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https://www.readbyqxmd.com/read/28829832/allergen-homologs-in-the-euroglyphus-maynei-draft-genome
#1
S Dean Rider, Marjorie S Morgan, Larry G Arlian
Euroglyphus maynei is a house dust mite commonly found in homes worldwide and is the source of allergens that sensitize and induce allergic reactions in humans. It is the source of species-specific allergens as well as allergens that are cross-reactive with the allergens from house dust mites Dermatophagoides farinae and D. pteronyssinus, and the ectoparasitic scabies mite Sarcoptes scabiei. The genomics, proteomics and molecular biology of E. maynei and its allergens have not been as extensively investigated as those of D...
2017: PloS One
https://www.readbyqxmd.com/read/28827634/reputation-management-promotes-strategic-adjustment-of-service-quality-in-cleaner-wrasse
#2
Sandra A Binning, Olivia Rey, Sharon Wismer, Zegni Triki, Gaétan Glauser, Marta C Soares, Redouan Bshary
Adjusting one's behaviour in response to eavesdropping bystanders is considered a sophisticated social strategy, yet the underlying mechanisms are not well studied. Cleaner wrasse, Labroides dimidiatus, cooperate by eating ectoparasites off "client" fishes, or cheat (i.e. bite) and eat client mucus. Image scoring by bystander clients generally causes cleaners from socially-complex (i.e. high cleaner and client abundance; high client species richness) habitats to increase levels of cooperation. However, some individuals may periodically provide tactile stimulation to small resident clients, which attract bystanders close that are bitten, a form of tactical deception...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818044/effects-of-the-vertically-transmitted-microsporidian-facilispora-margolisi-and-the-parasiticide-emamectin-benzoate-on-salmon-lice-lepeophtheirus-salmonis
#3
Jordan D Poley, Ben J G Sutherland, Mark D Fast, Ben F Koop, Simon R M Jones
BACKGROUND: Microsporidia are highly specialized, parasitic fungi that infect a wide range of eukaryotic hosts from all major taxa. Infections cause a variety of damaging effects on host physiology from increased stress to death. The microsporidian Facilispora margolisi infects the Pacific salmon louse (Lepeophtheirus salmonis oncorhynchi), an economically and ecologically important ectoparasitic copepod that can impact wild and cultured salmonids. RESULTS: Vertical transmission of F...
August 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28807312/ectoparasite-caligus-rogercresseyi-modifies-the-lactate-response-in-atlantic-salmon-salmo-salar-and-coho-salmon-oncorhynchus-kisutch
#4
L Vargas-Chacoff, J L P Muñoz, C Hawes, R Oyarzún, J P Pontigo, J Saravia, M P González, O Mardones, B S Labbé, F J Morera, C Bertrán, J Pino, S Wadsworth, A Yáñez
Although Caligus rogercresseyi negatively impacts Chilean salmon farming, the metabolic effects of infection by this sea louse have never been completely characterized. Therefore, this study analyzed lactate responses in the plasma, as well as the liver/muscle lactate dehydrogenase (LDH) activity and gene expression, in Salmo salar and Oncorhynchus kisutch infested by C. rogercresseyi. The lactate responses of Atlantic and Coho salmon were modified by the ectoparasite. Both salmon species showed increasing in plasma levels, whereas enzymatic activity increased in the muscle but decreased in the liver...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807290/exposure-to-vector-borne-pathogens-in-privately-owned-dogs-living-in-different-socioeconomic-settings-in-brazil
#5
Luciana Aguiar Figueredo, Kamila Gaudêncio da Silva Sales, Katrin Deuster, Matthias Pollmeier, Domenico Otranto, Filipe Dantas-Torres
This survey was conducted in four Brazilian cities, from three federative units (Pernambuco, Minas Gerais, and Federal District), representing different socioeconomic settings, to determine the presence of antibodies to or antigens and DNA of selected pathogens in privately owned dogs. From January to April 2015, blood and serum samples were collected and assayed using different tests. In particular, antibodies to Anaplasma spp., Borrelia burgdorferi sensu lato, and Ehrlichia spp., and antigens of Dirofilaria immitis were detected using a rapid enzyme-linked immunosorbent assay, whereas antibodies to Babesia spp...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28797906/amitraz-and-its-metabolite-modulate-honey-bee-cardiac-function-and-tolerance-to-viral-infection
#6
Scott T O'Neal, Carlyle C Brewster, Jeffrey R Bloomquist, Troy D Anderson
The health and survival of managed honey bee (Apis mellifera) colonies are affected by multiple factors, one of the most important being the interaction between viral pathogens and infestations of the ectoparasitic mite Varroa destructor. Currently, the only effective strategy available for mitigating the impact of viral infections is the chemical control of mite populations. Unfortunately, the use of in-hive acaricides comes at a price, as they can produce sublethal effects that are difficult to quantify, but may ultimately be as damaging as the mites they are used to treat...
