Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| preference of cabbage white butterflies and honey bees for nectar that contains amino acids. | amino acids occur in most floral nectars but their role in pollinator attraction is relatively unstudied. nectars of butterfly-pollinated flower tend to have higher concentrations of amino acids than do flowers pollinated by bees and many other animals, suggesting that amino acids are important attractants of butterflies to flowers. in order to determine whether amino acids are important in attracting butterflies and bees, we tested the preference of cabbage white butterflies (pieris rapae) and ... | 1990 | 28312774 |
| trap-nesting bees and wasps colonizing set-aside fields: succession and body size, management by cutting and sowing. | trap-nesting bees and wasps (hymenoptera aculeata) colonizing crop and fallow fields in an agricultural landscape were studied using 20 sown fields (pea, barley, rye, clover-grass mixtures, phacelia tanacetifolia) and 20 fields with naturally developed vegetation (1- and 2-year old fields, both mown and unmown, and old meadows). fourteen species of apoidea, 4 of sphecidae, 1 of eumenidae and 4 of parasitoids were reared from reed nests exposed in these 40 fields of 10 field-types. fields with na ... | 1994 | 28312790 |
| honeybees mark with scent and reject recently visited flowers. | experimental evidence is reported for flower-marking by honeybees (apis mellifera ligustica) while they were foraging on an artificial patch of flowers yielding a continuous and equal flow of sucrose solution. honeybees marked with scent and rejected all recently visited and nectar-depleted flowers. the short fade-out time of this scent allowed discrimination of flowers that temporarily provided no food. the repellent nature of this scent mark was demonstrated by the use of an air extractor conn ... | 1992 | 28313402 |
| volatiles of two chemotypes of majorana syriaca l. (labiatae) as olfactory cues for the honeybee. | a study of olfactory discrimination by honeybee has been set up in order to understand the role of volatiles of the aromatic plant majorana syriaca in attracting pollinating insects. the honeybee's response to volatiles from leaves and inflorescences of two m. syriaca chemotypes, which differ in the thymol carvacrol ratio of their volatiles, was tested using a bioessay method based on associative conditioning and recruitement techniques. behavioural data show that a honeybee identifies and react ... | 1989 | 28313476 |
| the relationship between population size, amount of brood, and individual foraging behaviour in the honey bee, apis mellifera l. | this study experimentally examines the relationship between colony state and the behaviour of individual pollen and nectar foragers in the honey bee, apis mellifera l. in the first experiment we test the prediction that individual pollen foragers from colonies with higher brood quantities should exhibit a greater work effort for pollen resources than individual pollen foragers from colonies with low brood quantities. eight colonies were assigned into two treatment groups; high brood colonies wer ... | 1994 | 28313936 |
| effects of recent experience on foraging decisions by bumble bees. | the temporal and spatial scales employed by foraging bees in sampling their environment and making foraging decisions should depend both on the limits of bumble bee memory and on the spatial and temporal pattern of rewards in the habitat. we analyzed data from previous experiments to determine how recent foraging experience by bumble bees affects their flight distances to subsequent flowers. a single visit to a flower as sufficient to affect the flight distance to the next flower. however, longe ... | 1993 | 28314038 |
| octopamine and tyramine modulate the thermoregulatory fanning response in honey bees (apis mellifera l.). | biogenic amines regulate the proximate mechanisms underlying most behavior, including those that contribute to the overall success of complex societies. for honey bees, one critical set of behaviors contributing to the welfare of a colony is involved with nest thermoregulation. worker honeybees cool the colony by performing a fanning behavior, the expression of which is largely influenced by response thresholds modulated by the social environment. here, we examined how changes in biogenic amines ... | 2017 | 28314750 |
| sublethal doses of neonicotinoid imidacloprid can interact with honey bee chemosensory protein 1 (csp1) and inhibit its function. | as a frequently used neonicotinoid insecticide, imidacloprid can impair the chemoreceptive behavior of honey bees even at sublethal doses, while the physiochemical mechanism has not been further revealed. here, multiple fluorescence spectra, thermodynamic method, and molecular docking were used to study the interaction and the functional inhibition of imidacloprid to the recombinant csp1 protein in asian honey bee, apis cerana. the results showed that the fluorescence intensity (λem = 332 nm) of ... | 2017 | 28315331 |
| is floral morphology a good predictor of floral visitors to antirrhineae (snapdragons and relatives)? | the association between plants and flower visitors has been historically proposed as a main factor driving the evolutionary change of both flower and pollinator phenotypes. the considerable diversity in floral morphology within the tribe antirrhineae has been traditionally related to pollinator types. we used empirical data on the flower visitors from 59 antirrhineae taxa from the literature and our own field surveys, which provide an opportunity to test whether flower phenotypes are reliable pr ... | 2017 | 28316136 |
| a novel melittin nano-liposome exerted excellent anti-hepatocellular carcinoma efficacy with better biological safety. | melittin is the main effective component of bee venom and has extensive biological functions; however, serious side effects have restricted its clinical application. preclinical and clinical studies showed that the main adverse events were allergic reaction and pain at the administration site. to decrease the toxicity, we prepared melittin nano-liposomes by encapsulating melittin with poloxamer 188 and explored the inhibitory activities on liver cancer together with biological safety. here, we s ... | 2017 | 28320480 |
| developmental and loco-like effects of a swainsonine-induced inhibition of α-mannosidase in the honey bee, apis mellifera. | deficiencies in lysosomal a-mannosidase (lam) activity in animals, caused either by mutations or by consuming toxic alkaloids, lead to severe phenotypic and behavioural consequences. yet, epialleles adversely affecting lam expression exist in the honey bee population suggesting that they might be beneficial in certain contexts and cannot be eliminated by natural selection. | 2017 | 28321369 |
