scholarly journals Ligand selectivity in tachykinin and natalisin neuropeptidergic systems of the honey bee parasitic mite Varroa destructor

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Hongbo Jiang ◽  
Donghun Kim ◽  
Sharon Dobesh ◽  
Jay D. Evans ◽  
Ronald J. Nachman ◽  
...  
Keyword(s):  
Honey Bee ◽  
Varroa Destructor ◽  
Ligand Selectivity ◽  
Parasitic Mite

scholarly journals Neonicotinoid Clothianidin reduces honey bee immune response and contributes to Varroa mite proliferation

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Desiderato Annoscia ◽  
Gennaro Di Prisco ◽  
Andrea Becchimanzi ◽  
Emilio Caprio ◽  
Davide Frizzera ◽  
...  
Keyword(s):  
Immune Responses ◽  
Honey Bee ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Negative Impact ◽  
Asymptomatic Infection ◽  
Varroa Mite ◽  
Deformed Wing Virus ◽  
Synergistic Interactions ◽  
Parasitic Mite

AbstractThe neonicotinoid Clothianidin has a negative impact on NF-κB signaling and on immune responses controlled by this transcription factor, which can boost the proliferation of honey bee parasites and pathogens. This effect has been well documented for the replication of deformed wing virus (DWV) induced by Clothianidin in honey bees bearing an asymptomatic infection. Here, we conduct infestation experiments of treated bees to show that the immune-suppression exerted by Clothianidin is associated with an enhanced fertility of the parasitic mite Varroa destructor, as a possible consequence of a higher feeding efficiency. A conceptual model is proposed to describe the synergistic interactions among different stress agents acting on honey bees.

scholarly journals Three QTL in the honey bee Apis mellifera L. suppress reproduction of the parasitic mite Varroa destructor

2011 ◽  
Vol 1 (4) ◽  
pp. 451-458 ◽  
Author(s):  
Dieter Behrens ◽  
Qiang Huang ◽  
Cornelia Geßner ◽  
Peter Rosenkranz ◽  
Eva Frey ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Varroa Destructor ◽  
Parasitic Mite

scholarly journals Advances and perspectives in selecting resistance traits against the parasitic mite Varroa destructor in honey bees

2020 ◽  
Vol 52 (1) ◽  
Author(s):  
Matthieu Guichard ◽  
Vincent Dietemann ◽  
Markus Neuditschko ◽  
Benjamin Dainat
Keyword(s):  
Honey Bee ◽  
Environmental Effects ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Selection Strategy ◽  
Pollination Services ◽  
Colony Losses ◽  
New Host ◽  
Parasitic Mite ◽  
Resistance Traits

Abstract Background In spite of the implementation of control strategies in honey bee (Apis mellifera) keeping, the invasive parasitic mite Varroa destructor remains one of the main causes of colony losses in numerous countries. Therefore, this parasite represents a serious threat to beekeeping and agro-ecosystems that benefit from the pollination services provided by honey bees. To maintain their stocks, beekeepers have to treat their colonies with acaricides every year. Selecting lineages that are resistant to infestations is deemed to be a more sustainable approach. Review Over the last three decades, numerous selection programs have been initiated to improve the host–parasite relationship and to support honey bee survival in the presence of the parasite without the need for acaricide treatments. Although resistance traits have been included in the selection strategy of honey bees, it has not been possible to globally solve the V. destructor problem. In this study, we review the literature on the reasons that have potentially limited the success of such selection programs. We compile the available information to assess the relevance of selected traits and the potential environmental effects that distort trait expression and colony survival. Limitations to the implementation of these traits in the field are also discussed. Conclusions Improving our knowledge of the mechanisms underlying resistance to V. destructor to increase trait relevance, optimizing selection programs to reduce environmental effects, and communicating selection outcomes are all crucial to efforts aiming at establishing a balanced relationship between the invasive parasite and its new host.

scholarly journals Honey bee parasitic mite contains the sensory organ expressing ionotropic receptors with conserved functions

2018 ◽  
Author(s):  
Jing Lei ◽  
Qiushi Liu ◽  
Tatsuhiko Kadowaki
Keyword(s):  
Honey Bee ◽  
Varroa Destructor ◽  
Sensory Organ ◽  
Ionotropic Receptors ◽  
Arthropod Evolution ◽  
Tropilaelaps Mercedesae ◽  
Parasitic Mite ◽  
Parasitic Mites ◽  
Insight Into ◽  
Sensory Mechanisms