August 7, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28793927/microbial-population-analysis-of-the-midgut-of-melophagus-ovinus-via-high-throughput-sequencing
#7
De-Yong Duan, Guo-Hua Liu, Tian-Yin Cheng, Ya-Qin Wang
BACKGROUND: Melophagus ovinus, one of the most common haematophagous ectoparasites of sheep, can cause anaemia and reductions in weight gain, wool growth and hide value. However, no information is available about the microfloral structure of the midgut of this ectoparasite. In the present study, we investigated the microbial community structure of the midgut contents of fully engorged female and male M. ovinus using Illumina HiSeq. RESULTS: The phylum showing the highest abundance was Proteobacteria (99...
August 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28792417/vibrio-tapetis-from-wrasse-used-for-ectoparasite-bio-control-in-salmon-farming-phylogenetic-analysis-and-serotyping
#8
Snorre Gulla, Anita Rønneseth, Henning Sørum, Øyvind Vågnes, Sabela Balboa, Jesús L Romalde, Duncan J Colquhoun
So-called 'cleaner fish', including various wrasse (Labridae) species, have become increasingly popular in Norwegian salmon farming in recent years for biocontrol of the salmon louse Lepeophtheirus salmonis. Cleaner fish mortalities in salmon farms are, however, often high. Various bacterial agents are frequently associated with episodes of increased cleaner fish mortality, and Vibrio tapetis is regularly cultured from diseased wrasse. In the present study, we investigated the genetic relationships among 54 V...
August 9, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28789836/relationships-among-different-facets-of-host-specificity-in-three-taxa-of-haematophagous-ectoparasites
#9
Luther van der Mescht, Elizabeth M Warburton, Irina S Khokhlova, Maxim V Vinarski, Natalia P Korallo-Vinarskaya, Boris R Krasnov
Host specificity is a fundamental trait of a parasite species. Recently, multiple aspects of host specificity have been recognized, but the relationships between these facets are still poorly understood. Here, we studied pairwise relationships between basic, structural, phylogenetic and geographic host specificity in three taxa of haematophagous ectoparasitic arthropods that differ in tightness of their association with the host. We asked which metrics of host specificity are correlated within each parasite taxon and whether the patterns of the association between different facets of host specificity are similar among parasite taxa...
August 5, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28783031/patterns-in-the-distribution-and-directional-asymmetry-of-fleas-living-on-the-northern-white-breasted-hedgehog-erinaceus-roumanicus
#10
Krzysztof Dudek, Gabor Foldvari, Viktoria Majlathova, Igor Majlath, Krisztina Rigo, Viktor Molnar, Maria Toth, Lukasz Jankowiak, Piotr Tryjanowski
Fleas infecting northern white-breasted hedgehogs, Erinaceus roumanicus (Barrett-Hamilton), collected from 2009-2011 in Budapest (Hungary) were studied. A total of 305 white-breasted hedgehogs were captured and 1,251 fleas were collected. The flea community comprised two species, the hedgehog flea Archaeopsylla erinacei (Bouche, 1835) and the dog flea Ctenocephalides canis (Curtis, 1826), although the latter was only found on three hedgehogs. Fleas were found on half of the host specimens (51%; n = 156) where their distribution was strongly aggregated...