| c-type allatostatins mimic stress-related effects of alarm pheromone on honey bee learning and memory recall. | as honey bee populations worldwide are declining there is an urgent need for a deeper understanding of stress reactivity in these important insects. our data indicate that stress responses in bees (apis mellifera l.) may be mediated by neuropeptides identified, on the basis of sequence similarities, as allatostatins (asta, astc and astcc). effects of allatostatin injection are compared with stress-related changes in learning performance induced by the honeybee alarm pheromone, isopentylacetate ( ... | 2017 | 28323874 |
| identification of relevant non-target organisms exposed to weevil-resistant bt sweetpotato in uganda. | assessment of the impact of transgenic crops on non-target organisms (nto) is a prerequisite to their release into the target environment for commercial use. transgenic sweetpotato varieties expressing cry proteins (bt sweetpotato) are under development to provide effective protection against sweetpotato weevils (coleoptera) which cause severe economic losses in sub-saharan africa. like any other pest control technologies, genetically engineered crops expressing insecticidal proteins need to be ... | 2014 | 28324435 |
| neuroscience: intelligence in the honeybee mushroom body. | intelligence, in most people's conception, involves combining pieces of evidence to reach non-obvious conclusions. a recent theoretical study shows that intelligence-like brain functions can emerge from simple neural circuits, in this case the honeybee mushroom body. | 2017 | 28324737 |
| stonebrood and chalkbrood in apis mellifera causing fungi: in vitro sensitivity to some essential oils. | aim of the present study was to evaluate the in vitro antimycotic activity of 17 chemically defined essential oils (eos) both alone and as a mixture, against agents responsible for stonebrood caused by aspergillus flavus, and chalkbrood caused by ascosphaera apis in european honeybees. cinnamomum zeylanicum yielded the lowest mic value against a. flavus, but was not effective against a. apis, while litsea cubeba and pelargonium graveolens appeared to be effective against all checked fungi. asper ... | 2017 | 28326846 |
| draft genome of the honey bee ectoparasitic mite, tropilaelaps mercedesae, is shaped by the parasitic life history. | the number of managed honey bee colonies has considerably decreased in many developed countries in recent years and ectoparasitic mites are considered as major threats to honey bee colonies and health. however, their general biology remains poorly understood. | 2017 | 28327890 |
| behavioral, transcriptomic and epigenetic responses to social challenge in honey bees. | understanding how social experiences are represented in the brain and shape future responses is a major challenge in the study of behavior. we addressed this problem by studying behavioral, transcriptomic and epigenetic responses to intrusion in honey bees. previous research showed that initial exposure to an intruder provokes an immediate attack; we now show that this also leads to longer-term changes in behavior in the response to a second intruder, with increases in the probability of respond ... | 2017 | 28328153 |
| linking magnetite in the abdomen of honey bees to a magnetoreceptive function. | previous studies of magnetoreception in honey bees, apis mellifera, focused on the identification of magnetic material, its formation, the location of the receptor and potential underlying sensory mechanisms, but never directly linked magnetic material to a magnetoreceptive function. in our study, we demonstrate that ferromagnetic material consistent with magnetite plays an integral role in the bees' magnetoreceptor. subjecting lyophilized and pelletized bee tagmata to analyses by a superconduct ... | 2017 | 28330921 |
| the genus amegilla (hymenoptera, apidae, anthophorini) in australia: a revision of the subgenera notomegilla and zonamegilla. | the australian bees in the subgenera notomegilla and zonamegilla of the genus amegilla are revised. commonly in australia the species in these subgenera are called blue-banded bees, although not all species have blue bands. a phylogeny based on mitochondrial cytochrome oxidase 1 sequence data was used to delineate the species and a set of morphological criteria was developed for species identification. strong support was obtained for separating the australian species into the three subgenera pre ... | 2017 | 28331394 |
| taxonomy of the african large carpenter bees of the genus xylocopa latreille, 1802, subgenus xenoxylocopa hurd & moure, 1963 (hymenoptera, apidae). | the taxonomy of the genus xylocopa latreille, 1802, subgenus xenoxylocopa hurd & moure, 1963, is reviewed. there is a single valid species in this subgenus, xylocopa (xenoxylocopa) inconstans smith, 1874, which is widely distributed throughout sub-saharan africa, from senegal to ethiopia and south to northern republic of south africa. synonyms of xylocopa inconstans include xylocopa abyssinica radoszkowski, 1899, proposed for a male specimen from ethiopia, as well as three names proposed for fem ... | 2017 | 28331398 |
| a clinical trial protocol to treat massive africanized honeybee (apis mellifera) attack with a new apilic antivenom. | envenomation caused by multiple stings from africanized honeybees apis mellifera constitutes a public health problem in the americas. in 2015, the brazilian ministry of health reported 13,597 accidents (incidence of seven cases per 100,000 inhabitants) with 39 deaths (lethality of 0.25%). the toxins present in the venom, which include melittin and phospholipase a2, cause lesions in diverse organs and systems that may be fatal. as there has been no specific treatment to date, management has been ... | 2017 | 28331487 |
| synergistic effects of floral phytochemicals against a bumble bee parasite. | floral landscapes comprise diverse phytochemical combinations. individual phytochemicals in floral nectar and pollen can reduce infection in bees and directly inhibit trypanosome parasites. however, gut parasites of generalist pollinators, which consume nectar and pollen from many plant species, are exposed to phytochemical combinations. interactions between phytochemicals could augment or decrease effects of single compounds on parasites. using a matrix of 36 phytochemical treatment combination ... | 2017 | 28331591 |
