keyword
MENU ▼
Read by QxMD icon Read
search

Honeybee

keyword
https://www.readbyqxmd.com/read/29784072/high-throughput-quantitation-of-neonicotinoids-in-lyophilized-surface-water-by-lc-apci-ms-ms
#1
Lucas M Morrison, Justin B Renaud, Lyne Sabourin, Mark W Sumarah, Ken K C Yeung, David R Lapen
Background : Neonicotinoids are among the most widely used insecticides. Recently, there has been concern associated with unintended adverse effects on honeybees and aquatic invertebrates at low parts-per-trillion levels. Objective : There is a need for LC-MS/MS methods that are capable of high-throughput measurements of the most widely used neonicotinoids at environmentally relevant concentrations in surface water. Methods : This method allows for quantitation of acetamiprid, clothianidin, imidacloprid, dinotefuran, nitenpyram, thiacloprid, and thiamethoxam in surface water...
May 21, 2018: Journal of AOAC International
https://www.readbyqxmd.com/read/29782951/clinical-consequences-of-toxic-envenomations-by-hymenoptera
#2
Justin O Schmidt
Many familiar Hymenoptera are brightly colored and can sting painfully-thus, their threat and clinical importance may be exaggerated. Most stinging insects only sting to defend themselves or their colonies from predators. The clinical nature of Hymenoptera envenomations contrasts that of other venomous animals, including other arthropods, primarily because allergic reaction, not direct intoxication, is the usual main concern. This review focuses mainly on the clinical features of direct toxicity to Hymenoptera envenomations, which can induce a high incidence of acute renal failure, liver failure, multiple organ failures, and death...
May 18, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29775065/maldi-imaging-analysis-of-neuropeptides-in-africanized-honeybee-apis-mellifera-brain-effect-of-aggressiveness
#3
Marcel Pratavieira, Anally Ribeiro da Silva Menegasso, Franciele Grego Esteves, Kenny Umino Sato, Osmar Malaspina, Mario Sérgio Palma
The aggressiveness in honeybees seems to be regulated by multiple genes, under the influence of different factors, such as polyethism of workers, environmental factors, and response to alarm pheromones, creating a series of behavioral responses. It is suspected that neuropeptides seem to be involved with the regulation of the aggressive behavior. The role of allatostatin and tachykinin-related neuropeptides in honeybee brain during the aggressive behavior is unknown; thus, worker honeybees were stimulated to attack and to sting leather targets hanged in front of the colonies...
May 18, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29765357/the-wisdom-of-honeybee-defenses-against-environmental-stresses
#4
REVIEW
Guilin Li, Hang Zhao, Zhenguo Liu, Hongfang Wang, Baohua Xu, Xingqi Guo
As one of the predominant pollinator, honeybees provide important ecosystem service to crops and wild plants, and generate great economic benefit for humans. Unfortunately, there is clear evidence of recent catastrophic honeybee colony failure in some areas, resulting in markedly negative environmental and economic effects. It has been demonstrated that various environmental stresses, including both abiotic and biotic stresses, functioning singly or synergistically, are the potential drivers of colony collapse...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29761912/proteinase-pattern-of-honeybee-prepupae-from-healthy-and-american-foulbrood-infected-bees-investigated-by-zymography-the-numbered-spots-figure-4-were-excised-from-the-gels-and-they-were-individually-transferred-to-a-1-5-ml-microcentrifuge-tube-spots-were-destained
#5
Proteinase pattern of honeybee prepupae from healthy and American Foulbrood infected bees investigated by zymography: The numbered spots (figure 4) were excised from the gels and they were individually transferred to a 1.5 mL microcentrifuge tube. Spots were destained and proteins digested as reported by Dani et al. 40. Each peptide mixture was submitted to capillary-LC-μESI-MS/MS analysis on an Ultimate 3000 HPLC (Dionex, San Donato Milanese, Milano, Italy) coupled to a LTQ Orbitrap mass spectrometer (Thermo Fisher, Bremen, Germany). Peptides were concentrated on a precolumn cartridge PepMap100 C18 (300 μm i.d. × 5 mm, 5 μm, 100 Å, LC Packings Dionex) and then eluted on a homemade capillary column packed with Aeris Peptide XB-C18 phase (180 μm i.d. × 15 cm, 3.6 μm, 100 Å, Phenomenex, Torrance, CA, USA) at 1 μl/min. The loading mobile phases were: 0.1% TFA in H 2 O (phase A) and 0.1% TFA in CH 3 CN (phase B). The elution mobile phases composition was: H 2 O 0.1% formic acid/CH 3 CN 97/3 (phase A) and CH 3 CN 0.1% formic acid/ H 2 O 97/3 (phase B). The elution program was: 0 min, 4% B; 10 min, 40% B; 30 min, 65% B; 35 min, 65% B; 36 min, 90% B; 40 min, 90% B; 41 min, 4%B; 60 min, 4% B. Mass spectra were acquired in positive ion mode, setting the spray voltage at 1.8 kV, the capillary voltage and temperature respectively at 45 V and 200°C, and the tube lens at 130 V. Data were acquired in data-dependent mode with dynamic exclusion enabled (repeat count 2, repeat duration 15 s, exclusion duration 30 s); survey MS scans were recorded in the Orbitrap analyzer in the mass range 300-2000 m/z at a 15,000 nominal resolution at m/z = 400; then up to three most intense ions in each full MS scan were fragmented (isolation width 3 m/z, normalized collision energy 30) and analyzed in the IT analyzer. Monocharged ions did not trigger MS/MS experiments.