August 4, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28776226/a-screen-of-pharmaceutical-drugs-for-their-ability-to-cause-short-term-morbidity-and-mortality-in-the-common-bed-bug-cimex-lectularius-l
#11
Johnathan M Sheele, Gale E Ridge, Wenjing Du, Nikhil Mallipeddi, Mayur Vallabhaneni
The common bed bug, Cimex lectularius L., is a hematophagous ectoparasite that preferentially feeds on humans. Pharmaceuticals present in a person's blood may adversely affect C. lectularius when it feeds. We fed >10,000 C. lectularius on blood samples containing more than 400 different drug doses and drug combinations using an in vitro feeding system to determine insect mortality. The majority of drug doses approximated the peak plasma concentration in humans taking those drugs. Twenty-one drugs were found to cause >17% 12-14-day mortality compared to 8...
August 3, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28774495/wild-and-domestic-animals-likely-involved-in-rickettsial-endemic-zones-of-northwestern-colombia
#12
Andrés F Londoño, Leidy Y Acevedo-Gutiérrez, Diana Marín, Verónica Contreras, Francisco J Díaz, Gustavo Valbuena, Marcelo B Labruna, Marylin Hidalgo, Margarita Arboleda, Salim Mattar, Sergio Solari, Juan D Rodas
Between 2006 and 2008, three outbreaks of human rickettsiosis occurred in Northwestern Colombia (municipalities of Necoclí, Los Córdobas and Turbo), with case fatality rates between 27% and 54%. The aim of this study was to determine previous exposure of wild and domestic animals to spotted fever group (SFG) rickettsiae through serological tests, to detect rickettsial evidence in their ectoparasites, and to analyze their possible role in the epidemiology of rickettsial diseases in this zone of the country...
July 21, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28771469/the-prevalence-and-association-with-health-related-quality-of-life-of-tungiasis-and-scabies-in-schoolchildren-in-southern-ethiopia
#13
Stephen L Walker, Eglantine Lebas, Valentina De Sario, Zeleke Deyasso, Shimelis N Doni, Michael Marks, Chrissy H Roberts, Saba M Lambert
BACKGROUND: The prevalence of skin disease in low and middle income countries is high and communicable skin diseases are a significant public health problem. Tungiasis is an ectoparasite infestation caused by the flea Tunga penetrans, which has a widespread geographical distribution. Tungiasis causes painful skin lesions and may affect activities of daily living. OBJECTIVE: We wished to determine the prevalence and impact of tungiasis and scabies in schoolchildren in southern Ethiopia...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28769616/molecular-assessment-of-three-species-of-anilocra-isopoda-cymothoidae-ectoparasites-from-caribbean-coral-reef-fishes-with-the-description-of-anilocra-brillae-sp-n
#14
Rachel L Welicky, Kerry A Hadfield, Paul C Sikkel, Nico J Smit
A morphological review and molecular characterization of Anilocra haemuli Bunkley Williams & Williams, 1981, were completed using specimens collected from Haemulon flavolineatum Desmarest, 1823 (French grunt) and Epinephelus guttatus Linnaeus, 1758 (red hind). Molecular and morphological data suggest that the isopods parasitizing H. flavolineatum and E. guttatus are different species. The specimens collected from E. guttatus are recognized as a new species, Anilocra brillaesp. n. Differences between Anilocra brillaesp...
2017: ZooKeys
https://www.readbyqxmd.com/read/28768553/comparative-in-vitro-evaluation-of-contact-activity-of-fluralaner-spinosad-phoxim-propoxur-permethrin-and-deltamethrin-against-the-northern-fowl-mite-ornithonyssus-sylviarum
#15
Bradley A Mullens, Amy C Murillo, Hartmut Zoller, Anja R Heckeroth, Faris Jirjis, Annie Flochlay-Sigognault
BACKGROUND: Northern fowl mites (Ornithonyssus sylviarum) are obligate hematophagous ectoparasites of both feral birds and poultry, particularly chicken layers and breeders. They complete their entire life-cycle on infested birds while feeding on blood. Infestations of O. sylviarum are difficult to control and resistance to some chemical classes of acaricides is a growing concern. The contact susceptibility of O. sylviarum to a new active ingredient, fluralaner, was evaluated, as well as other compounds representative of the main chemical classes commonly used to control poultry mite infestations in Europe and the USA...