| host sharing by the honey bee parasites lotmaria passim and nosema ceranae. | the trypanosome lotmaria passim and the microsporidian nosema ceranae are common parasites of the honey bee, apis mellifera, intestine, but the nature of interactions between them is unknown. here, we took advantage of naturally occurring infections and quantified infection loads of individual workers (n = 408) originating from three apiaries (four colonies per apiary) using pcr to test for interactions between these two parasites. for that purpose, we measured the frequency of single and double ... | 2017 | 28331592 |
| pollinator population size and pollination ecosystem service responses to enhancing floral and nesting resources. | modeling pollination ecosystem services requires a spatially explicit, process-based approach because they depend on both the behavioral responses of pollinators to the amount and spatial arrangement of habitat and on the within- and between-season dynamics of pollinator populations in response to land use. we describe a novel pollinator model predicting flower visitation rates by wild central-place foragers (e.g., nesting bees) in spatially explicit landscapes. the model goes beyond existing ap ... | 2017 | 28331597 |
| honey bee hairs and pollenkitt are essential for pollen capture and removal. | while insect grooming has been observed and documented for over one hundred years, we present the first quantitative analysis of this highly dynamic process. pollinating insects, like honey bees, purposely cover themselves with millions of pollen particles that, if left ungroomed, would make sensing and controlled flight difficult. how do they get clean? we show that the hairs on insect eyes are tuned to the pollen they collect; namely, the hairs are spaced so that they suspend pollen above the ... | 2017 | 28332480 |
| prevalence of honeybee viruses in different regions of china and argentina. | honeybees are threatened by various pathogens and parasites. more than 18 viruses have been described in honeybees and many of them have been detected in china and argentina. in china, both apis cerana and apis mellifera are raised. in argentina, beekeepers raise different ecotypes of a. mellifera: european honeybees (in both temperate and subtropical regions) and africanised honeybees (in subtropical areas only). a thorough study was carried out in both china and argentina to analyse the curren ... | 2016 | 28332647 |
| insecticide susceptibility in asian honey bees (apis cerana (hymenoptera: apidae)) and implications for wild honey bees in asia. | to conserve local biodiversity and ensure the provision of pollination services, it is essential to understand the impact of pesticides on wild honey bees. most studies that have investigated the effects of pesticides on honey bees have focused on the european honey bee (apis mellifera (hymenoptera: apidae)), which is commonly domesticated worldwide. however, the asian honey bee (apis cerana) is widely distributed throughout asia, and toxicity data are lacking for this species. this study aimed ... | 2017 | 28334064 |
| floral strips attract beneficial insects but do not enhance yield in cucumber fields. | natural enemies and pollinators require nutritional and habitat resources that are often not found in conventional agricultural fields. the addition of flowering plants within agroecosystems may provide the resources necessary to support beneficial insects at the local scale. we hypothesized that insect pollinator and natural enemy abundance would increase in cucumber (cucumis sativus) plots containing flower strips and that the effect would be greatest in the crop rows closest to the flower str ... | 2017 | 28334107 |
| managed bumble bees (bombus impatiens) (hymenoptera: apidae) caged with blueberry bushes at high density did not increase fruit set or fruit weight compared to open pollination. | highbush blueberry (vaccinium corymbosum l.) is an important crop grown throughout florida. currently, most blueberry growers use honey bees (apis mellifera l.) to provide pollination services for highbush blueberries even though bumble bees (bombus spp.) have been shown to be more efficient at pollinating blueberries on a per bee basis. in general, contribution of bumble bees to the pollination of commercial highbush blueberries in florida is unknown. herein, we determined if managed bumble bee ... | 2017 | 28334127 |
| ecology, life history, and management of tropilaelaps mites. | parasitic mites are the major threat to the western honey bee, apis mellifera l. for much of the world, varroa destructor anderson & trueman single-handedly inflicts unsurmountable problems to a. mellifera beekeeping. however, a. mellifera in asia is also faced with another genus of destructive parasitic mite, tropilaelaps. the life history of these two parasitic mites is very similar, and both have the same food requirements (i.e., hemolymph of developing brood). hence, parasitism by tropilaela ... | 2017 | 28334185 |
| population growth of varroa destructor (acari: varroidae) in colonies of russian and unselected honey bee (hymenoptera: apidae) stocks as related to numbers of foragers with mites. | varroa (varroa destructor anderson and trueman) is an external parasite of honey bees (apis mellifera l.) and a leading cause of colony losses worldwide. varroa populations can be controlled with miticides, but mite-resistant stocks such as the russian honey bee (rhb) also are available. russian honey bee and other mite-resistant stocks limit varroa population growth by affecting factors that contribute to mite reproduction. however, mite population growth is not entirely due to reproduction. nu ... | 2017 | 28334279 |
| the synergistic effects of almond protection fungicides on honey bee (hymenoptera: apidae) forager survival. | the honey bee (apis mellifera l.) contributes ∼$17 billion annually to the united states economy, primarily by pollinating major agricultural crops including almond, which is completely dependent on honey bee pollination for nut set. almond growers face constant challenges to crop productivity owing to pests and pathogens, which are often controlled with a multitude of agrochemicals. for example, fungicides are often applied in combination with other products to control fungal pathogens during a ... | 2017 | 28334292 |
| a bio-economic case study of canadian honey bee (hymenoptera: apidae) colonies: marker-assisted selection (mas) in queen breeding affects beekeeper profits. | over the past decade in north america and europe, winter losses of honey bee (hymenoptera: apidae) colonies have increased dramatically. scientific consensus attributes these losses to multifactorial causes including altered parasite and pathogen profiles, lack of proper nutrition due to agricultural monocultures, exposure to pesticides, management, and weather. one method to reduce colony loss and increase productivity is through selective breeding of queens to produce disease-, pathogen-, and ... | 2017 | 28334400 |
