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https://www.readbyqxmd.com/read/28827652/peptide-biomarkers-used-for-the-selective-breeding-of-a-complex-polygenic-trait-in-honey-bees
#1
M Marta Guarna, Shelley E Hoover, Elizabeth Huxter, Heather Higo, Kyung-Mee Moon, Dominik Domanski, Miriam E F Bixby, Andony P Melathopoulos, Abdullah Ibrahim, Michael Peirson, Suresh Desai, Derek Micholson, Rick White, Christoph H Borchers, Robert W Currie, Stephen F Pernal, Leonard J Foster
We present a novel way to select for highly polygenic traits. For millennia, humans have used observable phenotypes to selectively breed stronger or more productive livestock and crops. Selection on genotype, using single-nucleotide polymorphisms (SNPs) and genome profiling, is also now applied broadly in livestock breeding programs; however, selection on protein/peptide or mRNA expression markers has not yet been proven useful. Here we demonstrate the utility of protein markers to select for disease-resistant hygienic behavior in the European honey bee (Apis mellifera L...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818498/antifungal-activity-of-the-essential-oil-obtained-from-cryptocarya-alba-against-infection-in-honey-bees-by-nosema-ceranae
#2
J Bravo, V Carbonell, B Sepúlveda, C Delporte, C E Valdovinos, R Martín-Hernández, M Higes
The honeybee disease nosemosis type C is a serious problem since its causative agent, microsporidium Nosema ceranae, is widespread among adult honey bees. Some of the feasible alternative treatments that are used to control this disease are plant extracts. The aim of the present work was to evaluate the effects of essential oils of Chilean plant species, such as Cryptocarya alba, which is used against N. ceranae, and to identify and quantify the majority active compounds in the EO as well as their potential use for the control of nosemosis...
August 14, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28818308/a-honey-bee-can-threat-ear-sudden-sensorineural-hearing-loss
#3
Ufuk Düzenli, Nazım Bozan, Abdurrahman Ayral, Abdülaziz Yalınkılıç, Ahmet Faruk Kıroğlu
Sudden sensorineural hearing loss is an otologic emergency. Many etiological factors can lead to this pathology. Honey bee (Apis mellifera) sting may lead to local and systemic reactions due to sensitization of the patient. In this paper we described a sudden sensorineural hearing loss occurred after honey bee sting.
August 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28817641/honey-bee-apis-mellifera-colony-health-and-pathogen-composition-in-migratory-beekeeping-operations-involved-in-california-almond-pollination
#4
William Glenny, Ian Cavigli, Katie F Daughenbaugh, Rosemarie Radford, Susan E Kegley, Michelle L Flenniken
Honey bees are important pollinators of agricultural crops. Pathogens and other factors have been implicated in high annual losses of honey bee colonies in North America and some European countries. To further investigate the relationship between multiple factors, including pathogen prevalence and abundance and colony health, we monitored commercially managed migratory honey bee colonies involved in California almond pollination in 2014. At each sampling event, honey bee colony health was assessed, using colony population size as a proxy for health, and the prevalence and abundance of seven honey bee pathogens was evaluated using PCR and quantitative PCR, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28809782/dietary-supplementation-of-honey-bee-larvae-with-arginine-and-abscisic-acid-enhances-nitric-oxide-and-granulocyte-immune-responses-after-trauma
#5
Pedro Negri, Leonor Ramirez, Silvina Quintana, Nicolás Szawarski, Matías Maggi, Yves Le Conte, Lorenzo Lamattina, Martin Eguaras
Many biotic and abiotic stressors impact bees' health, acting as immunosupressors and contribute to colony losses. Thus, the importance of studying the immune response of honey bees is central to develop new strategies aiming to enhance bees' fitness to confront the threats affecting them. If a pathogen breaches the physical and chemical barriers, honey bees can protect themselves from infection with cellular and humoral immune responses which represent a second line of defense. Through a series of correlative studies we have previously reported that abscisic acid (ABA) and nitric oxide (NO) share roles in the same immune defenses of Apis mellifera (A...
