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Articles de revues sur le sujet « Feeding assays »

Auteur : Grafiati

Publié le 27 juin 2023

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1

Shen, Ping. "PreparingDrosophilaLarvae for Feeding Assays." Cold Spring Harbor Protocols 2012, no. 5 (2012): pdb.prot069302. http://dx.doi.org/10.1101/pdb.prot069302.

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Peters, Brenton C. "Xylophagous insects: developments in feeding assays." Australian Journal of Entomology 44, no. 2 (2005): 214–15. http://dx.doi.org/10.1111/j.1440-6055.2005.00477.x.

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Kröber, Thomas, and Patrick M. Guerin. "In vitro feeding assays for hard ticks." Trends in Parasitology 23, no. 9 (2007): 445–49. http://dx.doi.org/10.1016/j.pt.2007.07.010.

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Zavala H., Andrea, Emilio Hormazabal U., Gloria Montenegro R., et al. "Effects of extracts from Maytenus on Aegorhinus superciliosus (Coleoptera: Curculionidae) and Hippodamia convergens (Coleoptera: Coccinellidae)." Revista Colombiana de Entomología 43, no. 2 (2017): 233. http://dx.doi.org/10.25100/socolen.v43i2.5948.

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The insecticidal effects of five ethanolic extracts produced from three species of the genus Maytenus: M. boaria leaf (MBL), M. boaria bark (MBB), M. boaria seed (MBS), M. disticha leaf (MDL) and M. magellanica leaf (MML) were evaluated on the lady beetle Hippodamia convergens (Coleoptera: Coccinellidae) and on the pest of berry Aegorhinus superciliosus (Coleoptera: Curculionidae). The anti-feeding effects of the extracts on the latter were also evaluated. Residual application was used, with five concentrations for each species of insect and ten replications of each assay. To evaluate anti-fee

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TRITTEN, LUCIENNE, OLIVIER BRAISSANT, and JENNIFER KEISER. "Comparison of novel and existing tools for studying drug sensitivity against the hookworm Ancylostoma ceylanicum in vitro." Parasitology 139, no. 3 (2012): 348–57. http://dx.doi.org/10.1017/s0031182011001934.

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SUMMARYThe motility assay is the current gold standard for evaluating drug effects on hookworm larvae and adults, however, among other drawbacks the assay is time consuming, and prone to individual subjectivity. We evaluated six alternative in vitro assays, namely the feeding inhibition assay, the colourimetric AlamarBlue®, MTT formazan and acid phosphatase activity assays, as well as isothermal calorimetry and the xCELLigence System using Ancylostoma ceylanicum third-stage larvae, stimulated third-stage larvae and adults. The performances of the assays were compared to the motility assay usin

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Klingeman, William E. "Bagworm Survival and Feeding Preferences as Indicators of Resistance among Maples." Journal of Environmental Horticulture 20, no. 3 (2002): 138–42. http://dx.doi.org/10.24266/0738-2898-20.3.138.

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Abstract The bagworm (Thyridopteryx ephemeraeformis (Haworth)) is a polyphagous, native pest of numerous deciduous and evergreen ornamental plants. Bagworm larvae were used to investigate host plant susceptibility among ten species and cultivars of maples that are economically important and commonly encountered in landscapes in the eastern United States. Data analyses from 48-hour choice assays, conducted in the laboratory during 2000 and 2001, indicated that differences existed among maples for bagworm feeding preferences and host plant susceptibility. Results from the 48-hour trials were not

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Tanne, E., E. Boudon-Padieu, D. Clair, M. Davidovich, S. Melamed, and Meir Klein. "Detection of Phytoplasma by Polymerase Chain Reaction of Insect Feeding Medium and Its Use in Determining Vectoring Ability." Phytopathology® 91, no. 8 (2001): 741–46. http://dx.doi.org/10.1094/phyto.2001.91.8.741.

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A polymerase chain reaction (PCR)-based method was developed for the detection of phytoplasma in insect feeding medium (sucrose). A correlation was established between the transmissibility of Flavescence dorée phytoplasma in the experimental leafhopper vector Euscelidius variegatus and its detection by PCR in the insect feeding medium. However, phytoplasma were detected in the insects' bodies 3 weeks before they began to transmit. Hence, PCR assays of the sucrose medium reflected phytoplasma vectoring ability probably by detecting it in the insect saliva, whereas detection of phytoplasma in th

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Grace, J. Kenneth. "Oral Toxicity of Barium Metaborate to the Eastern Subterranean Termite (Isoptera: Rhinotermitidae)." Journal of Entomological Science 25, no. 1 (1990): 112–16. http://dx.doi.org/10.18474/0749-8004-25.1.112.