| pollinator identity and spatial isolation influence multiple paternity in an annual plant. | the occurrence and extent of multiple paternity is an important component of variation in plant mating dynamics. however, links between pollinator activity and multiple paternity are generally lacking, especially for plant species that attract functionally diverse floral visitors. in this study, we separated the influence of two functionally distinct floral visitors (hawkmoths and solitary bees) and characterized their impacts on multiple paternity in a self-incompatible, annual forb, oenothera ... | 2017 | 28334485 |
| erratum to: unity in defence: honeybee workers exhibit conserved molecular responses to diverse pathogens. | 2017 | 28335723 | |
| antioxidant and anti-tyrosinase activities of phenolic extracts from rape bee pollen and inhibitory melanogenesis by camp/mitf/tyr pathway in b16 mouse melanoma cells. | rape bee pollen possesses many nutritional and therapeutic properties because of its abundant nutrimental and bioactive components. in this study, free (fpe) and bound (bpe) phenolic extracts of rape bee pollen were obtained, phenolic and flavonoid contents were determined, and composition of phenolic acids was analyzed. in vitro antioxidant and anti-tyrosinase (tyr) activities of fpe and bpe were compared, and inhibitory melanogenesis of fpe was further evaluated. results showed fpe and bpe con ... | 2017 | 28337140 |
| direct interaction between caffeic acid phenethyl ester and human neutrophil elastase inhibits the growth and migration of panc-1 cells. | pancreatic ductal adenocarcinoma (pdac) is one of the most lethal malignant tumors of the digestive system, but the mechanisms of its development and progression are unclear. inflammation is thought to be fundamental to pancreatic cancer development and caffeic acid phenethyl ester (cape) is an active component of honey bee resin or propolis with anti-inflammatory and anticancer activities. we investigated the inhibitory effects of cape on cell growth and migration induced by human neutrophil el ... | 2017 | 28339071 |
| six years of instand e. v. sige proficiency testing: an evaluation of in vitro allergy diagnostics. | even though allergies are an important health issue, wide manufacturer-dependent differences in the detected amounts of allergen-specific ige (sige) have repeatedly been found. these discrepancies hinder diagnostics and research into clinically significant cutoff points for life-threatening symptoms. | 2017 | 28344920 |
| improvement of identification methods for honeybee specific lactic acid bacteria; future approaches. | honeybees face many parasites and pathogens and consequently rely on a diverse set of individual and group-level defenses to prevent disease. the crop microbiota of apis mellifera, composed of 13 lactic acid bacterial (lab) species within the genera lactobacillus and bifidobacterium, form a beneficial symbiotic relationship with each other and the honeybee to protect their niche and their host. possibly playing a vital role in honeybee health, it is important that these honeybee specific lactic ... | 2017 | 28346815 |
| melittin inhibits osteoclast formation through the downregulation of the rankl-rank signaling pathway and the inhibition of interleukin-1β in murine macrophages. | melittin is a major toxic component of bee venom (apis mellifera). it is not known whether melittin is involved in bone metabolism and osteoclastogenesis. the aim of this study was to determine the role of melittin in the regulation of osteoclastogenesis. in vitro osteoclastogenesis assays were performed using mouse raw 264.7 cells and bone marrow-derived macrophages (bmms) treated with receptor activator of nuclear factor-κb ligand (rankl) and macrophage colony-stimulating factor (m-csf). morph ... | 2017 | 28350111 |
| rna-sequence analysis of gene expression from honeybees (apis mellifera) infected with nosema ceranae. | honeybees (apis mellifera) are constantly subjected to many biotic stressors including parasites. this study examined honeybees infected with nosema ceranae (n. ceranae). n. ceranae infection increases the bees energy requirements and may contribute to their decreased survival. rna-seq was used to investigate gene expression at days 5, 10 and 15 post infection (p.i) with n. ceranae. the expression levels of genes, isoforms, alternative transcription start sites (tss) and differential promoter us ... | 2017 | 28350872 |
| food consumption and food exchange of caged honey bees using a radioactive labelled sugar solution. | we measured the distribution of sugar solution within groups of caged honey bees (apis mellifera) under standard in vitro laboratory conditions using 14c polyethylene glycol as a radioactive marker to analyze ingestion by individual bees after group feeding. we studied the impact of different experimental setups by varying the number of bees, age of bees, origin of bees, duration of experiment, the amount of available diet, and the influence of the neurotoxic pesticide imidacloprid in the diet o ... | 2017 | 28355267 |
| drag reduction in a natural high-frequency swinging micro-articulation: mouthparts of the honey bee. | worker-bee mouthparts consist of the glossa, the galeae and the vestigial labial palp, and it is these structures that enable bees to feed themselves. the articulation joints, 60∼70 µm in diameter, are present on the tip of the labial palp and are covered with olfactory sensilla, allowing movements between the segments. using a specially designed high-speed camera system, we discovered that the articulation joint could swing in the nectar at a frequency of ∼50 hz, considerably higher than the us ... | 2017 | 28355472 |
| biophysical characterization of the varroa destructor nav1 sodium channel and its affinity for τ-fluvalinate insecticide. | the decline of the western honeybee (apis mellifera) has been reported to be due to parasitism by varroa destructor mites and to colony collapse disorder in which these mites may be involved. in-hive chemicals such as τ-fluvalinate are being used to control vdestructor populations. this approach may lead to the chronic exposure of bees to this liposoluble chemical, which tends to accumulate in hives. we cloned a variant of the v. destructor sodium channel (vdnav1) and studied its biophysical cha ... | 2017 | 28356346 |
| the dynamic association between ovariole loss and sterility in adult honeybee workers. | in the social insects, ovary state (the presence or absence of mature oocytes) and ovary size (the number of ovarioles) are often used as proxies for the reproductive capacity of an individual worker. ovary size is assumed to be fixed post-eclosion whereas ovary state is demonstrably plastic post-eclosion. here, we show that in fact ovary size declines as honeybee workers age. this finding is robust across two honeybee species: apis mellifera and a. cerana the ovariole loss is likely to be due t ... | 2017 | 28356452 |