August 15, 2017: Insects
https://www.readbyqxmd.com/read/28803879/pathway-profiles-based-on-gene-set-enrichment-analysis-in-the-honey-bee-apis-mellifera-under-brood-rearing-suppressed-conditions
#6
Kyungmun Kim, Ju Hyeon Kim, Young Ho Kim, Seong-Eui Hong, Si Hyeock Lee
Perturbation of normal behaviors in honey bee colonies by any external factor can immediately reduce the colony's capacity for brood rearing, which can eventually lead to colony collapse. To investigate the effects of brood-rearing suppression on the biology of honey bee workers, gene-set enrichment analysis of the transcriptomes of worker bees with or without suppressed brood rearing was performed. When brood rearing was suppressed, pathways associated with both protein degradation and synthesis were simultaneously over-represented in both nurses and foragers, and their overall pathway representation profiles resembled those of normal foragers and nurses, respectively...
August 10, 2017: Genomics
https://www.readbyqxmd.com/read/28797906/amitraz-and-its-metabolite-modulate-honey-bee-cardiac-function-and-tolerance-to-viral-infection
#7
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/28795524/resin-foraging-dynamics-in-varroa-destructor-infested-hives-a-case-of-medication-of-kin
#8
Michelina Pusceddu, Giannella Piluzza, Panagiotis Theodorou, Franco Buffa, Luca Ruiu, Simonetta Bullitta, Ignazio Floris, Alberto Satta
Social insects have evolved colony behavioral, physiological and organizational adaptations (social immunity) to reduce the risks of parasitization and/or disease transmission. The collection of resin from various plants and its use in the hive as propolis, is a clear example of behavioral defense. For Apis mellifera, an increased propolis content in the hive may correspond to variations in the microbial load of the colony and to a down-regulation of an individual bee's immune response. However, many aspects of such antimicrobial mechanism still need to be clarified...
August 10, 2017: Insect Science
https://www.readbyqxmd.com/read/28793915/the-functional-property-of-royal-jelly-10-hydroxy-2-decenoic-acid-as-a-melanogenesis-inhibitor
#9
Chi-Chung Peng, Hui-Tzu Sun, I-Ping Lin, Ping-Chung Kuo, Jen-Chieh Li
BACKGROUND: It has been reported that royal jelly would reduce melanin synthesis and inhibit the expression of melanogensis related proteins and genes. In this study, we evaluate the anti-melanogenic and depigmenting activity of 10-hydroxy-2-decenoic acid (10-HDA) from royal jelly of Apis mellifera. METHODS: In this study, we assesses the 10-HDA whitening activity in comparison with the changes in the intracellular tyrosinase activity, melanin content and melanin production related protein levles in B16F1 melanoma cells after treating with 10-HDA...
August 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28783129/effects-of-oxalic-acid-on-apis-mellifera-hymenoptera-apidae
#10
Eva Rademacher, Marika Harz, Saskia Schneider
Abstract: Oxalic acid dihydrate is used to treat varroosis of Apis mellifera. This study investigates lethal and sublethal effects of oxalic acid dihydrate on individually treated honeybees kept in cages under laboratory conditions as well as the distribution in the colony. After oral application, bee mortality occurred at relatively low concentrations (No Observed Adverse Effect Level (NOAEL) 50 µg/bee; Lowest Observed Adverse Effect Level (LOAEL) 75 µg/bee) compared to the dermal treatment (NOAEL 212.5 µg/bee; LOAEL 250 µg/bee)...
