is shown. The obtained positive effect of “Apinormin” on the life extension of bees and the presence of a number of biologically active compounds in its composition serve as a basis for the use of the drug to increase the strength and productivity of families, in case of stress, protein starvation, various technological violations of maintenance and the development of schemes for the prevention and treatment of bacterial diseases of bees. The expediency of using the infertile period for the period of removal of the queens in the following studies, both for self-administration and for working out the schemes of complex therapy of infectious diseases of bees together with the appropriate veterinary drugs, is substantiated.

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Nosema ceranae and RNA viruses in honey bee populations of Cuba

Cited by 8 publications

References 14 publications

Ten Years of Deformed Wing Virus (DWV) in Hawaiian Honey Bees (Apis mellifera), the Dominant DWV-A Variant Is Potentially Being Replaced by Variants with a DWV-B Coding Sequence

Ten Years of Deformed Wing Virus (DWV) in Hawaiian Honey Bees (Apis mellifera), the Dominant DWV-A Variant Is Potentially Being Replaced by Variants with a DWV-B Coding Sequence

Colonisation Patterns of Nosema ceranae in the Azores Archipelago

Harmlessness, biostimulating and antiviral action of probiotic “Apinormin” for honey bees

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