| melittin inhibits the invasion of mcf-7 cells by downregulating cd147 and mmp-9 expression. | tumor invasion and metastasis are the critical steps in determining the aggressive phenotype of human cancers. melittin, a major component of bee venom, has been reported to induce apoptosis in several cancer cells. however, the mechanisms of melittin involvement in cancer invasion and metastasis remain unclear. our previous study indicated that melittin inhibits cyclophilin a (cypa), a ubiquitously distributed peptidylprolyl cis-trans isomerase, in macrophage cells. in the present study, the tr ... | 2017 | 28356935 |
| a case series of bee sting keratopathy with different outcomes in malaysia. | we report three patients with corneal bee sting at our tertiary care center in a three-year period starting from 2014 to 2016. all patients sustained a bee sting injury to the cornea. all patients received early preoperative topical antibiotics, topical cycloplegic and intensive topical steroids. however, the timing of the initial presentation, the duration, and the location of the retained stinger differed in each case leading to different postsurgical outcomes. | 2017 | 28357167 |
| common antibiotic hurts bee survival. | 2017 | 28360316 | |
| condition-dependent virulence of slow bee paralysis virus in bombus terrestris: are the impacts of honeybee viruses in wild pollinators underestimated? | slow bee paralysis virus (sbpv)-previously considered an obligate honeybee disease-is now known to be prevalent in bumblebee species. sbpv is highly virulent in honeybees in association with varroa mites, but has been considered relatively benign otherwise. however, condition-dependent pathogens can appear asymptomatic under good, resource abundant conditions, and negative impacts on host fitness may only become apparent when under stressful or resource-limited conditions. we tested whether sbpv ... | 2017 | 28361244 |
| micrornas associated with caste determination and differentiation in a primitively eusocial insect. | in eusocial hymenoptera (ants, bees and wasps), queen and worker adult castes typically arise via environmental influences. a fundamental challenge is to understand how a single genome can thereby produce alternative phenotypes. a powerful approach is to compare the molecular basis of caste determination and differentiation along the evolutionary trajectory between primitively and advanced eusocial species, which have, respectively, relatively undifferentiated and strongly differentiated adult c ... | 2017 | 28361900 |
| effect of major royal jelly proteins on spatial memory in aged rats: metabolomics analysis in urine. | royal jelly (rj) produced by worker honeybees is the sole food for the queen bee throughout her life as well as the larvae of worker bees for the first 3 days after hatching. supplementation of rj in the diet has been shown to increase spatial memory in rodents. however, the key constituents in rj responsible for improvement of cognitive function are unknown. our objective was to determine if the major royal jelly proteins (mrjps) extracted from rj can improve the spatial memory of aged rats. th ... | 2017 | 28362493 |
| chitosan-propolis nanoparticle formulation demonstrates anti-bacterial activity against enterococcus faecalis biofilms. | propolis obtained from bee hives is a natural substance with antimicrobial properties. it is limited by its insolubility in aqueous solutions; hence ethanol and ethyl acetate extracts of malaysian propolis were prepared. both the extracts displayed antimicrobial and anti-biofilm properties against enterococcus faecalis, a common bacterium associated with hospital-acquired infections. high performance liquid chromatography (hplc) analysis of propolis revealed the presence of flavonoids like kaemp ... | 2017 | 28362873 |
| caffeic acid phenethyl ester protects against glucocorticoid-induced osteoporosis in vivo: impact on oxidative stress and rankl/opg signals. | glucocorticoid-induced osteoporosis (gio) is one of the most common causes of secondary osteoporosis. given that glucocorticoids are considered as a main component of the treatment protocols for a variety of inflammation and immune-mediated diseases besides its use as adjuvant to several chemotherapeutic agents, it is crucial to find ways to overcome this critical adverse effect. caffeic acid phenethyl ester (cape), which is a natural compound derived from honeybee propolis displayed promising a ... | 2017 | 28363435 |
| the effect of nest box distribution on sustainable propagation of osmia lignaria (hymenoptera: megachilidae) in commercial tart cherry orchards. | the blue orchard bee, osmia lignaria (say), is a solitary bee that is an excellent pollinator of tree fruit orchards. due to the annual rising costs of honey bee hive rentals, many orchardists are eager to develop management tools and practices to support o. lignaria as an alternative pollinator. establishing o. lignaria pollination as a sustainable industry requires careful consideration of both bee and orchard management. here, we test the effect of artificial nest box distribution on in-orcha ... | 2017 | 28365763 |
| ictv virus taxonomy profile: dicistroviridae. | dicistroviridae is a family of small non-enveloped viruses with monopartite, linear, positive-sense rna genomes of approximately 8-10 kb. viruses of all classified species infect arthropod hosts, with some having devastating economic consequences, such as acute bee paralysis virus in domesticated honeybees and taura syndrome virus in shrimp farming. conversely, the host specificity and other desirable traits exhibited by several members of this group make them potential natural enemies for inten ... | 2017 | 28366189 |
| longevity extension of worker honey bees (apis mellifera) by royal jelly: optimal dose and active ingredient. | in the western honey bee, apis mellifera, queens and workers have different longevity although they share the same genome. queens consume royal jelly (rj) as the main food throughout their life, including as adults, but workers only eat worker jelly when they are larvae less than 3 days old. in order to explore the effect of rj and the components affecting longevity of worker honey bees, we first determined the optimal dose for prolonging longevity of workers as 4% rj in 50% sucrose solution, an ... | 2017 | 28367370 |
