European isolates of the Microsporidia Nosema apis and Nosema ceranae have similar virulence in laboratory tests on European worker honey bees

Natsopoulou, Myrsini E.; Doublet, Vincent; Paxton, Robert J.

doi:10.1007/s13592-015-0375-9

Cited by 19 publications

(13 citation statements)

References 57 publications

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“…A first study of the within-host competition effect between N. apis and N. ceranae did not show any clear competitive advantage for any of them (Forsgren and Fries 2010). However, a later study identified a priority effect when N. ceranae was the first infection (Natsopoulou et al, 2016). Apparently both environmental variables and interspecies competition are important elements of mathematical models that help explain the differential prevalence of Nosema spp.…”

Section: How Is Nosema Transmitted?mentioning

confidence: 99%

Nosema ceranae in Apis mellifera: a 12 years postdetection perspective

Martín-Hernández

Bartolomé

Chejanovsky

et al. 2018

Environmental Microbiology

161

118

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Nosema ceranae is a hot topic in honey bee health as reflected by numerous papers published every year. This review presents an update of the knowledge generated in the last 12 years in the field of N. ceranae research, addressing the routes of transmission, population structure and genetic diversity. This includes description of how the infection modifies the honey bee's metabolism, the immune response and other vital functions. The effects on individual honey bees will have a direct impact on the colony by leading to losses in the adult's population. The absence of clear clinical signs could keep the infection unnoticed by the beekeeper for long periods. The influence of the environmental conditions, beekeeping practices, bee genetics and the interaction with pesticides and other pathogens will have a direct influence on the prognosis of the disease. This review is approached from the point of view of the Mediterranean countries where the professional beekeeping has a high representation and where this pathogen is reported as an important threat.

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Section: How Is Nosema Transmitted?mentioning

confidence: 99%

Nosema ceranae in Apis mellifera: a 12 years postdetection perspective

Martín-Hernández

Bartolomé

Chejanovsky

et al. 2018

Environmental Microbiology

161

118

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“…The ectoparasitic mite Varroa destructor and the viruses it transmits, particularly deformed wing virus (DWV), are considered the major cause of elevated honey bee mortality [34,35,36,37,38,39,40,41]. Over the last two decades, the emerging microsporidium Nosema ceranae has also become prevalent globally and has been shown to cause honey bee mortality [42,43,44], although the extent to which it is responsible for colony loss has been debated [45,46]. More recently, the wider risk posed by N. ceranae to sympatric wild bee populations has been explored, with studies revealing transmission of the parasite to bumble bees [47,48,49] and solitary bees such as Osmia bicornis [50].…”

Section: Introductionmentioning

confidence: 99%

Exposure of Larvae of the Solitary Bee Osmia bicornis to the Honey Bee Pathogen Nosema ceranae Affects Life History

Bramke

Müller

McMahon

et al. 2019

Insects

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Wild bees are important pollinators of wild plants and agricultural crops and they are threatened by several environmental stressors including emerging pathogens. Honey bees have been suggested as a potential source of pathogen spillover. One prevalent pathogen that has recently emerged as a honey bee disease is the microsporidian Nosema ceranae. While the impacts of N. ceranae in honey bees are well documented, virtually nothing is known about its effects in solitary wild bees. The solitary mason bee Osmia bicornis is a common pollinator in orchards and amenable to commercial management. Here, we experimentally exposed larvae of O. bicornis to food contaminated with N. ceranae and document spore presence during larval development. We measured mortality, growth parameters, and timing of pupation in a semi-field experiment. Hatched individuals were assessed for physiological state including fat body mass, wing muscle mass, and body size. We recorded higher mortality in the viable-spore-exposed group but could only detect a low number of spores among the individuals of this treatment. Viable-spore-treated individuals with higher head capsule width had a delayed pupation start. No impact on the physiological status could be detected in hatched imagines. Although we did not find overt evidence of O. bicornis infection, our findings indicate that exposure of larvae to viable N. ceranae spores could affect bee development.

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“…Microsporidia N. apis Zander, 1909, responsible for type A nosemosis, is a globally distributed parasite specific for the European honeybee, Apis mellifera L. (Zander, 1909). N. apis was for years considered to be the only disease agent of nosemosis in honeybee A. mellifera (Bailey, 1955;Natsopoulou et al, 2015). N. ceranae Fries et al, 1996, responsible for type C nosemosis, was first described in Asian honeybee, Apis cerana Fabricius, at the end of the twentieth century (Fries et al, 1996) and later in honeybees A. mellifera worldwide (Fries et al, 2006;Higes et al, 2006Higes et al, , 2009Higes et al, , 2010aHuang et al, 2007;Klee et al, 2007;Martin-Hernandez et al, 2007;Chen et al, 2008Chen et al, , 2010Williams et al, 2008;Invernizzi et al, 2009;Fries, 2010;Yoshiyama & Kimura, 2011;Medici et al, 2012;Ostroverkhova et al, 2016a, b).…”

Section: Introductionmentioning

confidence: 99%

. Study of Nosema spp. in the Tomsk region, Siberia: co-infection is widespread in honeybee colonies

Ostroverkhova¹,

Кучер²,

Golubeva³

et al. 2019

Far East. entomol.

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Microsporidian protozoans Nosema are gut parasites that infect European honeybees (Apis mellifera) worldwide. In the Tomsk region, two species of microsporidia were registered in honeybees (A. mellifera): N. apis and N. ceranae. During the last 6 years, an increase in infections by Nosema in honeybees has been detected in the Tomsk region, while cases of mass bee colony deaths were rare (in 2016, two cases of winter losses of bee colonies in the northern districts of the Tomsk region have been reported by beekeepers). The infestation of bee colonies and apiaries have changed from 0% in 2012 to about 80% in 2016-2017. In 2013-2014, 60.0% of all infected apiaries were infected only with N. apis. In 2015-2017, most of the infected apiaries (52.2%) were infected with both species of microsporidia. Despite the predominance of co-infection in honeybees, replacement of N. apis by N. ceranae is not observed.

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European isolates of the Microsporidia Nosema apis and Nosema ceranae have similar virulence in laboratory tests on European worker honey bees

Cited by 19 publications

References 57 publications

Nosema ceranae in Apis mellifera: a 12 years postdetection perspective

Nosema ceranae in Apis mellifera: a 12 years postdetection perspective

Exposure of Larvae of the Solitary Bee Osmia bicornis to the Honey Bee Pathogen Nosema ceranae Affects Life History

. Study of Nosema spp. in the Tomsk region, Siberia: co-infection is widespread in honeybee colonies

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