Results 11 to 20 of about 11,143 (221)

Extracts From Grapefruit (Citrus paradisi) Peel via Microwave‐Assisted and Conventional Extractions: Evaluation of Nosema Infection and Toxicity in Honey Bees [PDF]

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Conventional and microwave‐assisted extractions of grapefruit peels were optimized using response surface methodology (RSM) based on TPC, TFC, and antioxidant activity (DPPH). The phytochemical profiles of the two optimum extracts were characterized via HPLC before evaluating their acute and chronic toxicity, as well as their effects on honey bee (Apis
Muhammet Mükerrem Kaya   +4 more
wiley   +2 more sources

Winter Bottom Beehive Cadavers as a Tool for Assessing Nosema ceranae Infestation Intensity in Honeybee Colonies in Regions with Different Beekeeping Densities in Slovakia [PDF]

open access: yesMicroorganisms
Honeybee (Apis mellifera) colony density is frequently assumed to influence the level of Nosema ceranae infestation in managed colonies. In Slovakia, winter bottom beehive debris (dead worker bees) is routinely collected between January and February ...
Simona Hriciková   +3 more
doaj   +2 more sources

Immune priming of honey bees protects against a major microsporidian pathogen [PDF]

open access: yesPest Management Science, Volume 81, Issue 12, Page 7939-7949, December 2025.
We immune‐primed honey bees at two developmental stages in the laboratory and the field with heat‐killed Nosema ceranae spores. When subsequently fed live spores, immune‐primed adults had lower infection levels. Abstract BACKGROUND Honey bees face significant threats from pathogens like Nosema ceranae, a microsporidian parasite that contributes to ...
James C. Nieh   +6 more
wiley   +2 more sources

Study on Major Diseases, Pests, and Predators of Honeybees (Apis mellifera L.) in East Shewa and West Arsi Zones of Oromia, Ethiopia [PDF]

open access: yesVeterinary Medicine International, Volume 2026, Issue 1, 2026.
A cross‐sectional study design was conducted across agroecological zones in East Shewa and West Arsi Zones of Oromia, Ethiopia, from September 2020 to November 2021 to identify the types, prevalence, and potential risk factors associated with honeybee diseases, pests, and predators.
Taye Beyene   +4 more
wiley   +2 more sources

Genome Structure, Evolution, and Host Shift of Nosema [PDF]

open access: yesBiology
Nosema is a diverse fungal genus of unicellular, obligate symbionts infecting various arthropods. We performed comparative genomic analyses of seven Nosema species that infect bees, wasps, moths, butterflies, and amphipods.
Xiao Xiong   +6 more
doaj   +2 more sources

Does Nosema ceranae Wipe Out Nosema apis in Turkey?

open access: yesIranian Journal of Parasitology, 2016
Background: The aim of this study was to determine the prevalence of the Nosema ceranae and Nosema apis among apiaries using both spore counts and multiplex PCR and the replacement of N. apis by N. ceranae in some regions of Turkey.
Rahşan IVGIN TUNCA   +3 more
doaj   +6 more sources

Molecular and phylogenetic characterization of honey bee viruses, Nosema microsporidia, protozoan parasites, and parasitic mites in China [PDF]

open access: yes, 2008
China has the largest number of managed honey bee colonies, which produce the highest quantity of honey and royal jelly in the world; however, the presence of honey bee pathogens and parasites has never been rigorously identified in Chinese apiaries.
Yang, Bu   +3 more
core   +5 more sources

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

open access: yes, 2019
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.
Bramke, Kathrin   +3 more
core   +1 more source

So near and yet so far: Harmonic radar reveals reduced homing ability of nosema infected honeybees [PDF]

open access: yes, 2014
Pathogens may gain a fitness advantage through manipulation of the behaviour of their hosts. Likewise, host behavioural changes can be a defence mechanism, counteracting the impact of pathogens on host fitness.
Clark, Suzanne J.   +6 more
core   +4 more sources

Prevalence of the Microsporidian Nosema spp. in Honey Bee Populations (Apis mellifera) in Some Ecological Regions of North Asia

open access: yesVeterinary Sciences, 2020
Two species of microsporidia, Nosema apis and Nosema ceranae, are obligate intracellular parasites that are widespread in the world and cause the infectious disease (Nosemosis) of the Western honey bee Apis mellifera.
Nadezhda V. Ostroverkhova   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy