Differential expression of immune defences is associated with specific host-parasite interactions in insects. [PDF]
PLoS ONE, 2009 Recent ecological studies in invertebrates show that the outcome of an infection is dependent on the specific pairing of host and parasite. Such specificity contrasts the long-held view that invertebrate innate immunity depends on a broad-spectrum ...
Carolyn Riddell +3 more
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Transmission of a bumblebee parasite is robust despite parasite exposure to extreme temperatures [PDF]
Ecology and Evolution, 2023 All organisms are exposed to fluctuating environmental conditions, such as temperature. How individuals respond to temperature affects their interactions with one another.
Hannah S. Wolmuth‐Gordon +1 more
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Differential bumble bee gene expression associated with pathogen infection and pollen diet [PDF]
BMC Genomics, 2023 Background Diet and parasitism can have powerful effects on host gene expression. However, how specific dietary components affect host gene expression that could feed back to affect parasitism is relatively unexplored in many wild species.
Jonathan J. Giacomini +3 more
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Microbial Pressure and Social Immunity: Bumble Bees Increase Brood Hygiene After Exposure to a <i>Bacillus thuringiensis</i>-Based Biopesticide. [PDF]
Ecol EvolIn social insect colonies, diseased or dead brood is identified and removed by workers to prevent the infection of the whole colony. Here, bumble bee larvae exposed to a bacterium (Bacillus thuringiensis ssp. aizawai (strain: ABTS‐1857)) based biopesticide were removed more frequently than wounded or untreated control larvae. This shows that bumble bee
Scheffler M +4 more
europepmc +2 more sources
Parasites of the genus Nosema, Crithidia and Lotmaria in the honeybee and bumblebee populations: a case study in India [PDF]
Вавиловский журнал генетики и селекции, 2018 The populations of honeybees and bumblebees have been decreasing around the world in the recent decades. A variety of pathogens and parasites, including bacteria, fungi, protozoa, nematodes, mites and insects play signi ficant role in honeybee and ...
V. Y. Vavilova +4 more
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Genomic Variation among Strains of
mSphere, 2019 In this study, we sequenced and analyzed the genomes of 40 strains, in addition to the already-reported two type strains, of two Crithidia species infecting bumblebees in Alaska and Central Europe and demonstrated that different strains of Crithidia ...
Evgeny Gerasimov +4 more
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How Population Structure and Nest Membership Shape Pathogen Patterns in Bumble Bees. [PDF]
Mol EcolABSTRACT Host density, genetic diversity and social groups are key factors influencing pathogen transmission in wildlife populations, but their interactions remain poorly understood in insects. Islands can provide natural laboratories with distinct populations that vary in density and genetic diversity, whereby dense, genetically homogeneous ...
Dobelmann J, Wilfert L.
europepmc +2 more sources
Urban landscapes tend to increase the presence of pathogenic protozoa, microsporidia and viruses, but likely decrease the abundance of viruses in wild bees and wasps. [PDF]
Insect Sci• The bees Anthophora plumipes and Osmia cornuta had a higher occurrence probability of the neogregarine protozoan Apicystis bombi in more fragmented urban areas.• In the bee Halictus scabiosae and wasp Polistes dominula, hotter urban areas increased the likelihood of occurrence of viruses.• The viruses were found to be replicative in the samples, and ...
Ferrari A, Cilia G, Polidori C.
europepmc +2 more sources
Seasonally increasing parasite load is associated with microbiota dysbiosis in wild bumblebees [PDF]
mSystemsGut microbiota often influence host defense against infection, but this relationship is incompletely understood in wild bumblebees. These critical pollinators host a characteristic core gut microbiota, yet field studies have offered conflicting insights ...
Mark G. Young +7 more
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The trypanosomatid (Kinetoplastida: Trypanosomatidae) parasites in bees: A review on their environmental circulation, impacts and implications [PDF]
Current Research in Insect ScienceTrypanosomatids, obligate parasites capable of impacting insects' hindgut, have recently obtained considerable attention, especially about their effects on bees. While Crithidia mellificae and C.
Rossella Tiritelli +2 more
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