Antonio Felicioli, Barbara Turchi, Filippo Fratini, Matteo Giusti, Roberta Nuvoloni, Francesca Romana Dani, Simona Sagona
American foulbrood disease (AFB) is the main devastating disease that affects honeybees' brood, caused by Paenibacillus larvae. The trend of the research on AFB has addressed the mechanisms by which P. larvae bacteria kill honeybee larvae. Since prepupae could react to the infection of AFB by increasing protease synthesis, the aim of this work was to compare protease activity in worker prepupae belonging to healthy colonies and to colonies affected by AFB. This investigation was performed by zymography. In gel, proteolytic activity was observed in prepupae extracts belonging to the healthy colonies...
May 15, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29758240/imidacloprid-intensifies-its-impact-on-honeybee-and-bumblebee-cellular-immune-response-when-challenged-with-lps-lippopolysacharide-of-escherichia-coli
#6
Louise Walderdorff, Philippe Laval-Gilly, Antoine Bonnefoy, Jaïro Falla-Angel
Insect hemocytes play an important role in insects' defense against environmental stressors as they are entirely dependent on their innate immune system for pathogen defense. In recent years a dramatic decline of pollinators has been reported in many countries. The drivers of this declines appear to be associated with pathogen infections like viruses, bacteria or fungi in combination with pesticide exposure. The aim of this study was thus to investigate the impact of imidacloprid, a neonicotinoid insecticide, on the cellular immune response of two pollinators (Apis mellifera and Bombus terrestris) during simultaneous immune activation with LPS (lipopolysaccharide) of Escherichia coli...
May 11, 2018: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29756169/vitellogenin-transcytosis-in-follicular-cells-of-the-honeybee-apis-mellifera-and-the-wasp-polistes-simillimus
#7
Virgínia Teles Dohanik, Wagner Gonzaga Gonçalves, Leandro Licursi Oliveira, José Cola Zanuncio, José Eduardo Serrão
Vitellogenin receptor (VgR) is a low-density lipoprotein receptor responsible for the mediated endocytosis of vitellogenin (Vg) during egg formation in insects. The maturing oocyte is enveloped by a follicular epithelium, which has large intercellular spaces during Vg accumulation (patency). However, Vg has been reported in the cytoplasm of follicular cells, indicating that there may be a transcellular route for its transport. This study verified the presence of VgR in the follicular cells of the ovaries of the honeybee Apis mellifera and the wasp Polistes simillimus in order to evaluate if Vg is transported via transcytosis in these insects...
May 13, 2018: Protoplasma
https://www.readbyqxmd.com/read/29754205/context-dependent-crypsis-a-prey-s-perspective-of-a-color-polymorphic-predator
#8
D Rodríguez-Morales, V Rico-Gray, J G García-Franco, H Ajuria-Ibarra, L T Hernández-Salazar, L E Robledo-Ospina, D Rao
Many animals use body coloration as a strategy to communicate with conspecifics, prey, and predators. Color is a trade-off for some species, since they should be visible to conspecifics but cryptic to predators and prey. Some flower-dwelling predators, such as crab spiders, are capable of choosing the color of flowers where they ambush flower visitors and pollinators. In order to avoid being captured, visitors evaluate flowers visually before landing. The crab spider Mecaphesa dubia is a polymorphic species (white/purple color morphs), which inhabits the flower heads of a dune plant, Palafoxia lindenii...