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The oral toxicity of barium metaborate monohydrate (Busan 11-Ml) to Reticulitermes flavipes (Kollar) was evaluated in no-choice assays by feeding termite workers for 15 and 30 days on filter papers treated with concentrations of 500–40,000 ppm (weight/weight). In the 15 day assay, 30,000 ppm resulted in 92 ± 17% termite mortality and a concomitant 86% reduction in paper consumption. Feeding for 30 days on 1,500 ppm resulted in 100% mortality. Reduced paper consumption was associated with termite mortality, and feeding on low concentrations did not differ from that on control papers. Concentrat

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Lait, Cameron G., Daniel R. Miller, Sarah L. Bates, John H. Borden, and Allison R. Kermode. "Biochemical Assay Detects Feeding Damage to Loblolly Pine Seeds Caused by the Leaffooted Pine Seed Bug (Hemiptera: Coreidae)." Journal of Entomological Science 38, no. 4 (2003): 644–53. http://dx.doi.org/10.18474/0749-8004-38.4.644.

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A large number of proteins in salivary gland extracts of the leaffooted pine seed bug, Leptoglossus corculus Say, were strongly recognized by a polyclonal antibody-based assay developed for detecting saliva of the western conifer seed bug. Leptoglossus occidentalis Heidemann, in lodgepole pine, Pinus contorta var. latifolia Engelmann, seeds. An average of approximately 85% of loblolly pine, Pinus taeda L., seeds exposed to feeding by L. corculus for 1 to 4 weeks in the laboratory contained detectable amounts of salivary proteins when the antibody assays were performed weekly on samples (n = 10

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Bhaskar Gollapudi, B., Rebekah J. Bruce, and Anil K. Sinha. "The role of feeding rejection in Drosophila mutation assays." Mutation Research Letters 144, no. 1 (1985): 13–17. http://dx.doi.org/10.1016/0165-7992(85)90117-4.

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Méndez-Paz, D., F. Omil, and J. M. Lema. "Modeling of the Acid Orange 7 anaerobic biodegradation." Water Science and Technology 48, no. 6 (2003): 133–39. http://dx.doi.org/10.2166/wst.2003.0378.

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It was found that 1-amino-2-naphthol, an intermediate generated during the anaerobic degradation of Acid Orange 7, is a redox mediator which plays a significant role in the transport of electrons to the dye, thus giving to the whole process an autocatalytic nature. Evidences of the autocatalytic behaviour were observed in experimental data previously obtained under batch and fed-batch conditions. In this paper, a kinetic model considering all these factors is proposed and validated. In batch assays, this model agrees satisfactorily with the experimental data. In the case of fed-batch assays, t

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Lippert, H., and K. Iken. "Palatability and nutritional quality of marine invertebrates in a sub-Arctic fjord." Journal of the Marine Biological Association of the United Kingdom 83, no. 6 (2003): 1215–19. http://dx.doi.org/10.1017/s0025315403008518.

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To investigate the palatability of abundant sub-Arctic sessile or sluggish invertebrates and their value as a food source, in situ experiments with natural consumer assemblages were performed in the Kongsfjord (Spitsbergen). These experiments were complemented with quantitative laboratory assays, using a generalist predatory starfish. Feeding preference and avoidance reactions were similar in both assays. Natural assemblages of predators in situ rejected nine out of ten species tested, and 12 out of 16 species were rejected in laboratory assays, indicating a high percentage of unpalatable inve

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Larson, Nicholas R., Scott T. O’Neal, Ulrich R. Bernier, Jeffrey R. Bloomquist, and Troy D. Anderson. "Terpenoid-Induced Feeding Deterrence and Antennal Response of Honey Bees." Insects 11, no. 2 (2020): 83. http://dx.doi.org/10.3390/insects11020083.

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Multiple interacting stressors negatively affect the survival and productivity of managed honey bee colonies. Pesticides remain a primary concern for beekeepers, as even sublethal exposures can reduce bee immunocompetence, impair navigation, and reduce social communication. Pollinator protection focuses on pesticide application guidelines; however, a more active protection strategy is needed. One possible approach is the use of feeding deterrents that can be delivered as an additive during pesticide application. The goal of this study was to validate a laboratory assay designed to rapidly scre

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Howlader, M. M. R., M. M. I. Hasan, M. Atikuzzaman, S. Paul, and S. Begum. "IMPACT OF DIETARY RESTRICTION ON FOLLICULAR WAVES IN CATTLE WITH PARTICULAR REFERENCE TO ANOESTRUS." Bangladesh Journal of Veterinary Medicine 15, no. 1 (2017): 27–32. http://dx.doi.org/10.3329/bjvm.v15i1.34051.