| the search dynamics of recruited honey bees, apis mellifera ligustica spinola. | some variables in the recruitment process of honey bees were studied as they affected the distribution and success of the searching population in the field. the dance language and odor dependence hypotheses were contrasted and their predictions compared with the following observations. 1. recruits were attracted to the odors from the food which were carried by foragers and were dependent on these odors for success. 2. a monitoring of recruit densities in the field demonstrated an association of ... | 1973 | 28368757 |
| a novel interval type-2 fractional order fuzzy pid controller: design, performance evaluation, and its optimal time domain tuning. | in this paper, a novel concept of an interval type-2 fractional order fuzzy pid (it2fo-fpid) controller, which requires fractional order integrator and fractional order differentiator, is proposed. the incorporation of takagi-sugeno-kang (tsk) type interval type-2 fuzzy logic controller (it2flc) with fractional controller of pid-type is investigated for time response measure due to both unit step response and unit load disturbance. the resulting it2fo-fpid controller is examined on different del ... | 2017 | 28372800 |
| free-flying honeybees extrapolate relational size rules to sort successively visited artificial flowers in a realistic foraging situation. | learning and applying relational concepts to solve novel tasks is considered an indicator of cognitive-like ability. it requires the abstraction of relational concepts to different objects independent to the physical nature of the individual objects. recent research has revealed the honeybee's ability to rapidly learn and manipulate relations between visual stimuli such as 'same/different', 'above/below', or 'larger/smaller' despite having a miniature-sized brain. while honeybees can solve probl ... | 2017 | 28374206 |
| three years of banning neonicotinoid insecticides based on sub-lethal effects: can we expect to see effects on bees? | the 2013 eu ban of three neonicotinoids used in seed coating of pollinator attractive crops was put in place because of concern about declining wild pollinator populations and numbers of honeybee colonies. it was also concluded that there is an urgent need of good field data to fill knowledge gaps. in the meantime such data have been generated. based on recent literature we question the existence of recent pollinator declines and their possible link with the use of neonicotinoids. because of tem ... | 2017 | 28374565 |
| in search of evidence for the experience of pain in honeybees: a self-administration study. | despite their common use as model organisms in scientific experiments, pain and suffering in insects remains controversial and poorly understood. here we explore potential pain experience in honeybees (apis mellifera) by testing the self-administration of an analgesic drug. foragers were subjected to two different types of injuries: (i) a clip that applied continuous pressure to one leg and (ii) amputation of one tarsus. the bees were given a choice between two feeders, one offering pure sucrose ... | 2017 | 28374827 |
| infections of virulent and avirulent viruses differentially influenced the expression of dicer-1, ago-1, and micrornas in bombus terrestris. | the microrna (mirna) pathway is well established to be involved in host-pathogen interactions. as key insect pollinators, bees are suffering from widely spreading viruses, especially honeybees and bumblebees. in order to better understand bee-virus interaction, we comparatively analyzed the involvement of the bumblebee mirna pathway upon infection by two different viruses. in our setup, an avirulent infection is induced by slow bee paralysis virus (sbpv) and a virulent infection is induced by is ... | 2017 | 28374846 |
| antioxidant, cytotoxic, and toxic activities of propolis from two native bees in brazil: scaptotrigona depilis and melipona quadrifasciata anthidioides. | propolis is a natural mixture of compounds produced by various bee species, including stingless bees. this compound has been shown to exhibit antioxidant, antiproliferative, and antitumor activities. the present study aimed to determine the chemical constituents as well as the antioxidant, cytotoxic, and toxic activities of ethanol extracts of propolis obtained from the stingless bees scaptotrigona depilis and melipona quadrifasciata anthidioides, which are found in brazil. phytosterols, terpene ... | 2017 | 28377794 |
| genome-wide analysis of admixture and adaptation in the africanized honeybee. | genetic exchange by hybridization or admixture can make an important contribution to evolution, and introgression of favourable alleles can facilitate adaptation to new environments. a small number of honeybees (apis mellifera) with african ancestry were introduced to brazil ~60 years ago, which dispersed and hybridized with existing managed populations of european origin, quickly spreading across much of the americas in an example of a massive biological invasion. here we analyse whole genome s ... | 2017 | 28378497 |
| an insight into the antibiofilm properties of costa rican stingless bee honeys. | there is an increasing search for antibiofilm agents that either have specific activity against biofilms or may act in synergy with antimicrobials. our objective is to examine the the antibiofilm properties of stingless bee honeys. | 2017 | 28379095 |
| wildflower plantings do not compete with neighboring almond orchards for pollinator visits. | the engineering of flowering agricultural field borders has emerged as a research and policy priority to mitigate threats to pollinators. studies have, however, rarely addressed the potential that flowering field borders might compete with neighboring crops for pollinator visits if they both are in bloom at the same time, despite this being a concern expressed by growers. we evaluated how wildflower plantings added to orchard borders in a large (512 ha) commercial almond orchard affected honey b ... | 2017 | 28379320 |
| does passive sampling accurately reflect the bee (apoidea: anthophila) communities pollinating apple and sour cherry orchards? | during bloom of spring orchard crops, bees are the primary providers of pollination service. monitoring these insects for research projects is often done by timed observations or by direct aerial netting, but there has been increasing interest in blue vane traps as an efficient passive approach to collecting bees. over multiple spring seasons in michigan and pennsylvania, orchards were monitored for wild bees using timed netting from crop flowers and blue vane traps. this revealed a distinctly d ... | 2017 | 28379550 |
| medically-graded honey supplementation formula to preterm infants as a prebiotic: a randomized controlled trial. | to assess the effect of medically-graded enteral honey supplementation on the intestinal microbiota, immune response, and somatic growth of preterm infants. | 2017 | 28379925 |