August 3, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28765626/motorboat-noise-disrupts-co-operative-interspecific-interactions
#16
Sophie L Nedelec, Suzanne C Mills, Andrew N Radford, Ricardo Beldade, Stephen D Simpson, Brendan Nedelec, Isabelle M Côté
Human-made noise is contributing increasingly to ocean soundscapes. Its physical, physiological and behavioural effects on marine organisms are potentially widespread, but our understanding remains largely limited to intraspecific impacts. Here, we examine how motorboats affect an interspecific cleaning mutualism critical for coral reef fish health, abundance and diversity. We conducted in situ observations of cleaning interactions between bluestreak cleaner wrasses (Labroides dimidiatus) and their fish clients before, during and after repeated, standardised approaches with motorboats...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764816/genotyping-of-bartonella-bacteria-and-their-animal-hosts-current-status-and-perspectives
#17
M Kosoy, C McKee, L Albayrak, Y Fofanov
Growing evidence demonstrates that bacterial species diversity is substantial, and many of these species are pathogenic in some contexts or hosts. At the same time, laboratories and museums have collected valuable animal tissue and ectoparasite samples that may contain substantial novel information on bacterial prevalence and diversity. However, the identification of bacterial species is challenging, partly due to the difficulty in culturing many microbes and the reliance on molecular data. Although the genomics revolution will surely add to our knowledge of bacterial systematics, these approaches are not accessible to all researchers and rely predominantly on cultured isolates...
August 2, 2017: Parasitology
https://www.readbyqxmd.com/read/28764110/urban-environments-alter-parasite-fauna-weight-and-reproductive-activity-in-the-quenda-isoodon-obesulus
#18
Alison E Hillman, Alan J Lymbery, Aileen D Elliot, R C Andrew Thompson
Some wildlife species are capable of surviving in urbanised environments. However, the implications of urbanisation on wildlife health, and public health regarding zoonoses, are often unknown. Quenda (syn. southern brown bandicoots, Isoodon obesulus) survive in many areas of Perth, Australia, despite urbanisation. This study investigated differences in gastrointestinal and macroscopic ecto-parasitic infections, morphometrics and reproductive status between bushland and urban dwelling quenda. 287 quenda in the greater Perth region were captured and sampled for faeces (to detect gastrointestinal parasites), blood (to detect Toxoplasma gondii antibodies), ectoparasites, and morphometrics...
July 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28761492/gastrointestinal-helminths-and-ectoparasites-in-the-stray-cats-felidae-felis-catus-of-ahar-municipality-northwestern-iran
#19
Mohammad Yakhchali, Nasser Hajipour, Reza Malekzadeh-Viayeh, Bijan Esmaeilnejad, Taher Nemati-Haravani, Mohammad Fathollahzadeh, Rasool Jafari
BACKGROUND: The stray cats are considered as the sources of emerging humans and domestic livestock pathogens and the zoonoses of public health importance. The present study was aimed to elucidate intestinal helminth infections and infestation with ectoparasites of the stray cats of Ahar City, northwestern Iran. METHODS: Totally, 51 stray cats were randomly trapped from different parts of the city between Mar and Nov 2013. The cats were assessed for ectoparasites by hair brushing, skin scraping, acetate tape preparation and othic swabs...
April 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28761469/parasitic-infections-of-bicoloured-white-toothed-shrew-crocidura-leucodon-from-dasht-e-razan-western-iran
#20
Ali Yousefi, Ali Eslami, Sadegh Rahbari, Iraj Mobedi
BACKGROUND: The prevalence and intensity of endo and ectoparasites in shrews inhabiting in the Dasht-e Razan of Hamedan Province, Iran, were determined in this study. METHODS: By live traps, 64 shrews belong to species bicoloured white-toothed shrews (Crocidura leucodon) were trapped during 2010-2012. Captured animals were euthanized and their gender recorded. The blood thick and thin smears were stained with Geimsa and examined for protozoan parasites. Then, ectoparasites were collected and preserved in 70% ethanol and after necropsies; different organs were examined for helminthes...
January 2017: Iranian Journal of Parasitology
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