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Reproductive failure (anoestrus) is a one of the major problem in cattle production of Bangladeshdue to under feeding and unavailability of balanced ration. This study was conducted for a period from July 2009 to June 2010 to determine the nutritional impact on the follicular growth using blood hormone assays and the rate of anoestrus in cows following dietary restriction and to develop a feasible feeding technique concerning the available feed ingredients in local market. A uniform group of 2-3 years old 15 heifers were selected and were grouped randomly into three named T1(60% feeding restri

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Zhang, C. L., S. S. Hou, Y. H. Wang, F. Z. Liu, and M. Xie. "Feed input and excreta collection time in metabolisable energy assays for ducks." Czech Journal of Animal Science 52, No. 12 (2008): 463–68. http://dx.doi.org/10.17221/2331-cjas.

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Three experiments were conducted to determine the optimal feed input and excreta collection time by a bioassay of dietary true metabolisable energy (<i>TME</i>) for ducks. In experiment 1 and experiment 2, the time for the unabsorbed feed passage through the alimentary canal was determined by measuring the DM and energy of excreta and feed residues in the alimentary canal at different periods. In experiment 3, the feed input of force-feeding was studied and a total of 70 mature Pekin drakes were allotted to 7 groups, each group containing 10 birds. After fasting for 36 h, one group

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Hartshorn, Jessica A., J. Forest Palmer, and David R. Coyle. "Into the Wild: Evidence for the Enemy Release Hypothesis in the Invasive Callery Pear (Pyrus calleryana) (Rosales: Rosaceae)." Environmental Entomology 51, no. 1 (2021): 216–21. http://dx.doi.org/10.1093/ee/nvab136.

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Abstract Wild Callery pear (Pyrus calleryana Decne.) results from a cross between various cultivars of P. calleryana and any other Pyrus individual. While many cultivars of this species are still commercially produced and sold for horticultural purposes in the United States, Callery pear is a detrimental invasive species that encroaches on many managed and natural areas, damages equipment and injures people, pets, and livestock with its thorny branches, and likely causes detrimental ecological impacts. Despite its importance as an invasive species, the mechanisms behind Callery pear’s invasion

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Coulaud, Romain, Olivier Geffard, Amandine Vigneron, Hervé Quéau, Adeline François, and Arnaud Chaumot. "Linking feeding inhibition with reproductive impairment inGammarusconfirms the ecological relevance of feeding assays in environmental monitoring." Environmental Toxicology and Chemistry 34, no. 5 (2015): 1031–38. http://dx.doi.org/10.1002/etc.2886.

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Rodriguez, Ruth, Elianna Castillo, and Diana Sinuco. "Validation of an HPLC Method for Determination of Bisphenol-A Migration from Baby Feeding Bottles." Journal of Analytical Methods in Chemistry 2019 (March 28, 2019): 1–6. http://dx.doi.org/10.1155/2019/1989042.

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A simple and economic high-performance liquid chromatography (HPLC-UV-Vis) analytical method was validated for the quantitation of specific Bisphenol-A migration from baby feeding bottles. Overall and specific migration assays were done with different food simulating matrices using the filling method. Good linearity was obtained over the concentration range of 0.01–0.6 mg/kg. The limit of detection (LOD) and limit of quantification (LOQ) were 0.004 and 0.010 mg/kg, respectively. The repeatability of the method (%RSD, n=10) was between 89.5 and 99.0%, while recovery ranged from 83.2 to 98.4%. T

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Menezes Jr., Ayres Oliveira, Adriana Yatie Mikami, André Keiiti Ide, and Maurício Ursi Ventura. "Feeding preferences of Microtheca punctigera (Achard) (Coleoptera: Chrysomelidae) for some Brassicaceae plants in multiple-choice assays." Scientia Agricola 62, no. 1 (2005): 72–75. http://dx.doi.org/10.1590/s0103-90162005000100014.

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Host plant feeding preference is important basic information for the development of insect management strategies. Multiple-choice feeding preference assays were conducted in the laboratory for the chrysomelid beetle, Microtheca punctigera (Achard). Feeding was assessed 72 h after onset of experiments. With one larva per Petri dish, food items comprised watercress, Nasturtium officinale L., arugula, Eruca sativa L., mustard, Brassica juncea Cosson, Chinese cabbage, B. pekinensis (Lour.) Rupr. and wild radish (Raphanus raphanistrum L.). Feeding ranking preferences were Chinese cabbage, mustard,

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Gaire, Sudip, Coby Schal, Russell Mick, and Zachary DeVries. "The Role of Antennae in Heat Detection and Feeding Behavior in the Bed Bug (Hemiptera: Cimicidae)." Journal of Economic Entomology 113, no. 6 (2020): 2858–63. http://dx.doi.org/10.1093/jee/toaa250.