May 12, 2018: Die Naturwissenschaften
https://www.readbyqxmd.com/read/29750563/how-life-history-shapes-optimal-patterns-of-senescence-implications-from-individuals-to-societies
#9
Natalie J Lemanski, Nina H Fefferman
One evolutionary view of aging, the disposable soma theory, suggests that an organism's rate of senescence depends on the amount of energy invested in somatic maintenance. Since organisms have limited energy to allocate among growth, maintenance, and reproduction, the optimal amount of energy to invest in maintenance is influenced by the probability of death from extrinsic causes and the effect of somatic investment on survival. In eusocial animals, the disposable soma theory can be used to explain colonies' energy investment in the longevity of workers, who act as the somatic elements of a superorganism...
June 2018: American Naturalist
https://www.readbyqxmd.com/read/29745171/-research-progress-of-the-interaction-between-apis-mellifera-and-varroa-destructor-mediated-by-pheromones
#10
Hao Hao Zhang, Zhen Guo Liu, You Hui Gong, Qing Yun Diao
Varroa destructor is a virulent ectoparasitic mite of western honeybee (Apis mellifera), and considered the greatest threat to apiculture around the world. Chemical method is widely used for the management of this mite. However, this method can easily induce the resistance of V. destructor to acaricides, toxicity of acaricides to honeybee and the residues in bee products. Therefore, many safe preventions and control techniques were developed to treat mite in recent years. Using pheromones of honeybee to control V...
June 18, 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29739960/time-to-death-approach-to-reveal-chronic-and-cumulative-toxicity-of-a-fungicide-for-honeybees-not-revealed-with-the-standard-ten-day-test
#11
Noa Simon-Delso, Gilles San Martin, Etienne Bruneau, Louis Hautier
Synthetic fungicides are pesticides widely used in agriculture to control phytopathogenic fungi. The systemicity, persistency and intense application of some of these fungicides, such as boscalid, leads to long periods of exposure for honeybees via contaminated water, pollen and nectar. We exposed adult honeybees in the lab to food contaminated with boscalid for 33 days instead of the standard 10-day test. Most of the toxic effects were observed after 10 days. The median time to death (LT50 ) ranged from 24...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29736177/propolis-and-its-potential-to-treat-gastrointestinal-disorders
#12
REVIEW
Luisa Mota da Silva, Priscila de Souza, Soad K Al Jaouni, Steve Harakeh, Shahram Golbabapour, Sérgio Faloni de Andrade
There are a number of disorders that affect the gastrointestinal tract. Such disorders have become a global emerging disease with a high incidence and prevalence rates worldwide. Inflammatory and ulcerative processes of the stomach or intestines, such as gastritis, ulcers, colitis, and mucositis, afflict a significant proportion of people throughout the world. The role of herbal-derived medicines has been extensively explored in order to develop new effective and safe strategies to improve the available gastrointestinal therapies that are currently used in the clinical practice...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29728057/transcriptome-profiling-of-the-honeybee-parasite-varroa-destructor-provides-new-biological-insights-into-the-mite-adult-life-cycle
#13
Fanny Mondet, Andrea Rau, Christophe Klopp, Marine Rohmer, Dany Severac, Yves Le Conte, Cedric Alaux
BACKGROUND: The parasite Varroa destructor represents a significant threat to honeybee colonies. Indeed, development of Varroa infestation within colonies, if left untreated, often leads to the death of the colony. Although its impact on bees has been extensively studied, less is known about its biology and the functional processes governing its adult life cycle and adaptation to its host. We therefore developed a full life cycle transcriptomic catalogue in adult Varroa females and included pairwise comparisons with males, artificially-reared and non-reproducing females (10 life cycle stages and conditions in total)...
May 4, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29722862/honeybees-prefer-to-steer-on-a-smooth-wall-with-tetrapod-gaits
#14
Jieliang Zhao, Fei Zhu, Shaoze Yan
Insects are well equipped in walking on complex three-dimensional terrain, allowing them to overcome obstacles or catch prey. However, the gait transition for insects steering on a wall remains unexplored. Here, we find that honeybees adopted a tetrapod gait to change direction when climbing a wall. On the contrary to the common tripod gait, honeybees propel their body forward by synchronously stepping with both middle legs and then both front legs. This process ensures the angle of the central axis of the honeybee to be consistent with the crawling direction...