August 7, 2017: Insects
https://www.readbyqxmd.com/read/28761114/absence-of-deformed-wing-virus-and-varroa-destructor-in-australia-provides-unique-perspectives-on-honeybee-viral-landscapes-and-colony-losses
#11
John M K Roberts, Denis L Anderson, Peter A Durr
Honeybee (Apis mellifera) health is threatened globally by the complex interaction of multiple stressors, including the parasitic mite Varroa destructor and a number of pathogenic viruses. Australia provides a unique opportunity to study this pathogenic viral landscape in the absence of V. destructor. We analysed 1,240A. mellifera colonies across Australia by reverse transcription-polymerase chain reaction (RT-PCR) and next-generation sequencing (NGS). Five viruses were prevalent: black queen cell virus (BQCV), sacbrood virus (SBV), Israeli acute paralysis virus (IAPV) and the Lake Sinai viruses (LSV1 and LSV2), of which the latter three were detected for the first time in Australia...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28755848/the-use-of-brazilian-propolis-for-discovery-and-development-of-novel-anti-inflammatory-drugs
#12
REVIEW
Marcelo Franchin, Irlan Almeida Freires, Josy Goldoni Lazarini, Bruno Dias Nani, Marcos Guilherme da Cunha, David Fernando Colón, Severino Matias de Alencar, Pedro Luiz Rosalen
Anti-Inflammatory drugs have been routinely used in the management of acute and chronic inflammatory conditions. Nevertheless, their undesirable side and adverse effects have encouraged the development of more selective, tolerable and efficacious drugs able to modulate the inflammatory process through distinct mechanisms than those of drugs currently available in the market, for instance, inhibition of leukocyte recruitment (chemotaxis, rolling, adhesion and transmigration). Natural products, including Brazilian propolis, have been considered a rich source of anti-inflammatory molecules due to a very complex phytochemical diversity...
June 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28755688/differential-physiological-effects-of-neonicotinoid-insecticides-on-honey-bees-a-comparison-between-apis-mellifera-and-apis-cerana
#13
Zhiguo Li, Meng Li, Jingfang He, Xiaomeng Zhao, Veeranan Chaimanee, Wei-Fone Huang, Hongyi Nie, Yazhou Zhao, Songkun Su
Acute toxicities (LD50s) of imidacloprid and clothianidin to Apis mellifera and A. cerana were investigated. Changing patterns of immune-related gene expressions and the activities of four enzymes between the two bee species were compared and analyzed after exposure to sublethal doses of insecticides. Results indicated that A. cerana was more sensitive to imidacloprid and clothianidin than A. mellifera. The acute oral LD50 values of imidacloprid and clothianidin for A. mellifera were 8.6 and 2.0ng/bee, respectively, whereas the corresponding values for A...
August 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/28751408/draft-genome-sequences-of-saccharibacter-sp-strains-3-a-1-and-m18-isolated-from-honey-and-a-honey-bee-apis-mellifera-stomach
#14
Alexandra Veress, Tímea Wilk, János Kiss, Ferenc Olasz, Péter P Papp
The annotated draft genome sequences of two recent Saccharibacter sp. strains isolated from honey and a honey bee stomach in 2014 are reported here. Currently, two Saccharibacter whole-genome sequences are available in databases; thus, the sequences of our new isolates will contribute to a better understanding of Saccharibacter genomes.
July 27, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28748336/continuous-release-of-oregano-oil-effectively-and-safely-controls-varroa-destructor-infestations-in-honey-bee-colonies-in-a-northern-climate
#15
Qodratollah Sabahi, Hanan Gashout, Paul G Kelly, Ernesto Guzman-Novoa
The ectoparasitic mite Varroa destructor is responsible for the death of millions of honey bee (Apis mellifera) colonies worldwide. Testing potential miticide compounds with different delivery methods that effectively control V. destructor and have low toxicity for honey bees is crucial to manage this parasite in hives. We determined the varroacide efficacy of three natural compounds delivered to hives with three application methods over a 4-week period. Oxalic acid in a sucrose solution was applied impregnated in cardboard (T1)...
