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Long-term prevalence of the protists Crithidia bombi and Apicystis bombi and detection of the microsporidium Nosema bombi in invasive bumble bees [PDF]

open access: yesEnvironmental Microbiology Reports, 2017
An initial survey in 2009 carried out at a site in northwestern Patagonia region, Argentina, revealed for the first time in South America the presence of the flagellate Crithidia bombi and the neogregarine Apicystis bombi, two pathogens associated with ...
Santiago Plischuk   +2 more
exaly   +4 more sources

Identification, Characterization, and DNA Sequencing of Nosema bombi in Bumblebees from Gangwon Province, Korea

open access: yesInternational journal of industrial entomology and biomaterials, 2013
Kyu-Won Kwak   +2 more
exaly   +3 more sources

Distribution and diversity of Nosema bombi (Microsporidia: Nosematidae) in the natural populations of bumblebees (Bombus spp.) from West Siberia

open access: yesParasitology Research, 2015
Nosema bombi is an obligate intracellular parasite of bumblebees (Hymenoptera, Bombus spp.), which has significant negative effect on individual bumblebees, colony fitness, and development. Recently, several new genetic variants of N. bombi without a defined taxonomic status were identified in natural bumblebee populations from Russia, China, and ...
Valeriya Vavilova   +2 more
exaly   +4 more sources

Molecular characterization of Nosema bombi (Microsporidia: Nosematidae) and a note on its sites of infection in Bombus terrestris (Hymenoptera: Apoidea)

open access: yesJournal of Apicultural Research, 2001
Investigations of queen, worker and male bumble bees (Bombus terrestris) showed that all individuals became infected with Nosema bombi. Infections were found in Malpighian tubules, thorax muscles, fat body tissue and nerve tissue, including the brain ...
Robert J. Paxton   +2 more
exaly   +3 more sources
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Multiple rRNA Variants in a Single Spore of the Microsporidian Nosema bombi

Journal of Eukaryotic Microbiology, 2007
ABSTRACT. To understand the source of the multiple DNA sequence variants of Nosema bombi ribosomal RNA (rRNA) found in a single bumble bee host, we PCR amplified, cloned, and sequenced the partial rRNA gene from 125 clones, which were derived from four out of 46 spores individually isolated from a single host by laser microdissection.
Elaine M, O'Mahony   +2 more
openaire   +2 more sources

The Absence of Nosema bombi in Bumblebees (Bombus spp.) on Farms in Michigan

American Midland Naturalist, 2019
The fungal pathogen Nosema bombi impacts bumblebee fitness and is a factor in population declines throughout North America. Pesticides are also thought to contribute to declines, because they harm the innate immune system of insects, making them more susceptible to disease.
Britton Skuse   +2 more
exaly   +2 more sources

Factors influencing Nosema bombi infections in natural populations of Bombus terrestris (Hymenoptera: Apidae)

Journal of Invertebrate Pathology, 2012
Bumblebees are of profound ecological importance because of the pollination services they provide in natural and agricultural ecosystems. Any decline of these pollinators is therefore of great concern for ecosystem functioning. Increased parasite pressures have been discussed as a major factor for the loss of pollinators.
Anett, Huth-Schwarz   +3 more
openaire   +2 more sources

Colony success of the bumble bee, Bombus terrestris, in relation to infections by two protozoan parasites, Crithidia bombi and Nosema bombi

Insectes Sociaux, 1999
Crithidia bombi is a prevalent endoparasite of bumblebees that is transmitted both horizontally between and vertically within colonies of its host, the bumble bee Bombus terrestris, and to the next generation. By experimentally infecting or not infecting laboratory-raised colonies with a standard inoculum before their transfer to the field, this study ...
B. Imhoof, P. Schmid-Hempel
openaire   +1 more source

Effects of Nosema bombi and its treatment fumagillin on bumble bee (Bombus occidentalis) colonies

Journal of Invertebrate Pathology, 2003
We examined the effects of Nosema bombi (Microsporidia: Nosematidae) on colonies of bumble bees, Bombus occidentalis Greene (Hymenoptera: Apidae), used to pollinate tomatoes in commercial greenhouses. We assessed methods of detecting N. bombi and tested the effectiveness of fumagillin to control this parasite. N.
Robin, Whittington, Mark L, Winston
openaire   +2 more sources

A field experiment on the effect of Nosema bombi in colonies of the bumblebee Bombus terrestris

Ecological Entomology, 2008
Abstract 1.  Nosema bombi is a microsporidian parasite of bumblebees that is of potentially great ecological and economic importance. Nosema bombi has been shown to have detrimental fitness effects on the bumblebee
OLIVER OTTI, PAUL SCHMID‐HEMPEL
openaire   +1 more source

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