| long-term follow-up of children after venom immunotherapy: low adherence to anaphylaxis guidelines. | data on the long-term outcome of children after specific venom immunotherapy (vit) are limited. therefore, we assessed sting recurrence and anaphylaxis relapse rates as well as adherence to anaphylaxis guidelines with regard to the availability of emergency equipment and education status. | 2017 | 28380475 |
| bee safe, a skill-building intervention to enhance cam health literacy: lessons learned. | the purpose is to describe a feasibility study of a skill-building intervention to enhance health literacy about complementary and alternative (cam) therapies among older rural adults and share lessons learned. a study was designed to examine the feasibility of an intervention to enhance cam health literacy. the theme was "bee safe" for be a wise user of cam, safety, amount, from where, and effect. modules were presented face to face and by webinar with older adults at a senior center in one sma ... | 2017 | 28381096 |
| abscisic acid enhances cold tolerance in honeybee larvae. | the natural composition of nutrients present in food is a key factor determining the immune function and stress responses in the honeybee (apis mellifera). we previously demonstrated that a supplement of abscisic acid (aba), a natural component of nectar, pollen, and honey, increases honeybee colony survival overwinter. here we further explored the role of aba in in vitro-reared larvae exposed to low temperatures. four-day-old larvae (l4) exposed to 25°c for 3 days showed lower survival rates an ... | 2017 | 28381619 |
| brazilian green propolis promotes weight loss and reduces fat accumulation in c57bl/6 mice fed a high-fat diet. | propolis is a bee product with various biological properties. c57bl/6 mice were fed a high-fat diet and treated with propolis for 14 weeks. body weight in mice treated with 2% propolis was less than that in control mice from 3 weeks after the start of treatment until 14 weeks except for the 7th week. mice treated with propolis showed significantly lower epididymal fat weight and subcutaneous fat weight. infiltration of epididymal fat by macrophages and t cells was reduced in the propolis group. ... | 2017 | 28381793 |
| visual acuity of the honey bee retina and the limits for feature detection. | visual abilities of the honey bee have been studied for more than 100 years, recently revealing unexpectedly sophisticated cognitive skills rivalling those of vertebrates. however, the physiological limits of the honey bee eye have been largely unaddressed and only studied in an unnatural, dark state. using a bright display and intracellular recordings, we here systematically investigated the angular sensitivity across the light adapted eye of honey bee foragers. angular sensitivity is a measure ... | 2017 | 28383025 |
| provenance establishment of stingless bee honey using multi-element analysis in combination with chemometrics techniques. | as consumption of stingless bee honey has been gaining popularity in many countries including malaysia, ability to identify accurately its geographical origin proves pertinent for investigating fraudulent activities for consumer protection. because a chemical signature can be location-specific, multi-element distribution patterns may prove useful for provenancing such product. using the inductively coupled-plasma optical emission spectrometer as well as principal component analysis (pca) and lin ... | 2017 | 28383137 |
| role of human action in the spread of honey bee (hymenoptera: apidae) pathogens. | the increased annual losses in european honey bee (apis mellifera) colonies in north america and some other countries is usually attributed to a range of factors including pathogens, poor nutrition, and insecticides. in this essay, i will argue that the global trade in honey bees and migratory beekeeping practices within countries has enabled pathogens to spread quickly. beekeepers' management strategies have also contributed to the spread of pathogens as well as the development of resistance to ... | 2017 | 28383702 |
| [ocular complications after honeybee sting therapy for a pterygium]. | 2017 | 28385271 | |
| a novel comprehensive learning artificial bee colony optimizer for dynamic optimization biological problems. | there are many dynamic optimization problems in the real world, whose convergence and searching ability is cautiously desired, obviously different from static optimization cases. this requires an optimization algorithm adaptively seek the changing optima over dynamic environments, instead of only finding the global optimal solution in the static environment. this paper proposes a novel comprehensive learning artificial bee colony optimizer (clabc) for optimization in dynamic environments problem ... | 2017 | 28386198 |
| dynamic population artificial bee colony algorithm for multi-objective optimal power flow. | this paper proposes a novel artificial bee colony algorithm with dynamic population (abc-dp), which synergizes the idea of extended life-cycle evolving model to balance the exploration and exploitation tradeoff. the proposed abc-dp is a more bee-colony-realistic model that the bee can reproduce and die dynamically throughout the foraging process and population size varies as the algorithm runs. abc-dp is then used for solving the optimal power flow (opf) problem in power systems that considers t ... | 2017 | 28386199 |
| immune system stimulation by the native gut microbiota of honey bees. | gut microbial communities can greatly affect host health by modulating the host's immune system. for many important insects, however, the relationship between the gut microbiota and immune function remains poorly understood. here, we test whether the gut microbial symbionts of the honey bee can induce expression of antimicrobial peptides (amps), a crucial component of insect innate immunity. we find that bees up-regulate gene expression of the amps apidaecin and hymenoptaecin in gut tissue when ... | 2017 | 28386455 |
| chemical ecology of stingless bees. | stingless bees (hymenoptera, apidae: meliponini) represent a highly diverse group of social bees confined to the world's tropics and subtropics. they show a striking diversity of structural and behavioral adaptations and are important pollinators of tropical plants. despite their diversity and functional importance, their ecology, and especially chemical ecology, has received relatively little attention, particularly compared to their relative the honeybee, apis mellifera. here, i review various ... | 2017 | 28386800 |