AbstractHoney bee parasitic mites (Tropilaelaps mercedesae and Varroa destructor) detect temperature, humidity, and odor but the underlying sensory mechanisms are poorly understood. To uncover how T. mercedesae responds to environmental stimuli inside a hive, we identified the sensilla-rich sensory organ on the foreleg tarsus. The organ contained four types of sensilla, which may respond to different stimuli based on their morphology. We found the forelegs were enriched with mRNAs encoding sensory proteins such as ionotropic receptors (IRs) and gustatory receptors (GRs), as well as proteins involved in ciliary transport. We also found that T. mercedesae and Drosophila melanogaster IR25a and IR93a are functionally equivalent. These results demonstrate that the structures and physiological functions of ancient IRs have been conserved during arthropod evolution. Our study provides insight into the sensory mechanisms of honey bee parasitic mites, as well as potential targets for methods to control the most serious honey bee pest.

scholarly journals Ethological Aspects of Honeybee Apis mellifera (Hymenoptera, Apidae), Adaptation to Parasitic Mite Varroa Destructor (Mesostigmata, Varroidae) Invasion

2010 ◽  
Vol 44 (1) ◽  
pp. e-32-e-37 ◽  
Author(s):  
I. Akimov ◽  
V. Kiryushyn
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Varroa Destructor ◽  
Host System ◽  
Comparative Efficiency ◽  
Parasitic Mite ◽  
Parasitic Mites ◽  
Selection Of

Ethological Aspects of HoneybeeApis mellifera(Hymenoptera, Apidae), Adaptation to Parasitic MiteVarroa Destructor(Mesostigmata, Varroidae) InvasionSome ethological aspects ofA. melliferaLinnaeus, 1758 (Hymenoptera, Apidae), adaptation to parasiting the miteV. destructorAnderson et Trueman (Mesostigmata, Varroidae) are shown. The basic complexes of behaviour reactions, directed on a fight against the parasitic mites of bees brood at the genusApisare shown, their comparative efficiency under various conditions and evolutional perspective. Possibility of ethological adaptation of honey bee toV. destructorparasiting, direction of selection by this sign and influencing of human on parasitic-host system was discussed. An approach to the selection of bees with the purpose of resistanse to varroosis promoution is proposed.

scholarly journals Toxicity of Anethole and the Essential Oils of Lemongrass and Sweet Marigold to the Parasitic Mite Varroa destructor and Their Selectivity for Honey Bee (Apis mellifera) Workers and Larvae

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Qodratollah Sabahi ◽  
Mollah Md. Hamiduzzaman ◽  
Juan S. Barajas-Pérez ◽  
Jose M. Tapia-Gonzalez ◽  
Ernesto Guzman-Novoa
Keyword(s):  
Essential Oils ◽  
Honey Bee ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Acetyl Cholinesterase ◽  
Cymbopogon Citratus ◽  
Toxic Compound ◽  
Parasitic Mite ◽  
Detoxifying Enzyme ◽  
Honey Bee Workers

This study examined the toxicity of anethole and that of the essential oils of lemongrass (Cymbopogon citratus) and sweet marigold (Tagetes lucida) to the mite Varroa destructor and to honey bee workers and larvae. Anethole was the most toxic compound to V. destructor (LC50: 304.9 μg/ml), whereas Tagetes oil was the least toxic (LC50: 1256.27 μg/ml). The most and least toxic compounds to worker bees were anethole and Tagetes oil with LD50s of 35942 and 85381 μg/ml, respectively. For larvae, Tagetes oil was the most toxic compound (LD50: 9580.7 μg/ml) and anethole the least toxic (LD50: 14518.0 μg/ml). Anethole and Cymbopogon oil had the highest selectivity ratios. The expression of AChE, a gene that regulates the production of acetyl cholinesterase, a detoxifying enzyme, was not altered in bees treated with the plant compounds at 48 h post-treatment. This study showed that anethole and Cymbopogon oil have potential for controlling Varroa mites and seem to be relatively safe for larvae and adult honey bees.

scholarly journals Genome Sequences of Two Single-Stranded DNA Viruses Identified in Varroa destructor

2018 ◽  
Vol 6 (9) ◽  
Author(s):  
Simona Kraberger ◽  
Gabriel A. Visnovsky ◽  
Ron F. van Toor ◽  
Maketalena F. Male ◽  
Kara Waits ◽  
...  
Keyword(s):  
New Zealand ◽  
Honey Bee ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Genome Sequences ◽  
Single Stranded Dna ◽  
Dna Viruses ◽  
Content Type ◽  
Pathogenic Viruses ◽  
Parasitic Mite

ABSTRACT Varroa destructor is a ubiquitous and parasitic mite of honey bees, infecting them with pathogenic viruses having a major impact on apiculture. We identified two novel circular replication-associated protein (Rep)-encoding single-stranded (CRESS) DNA viruses from V. destructor sampled from a honey bee hive near Christchurch in New Zealand.

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