March 1, 2018: Journal of Insect Science
https://www.readbyqxmd.com/read/29720447/moving-like-a-model-mimicry-of-hymenopteran-flight-trajectories-by-clearwing-moths-of-southeast-asian-rainforests
#15
Marta A Skowron Volponi, Donald James McLean, Paolo Volponi, Robert Dudley
Clearwing moths are known for their physical resemblance to hymenopterans, but the extent of their behavioural mimicry is unknown. We describe zigzag flights of sesiid bee mimics that are nearly indistinguishable from those of sympatric bees, whereas sesiid wasp mimics display faster, straighter flights more akin to those of wasps. In particular, the flight of the sesiids Heterosphecia pahangensis , Aschistophleps argentifasciata and Pyrophleps cruentata resembles both Tetragonilla collina and T. atripes stingless bees and, to a lesser extent, dwarf honeybees Apis andreniformis , whereas the sesiid Pyrophleps sp...
May 2018: Biology Letters
https://www.readbyqxmd.com/read/29718285/associations-between-the-small-hive-beetle-and-the-yeast-kodamaea-ohmeri-throughout-the-host-life-cycle
#16
Brogan A Amos, Diana L Leemon, Richard A Hayes, Bronwen W Cribb, Michael J Furlong
The small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is a pest of colonies of social bees, including the honeybee Apis mellifera L. (Hymenoptera: Apidae). We investigated A. tumida oviposition behavior and development and found that it laid eggs in clutches that ranged in size (3-75 eggs per clutch) and that when fed on hive products in laboratory culture (27°C; RH 65%; 12:12 (L:D) h) it completed three larval instars before pupation. The yeast Kodamaea ohmeri (Etchells & Bell) Y. Yamada, T...
May 1, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29717395/biocommunication-between-plants-and-pollinating-insects-through-fluorescence-of-pollen-and-anthers
#17
Shinnosuke Mori, Hiroshi Fukui, Masanori Oishi, Masayuki Sakuma, Mari Kawakami, Junko Tsukioka, Katsumi Goto, Nobuhiro Hirai
Flowering plants attract pollinators via various stimuli such as odor, color, and shape. Factors determining the foraging behavior of pollinators remain a major theme in ecological and evolutionary research, although the floral traits and cognitive ability of pollinators have been investigated for centuries. Here we show that the autofluorescence emitted from pollen and anthers under UV irradiation may act as another attractant for flower-visiting insects. We have identified fluorescent compounds from pollen and anthers of five plant species as hydroxycinnamoyl derivatives...
May 2, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29710481/caffeic-acid-phenethyl-ester-inhibits-the-progression-of-ovarian-cancer-by-regulating-nf-b-signaling
#18
Ge-Lin Liu, Nai-Zhi Han, Shi-Shun Liu
Ovarian cancer is one of the most common malignancies in women and characterized by a rapid progression to metastasis, which restricts effective treatment options. Caffeic acid phenethyl ester (CAPE), a natural honeybee product, exhibits a variety of biological activities, anti-tumor is included. Our study aims to explore whether CAPE could inhibit the progression of ovarian cancer and the underlying molecular mechanism. The establishment of ovarian cancer model was set up in mice through caudal vein injection of SKOV-3 cells...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29696753/biosynthetic-and-functional-color-scent-associations-in-flowers-of-papaver-nudicaule-and-its-impact-on-pollinators
#19
Jaime Martinez-Harms, Anne-Christin Warskulat, Bettina Dudek, Grit Kunert, Sybille Lorenz, Bill S Hansson, Bernd Schneider
Despite the increasing evidence for biosynthetic connections between flower pigments and volatiles, examples of such relationships in polymorphic plant species remains limited. Here, we investigated color-scent associations in flowers from Papaver nudicaule (Papaveraceae). We determined the spectral reflectance and the scent composition of flowers of four color cultivars. We found that pigments and volatiles occur in specific combinations in flowers of P. nudicaule. The presence of indole in the bouquets is strongly associated with the occurrence of yellow pigments called nudicaulins, for which indole is one of the final biosynthetic precursors...
April 26, 2018: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29693770/histone-deacetylase-inhibitor-treatment-restores-memory-related-gene-expression-and-learning-ability-in-neonicotinoid-treated-apis-mellifera
#20
Y-T Hu, C-K Tang, C-P Wu, P-C Wu, E-C Yang, C-C Tai, Y-L Wu
Apis mellifera plays crucial roles in maintaining the balance of global ecosystems and stability of agricultural systems by helping pollination of flowering plants, including many crops. In recent years, this balance has been disrupted greatly by some pesticides, which results in great losses of honeybees worldwide. Previous studies have found that pesticide-caused memory loss might be one of the major reasons for colony loss. Histone deacetylase inhibitors (HDACis) are chemical compounds that inhibit the activity of histone deacetylases and are known to cause hyperacetylation of histone cores and influence gene expression...
April 25, 2018: Insect Molecular Biology
keyword
keyword
69222
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"