| diploid male production results in queen death in the stingless bee scaptotrigona depilis. | as in most hymenoptera, the eusocial stingless bees (meliponini) have a complementary sex determination (csd) system. when a queen makes a "matched mating" with a male that shares a csd allele with her, half of their diploid offspring are diploid males rather than females. matched mating imposes a cost, since diploid male production reduces the colony workforce. hence, adaptations preventing the occurrence or attenuating its effects are likely to arise. here we provide clear evidence that in the ... | 2017 | 28386801 |
| odorant cues linked to social immunity induce lateralized antenna stimulation in honey bees (apis mellifera l.). | hygienic behaviour (hb) is a social immunity trait in honey bees (apis mellifera l.) whereby workers detect, uncap and remove unhealthy brood, improving disease resistance in the colony. this is clearly economically valuable; however, the molecular mechanism behind it is not well understood. the freeze-killed brood (fkb) assay is the conventional method of hb selection, so we compared odour profiles of fkb and live brood to find candidate hb-inducing odours. surprisingly, we found that significa ... | 2017 | 28387332 |
| effects of bacillus thuringiensis strains virulent to varroa destructor on larvae and adults of apis mellifera. | the sublethal effects of two strains of bacillus thuringiensis, which were virulent in vitro to varroa destructor, were measured on apis mellifera. the effects of five concentrations of total protein (1, 5, 25, 50 and 100μg/ml) from the ea3 and ea26.1 strains on larval and adult honey bees were evaluated for two and seven days under laboratory conditions. based on the concentrations evaluated, total protein from the two strains did not affect the development of larvae, the syrup consumption, loc ... | 2017 | 28388479 |
| nosema ceranae in south american native stingless bees and social wasp. | besides the incipient research effort, the role of parasites as drivers of the reduction affecting pollinator populations is mostly unknown. given the worldwide extension of the beekeeping practice and the diversity of pathogens affecting apis mellifera populations, honey bee colonies are a certain source of parasite dispersion to other species. here, we communicate the detection of the microsporidium nosema ceranae, a relatively new parasite of honey bees, in stingless bees (meliponini) and th ... | 2017 | 28389730 |
| the impact of gc bias on phylogenetic accuracy using targeted enrichment phylogenomic data. | the field of sequence based phylogenetic analyses is currently being transformed by novel hybrid-based targeted enrichment methods, such as the use of ultraconserved elements (uces). rather than analyzing relationships among organisms using a small number of genes, these methods now allow us to evaluate relationships with many hundreds to thousands of individual gene loci. however, the inclusion of thousands of loci does not necessarily overcome the long-standing challenge of incongruence among ... | 2017 | 28390323 |
| phylogenetic analysis and survey of apis cerana strain of sacbrood virus (acsbv) in taiwan suggests a recent introduction. | the sacbrood virus (sbv) is widely distributed in european honey bees, apis mellifera. acsbv, a distinct sbv strain in asian honey bees (a. cerana) causes larva death before pupation and often depopulates colonies, leading to collapse. it is the most severe disease in a. cerana beekeeping. acsbv infects a. cerana in most natural habitats, yet occurrences were not reported in taiwan before 2015 and were not a concern for local beekeepers. however, in 2016, a. cerana beekeepers in central taiwan r ... | 2017 | 28390783 |
| replication of honey bee-associated rna viruses across multiple bee species in apple orchards of georgia, germany and kyrgyzstan. | the essential ecosystem service of pollination is provided largely by insects, which are considered threatened by diverse biotic and abiotic global change pressures. rna viruses are one such pressure, and have risen in prominence as a major threat for honey bees (apis mellifera) and global apiculture, as well as a risk factor for other bee species through pathogen spill-over between managed honey bees and sympatric wild pollinator communities. yet despite their potential role in global bee decli ... | 2017 | 28392285 |
| oldest varroa tolerant honey bee population provides insight into the origins of the global decline of honey bees. | the ecto-parasitic mite varroa destructor has transformed the previously inconsequential deformed wing virus (dwv) into the most important honey bee viral pathogen responsible for the death of millions of colonies worldwide. naturally, dwv persists as a low level covert infection transmitted between nest-mates. it has long been speculated that varroa via immunosuppression of the bees, activate a covert infection into an overt one. here we show that despite varroa feeding on a population of 20-40 ... | 2017 | 28393875 |
| investigation of span-chordwise bending anisotropy of honeybee forewings. | in this study, the spanwise and chordwise bending stiffness ei of honeybee forewings were measured by a cantilevered bending test. the interesting test results indicate that the spanwise ei of the forewing is two orders of magnitude larger than the chordwise ei three structural aspects result in this span-chordwise bending anisotropy: the distribution of resilin patches, the corrugation along the span and the leading edge vein of the venation. it was found that flexion lines formed by resilin pa ... | 2017 | 28396486 |
| the geometric framework for nutrition reveals interactions between protein and carbohydrate during larval growth in honey bees. | in holometabolous insects, larval nutrition affects adult body size, a life history trait with a profound influence on performance and fitness. individual nutritional components of larval diets are often complex and may interact with one another, necessitating the use of a geometric framework for elucidating nutritional effects. in the honey bee, apis mellifera, nurse bees provision food to developing larvae, directly moderating growth rates and caste development. however, the eusocial nature of ... | 2017 | 28396492 |
| total and honeybee venom-specific serum igg4 and ige in beekeepers. | 2017 | 28398208 | |
| agricultural landscape and pesticide effects on honey bee (hymenoptera: apidae) biological traits. | sixteen honey bee (apis mellifera l.) colonies were placed in four different agricultural landscapes to study the effects of agricultural landscape and exposure to pesticides on honey bee health. colonies were located in three different agricultural areas with varying levels of agricultural intensity (ag areas) and one nonagricultural area (nag area). colonies were monitored for their performance and productivity for one year by measuring colony weight changes, brood production, and colony therm ... | 2017 | 28398581 |