Results 41 to 50 of about 4,544 (206)

The Epidemiological Situation of the Managed Honey Bee (Apis mellifera) Colonies in the Italian Region Emilia-Romagna

open access: yesVeterinary Sciences, 2022
The recent decades witnessed the collapse of honey bee colonies at a global level. The major drivers of this collapse include both individual and synergic pathogen actions, threatening the colonies’ survival.
Giovanni Cilia   +4 more
doaj   +1 more source

Molecular Characterization of Clinical Leishmania Major Isolates Harboring ITS1 Homology Similar to the One in Crithidia spp.

open access: yesمجله دانشکده پزشکی اصفهان, 2018
Background: Leishmaniasis is caused by the protozoan Leishmania spp. In some loci from Iran, some isolates have ITS1 like the one in Crithidia spp. Therefore, in this study, we analyzed molecular characters of the mentioned isolates.
Mina Aghai-Maybodi   +6 more
doaj   +1 more source

Neither sulfoxaflor, Crithidia bombi, nor their combination impact bumble bee colony development or field bean pollination

open access: yesScientific Reports, 2023
Many pollinators, including bumble bees, are in decline. Such declines are known to be driven by a number of interacting factors. Decreases in bee populations may also negatively impact the key ecosystem service, pollination, that they provide ...
Edward A. Straw   +9 more
doaj   +1 more source

Temporal analysis of the honey bee microbiome reveals four novel viruses and seasonal prevalence of known viruses, Nosema, and Crithidia. [PDF]

open access: yesPLoS ONE, 2011
Honey bees (Apis mellifera) play a critical role in global food production as pollinators of numerous crops. Recently, honey bee populations in the United States, Canada, and Europe have suffered an unexplained increase in annual losses due to a ...
Charles Runckel   +6 more
doaj   +1 more source

Genomic Variation among Strains of Crithidia bombi and C. expoeki

open access: yesmSphere, 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
doaj   +1 more source

Ecological Factors Shaping Nosema and Crithidia Prevalence in Coastal Sage Scrub Bee and Ant Communities [PDF]

open access: yes, 2022
Pathogens are one of the major factors attributed to bee species declines. Flowers can serve as hubs for bee pathogens and shared floral resources mediate the acquisition of pathogens from infected to healthy hosts.
Allen, Christopher William
core  

A draft genome of the honey bee trypanosomatid parasite Crithidia mellificae. [PDF]

open access: yesPLoS ONE, 2014
Since 2006, honey bee colonies in North America and Europe have experienced increased annual mortality. These losses correlate with increased pathogen incidence and abundance, though no single etiologic agent has been identified.
Charles Runckel   +2 more
doaj   +1 more source

Dataset of the next-generation sequencing of variable 16S rRNA from bacteria and ITS2 regions from fungi and plants derived from honeybees kept under anthropogenic landscapes

open access: yesData in Brief, 2021
Forager Apis melliefera honeybees were collected from four localities located in Europe, i.e.: London, UK; Athens, Greece; Marchamalo, Spain and Lublin, Poland. Furthermore, from Asia we have collected A. mellifera as well as A.
Marek Gancarz   +14 more
doaj   +1 more source

Microbiome‐mediated chemical communication in insects: Implications for pest management

open access: yesPest Management Science, EarlyView.
Microbiome–semiochemical interactions involve the following processes: direct microbial synthesis, host gene regulation, precursor biotransformation, microbiome modulation and indirect ecological signaling. Abstract Insects rely on semiochemicals to regulate aggregation, mating, foraging, and host selection. This review synthesizes evidence that insect‐
Ioannis Eleftherianos   +6 more
wiley   +1 more source

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