July 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28748329/impact-of-thiamethoxam-on-honey-bee-queen-apis-mellifera-carnica-reproductive-morphology-and-physiology
#16
Ivana Tlak Gajger, Martina Sakač, Aleš Gregorc
High honey bee losses around the world have been linked in part by the regular use of neonicotinoids in agriculture. In light of the current situation, the aim of this study was to investigate the effects of thiamethoxam on the development of the reproductive system and physiology in the honey bee queen. Two experimental groups of honey bee queen larvae were treated with thiamethoxam during artificial rearing, applied via artificial feed in two cycles. In the first rearing cycle, honey bee larvae received a single treatment dose (4...
July 26, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28743669/relative-abundance-of-deformed-wing-virus-varroa-destructor-virus-1-and-their-recombinants-in-honey-bees-apis-mellifera-assessed-by-kmer-analysis-of-public-rna-seq-data
#17
Robert Scott Cornman
Deformed wing virus (DWV) is a major pathogen of concern to apiculture, and recent reports have indicated the local predominance and potential virulence of recombinants between DWV and a related virus, Varroa destructor virus 1 (VDV). However, little is known about the frequency and titer of VDV and recombinants relative to DWV generally. In this study, I assessed the relative occurrence and titer of DWV and VDV in public RNA-seq accessions of honey bee using a rapid, kmer-based approach. Three recombinant types were detectable graphically and corroborated by de novo assembly...
July 23, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28740210/elucidating-the-mechanisms-underlying-the-beneficial-health-effects-of-dietary-pollen-on-honey-bees-apis-mellifera-infested-by-varroa-mite-ectoparasites
#18
Desiderato Annoscia, Virginia Zanni, David Galbraith, Anna Quirici, Christina Grozinger, Renzo Bortolomeazzi, Francesco Nazzi
Parasites and pathogens of the honey bee (Apis mellifera) are key factors underlying colony losses, which are threatening the beekeeping industry and agriculture as a whole. To control the spread and development of pathogen infections within the colony, honey bees use plant resins with antibiotic activity, but little is known about the properties of other substances, that are mainly used as a foodstuff, for controlling possible diseases both at the individual and colony level. In this study, we tested the hypothesis that pollen is beneficial for honey bees challenged with the parasitic mite Varroa destructor associated to the Deformed Wing Virus...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28739022/component-resolved-diagnosis-in-hymenoptera-allergy
#19
REVIEW
D Antolín-Amérigo, B Ruiz-León, E Boni, T Alfaya-Arias, M Álvarez-Mon, J Barbarroja-Escudero, D González-de-Olano, C Moreno-Aguilar, M Rodríguez-Rodríguez, M J Sánchez-González, L Sánchez-Morillas, A Vega-Castro
Component-resolved diagnosis based on the use of well-defined, properly characterised and purified natural and recombinant allergens constitutes a new approach in the diagnosis of venom allergy. Prospective readers may benefit from an up-to-date review on the allergens. The best characterised venom is that of Apis mellifera, whose main allergens are phospholipase A2 (Api m1), hyaluronidase (Api m2) and melittin (Api m4). Additionally, in recent years, new allergens of Vespula vulgaris have been identified and include phospholipase A1 (Ves v1), hyaluronidase (Ves v2) and antigen 5 (Ves v5)...
July 21, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28736933/disruption-of-oxidative-balance-in-the-gut-of-the%C3%A2-western-honeybee-apis-mellifera-exposed-to-the-intracellular-parasite-nosema-ceranae-and-to-the-insecticide-fipronil
#20
Laurianne Paris, Michaël Roussel, Bruno Pereira, Frédéric Delbac, Marie Diogon
The causes underlying the increased mortality of honeybee colonies remain unclear and may involve multiple stressors acting together, including both pathogens and pesticides. Previous studies suggested that infection by the gut parasite Nosema ceranae combined with chronic exposure to sublethal doses of the insecticide fipronil generated an increase in oxidative stress in the midgut of honeybees. To explore the impact of these two stressors on oxidative balance, we experimentally infected bees with N. ceranae and/or chronically exposed to fipronil at low doses for 22 days, and we measured soluble reactive oxygen species (ROS) and ROS damage by quantifying both protein and lipid oxidation in the midgut...
July 24, 2017: Microbial Biotechnology
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