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Abstract The common bed bug (Cimex lectularius L.) is an obligate hematophagous ectoparasite that has significant impacts on human health and well-being. All life stages of bed bugs (except eggs) feed solely on blood, which is required to molt and reproduce. Bed bugs use multiple cues to locate their hosts, including heat, CO2, and body odors. Of these cues, detection of heat appears limited to a short distance of &lt;3 cm. However, it remains unclear if bed bugs can detect radiant heat, what structure(s) are responsible for heat detection, and if heat detection via the antennae is require

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Miura, Kazutoyo, Bingbing Deng, Gregory Tullo, et al. "Qualification of Standard Membrane-Feeding Assay with Plasmodium falciparum Malaria and Potential Improvements for Future Assays." PLoS ONE 8, no. 3 (2013): e57909. http://dx.doi.org/10.1371/journal.pone.0057909.

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Mikami, Adriana Yatie, and Maurício Ursi Ventura. "Repellent, antifeedant and insecticidal effects of neem oil on Microtheca punctigera." Brazilian Archives of Biology and Technology 51, no. 6 (2008): 1121–26. http://dx.doi.org/10.1590/s1516-89132008000600006.

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The effects of concentrations (0.00, 0.25, 0.50 and 1.00%) of the neem tree (Azadirachta indica - Meliaceae) oil emulsion on the behavioral and biological parameters of M. punctigera were investigated in the laboratory. Wild radish (Raphanus raphanistrum L.) host plant was used. Multiple and no-choice feeding preference assays were conducted which shown multiple effects. The males were repelled by the neem oil in multiple-choice assay. The adult (multiple-choice) and larvae (multiple and no-choice) feeding were deterred. The larvae mortality was higher in the neem oil treated than the control

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Weissling, Thomas J., Tamera M. Lewis, Les M. McDonough, and David R. Horton. "REDUCTION IN PEAR PSYLLA (HOMOPTERA: PSYLLIDAE) OVIPOSITION AND FEEDING BY FOLIAR APPLICATION OF VARIOUS MATERIALS." Canadian Entomologist 129, no. 4 (1997): 637–43. http://dx.doi.org/10.4039/ent129637-4.

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AbstractSeveral horticultural oils, an insecticidal soap, neem, garlic extract, a sugar ester, and a synthetic insect growth regulator were evaluated under laboratory conditions for their ability to inhibit pear psylla’s [Cacopsylla pyricola (Foerster)] feeding and oviposition. Supreme oil significantly reduced winterform oviposition rates in both choice and no-choice assays and reduced feeding rates in no-choice assays. Supreme oil also reduced oviposition rates of summerform females in choice tests but not in no-choice tests. In addition, summerform oviposition rates were reduced significant

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Pineda-Ríos, José Manuel, Juan Cibrián-Tovar, Luis Martín Hernández-Fuentes та ін. "α-Terpineol: An Aggregation Pheromone in Optatus palmaris (Coleoptera: Curculionidae) (Pascoe, 1889) Enhanced by Its Host-Plant Volatiles". Molecules 26, № 10 (2021): 2861. http://dx.doi.org/10.3390/molecules26102861.

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The Annonaceae fruits weevil (Optatus palmaris) causes high losses to the soursop production in Mexico. Damage occurs when larvae and adults feed on the fruits; however, there is limited research about control strategies against this pest. However, pheromones provide a high potential management scheme for this curculio. Thus, this research characterized the behavior and volatile production of O. palmaris in response to their feeding habits. Olfactometry assays established preference by weevils to volatiles produced by feeding males and soursop. The behavior observed suggests the presence of an

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Adeola, O., D. Ragland, and D. King. "Feeding and excreta collection techniques in metabolizable energy assays for ducks." Poultry Science 76, no. 5 (1997): 728–32. http://dx.doi.org/10.1093/ps/76.5.728.

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Nalam, Vamsi J., Jinlong Han, William Jacob Pitt, Shailesh Raj Acharya, and Punya Nachappa. "Location, location, location: Feeding site affects aphid performance by altering access and quality of nutrients." PLOS ONE 16, no. 2 (2021): e0245380. http://dx.doi.org/10.1371/journal.pone.0245380.

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Aphid feeding behavior and performance on a given host plant are influenced by the plants’ physical and chemical traits, including structural characters such as trichomes and nutritional composition. In this study, we determined the feeding behavior and performance of soybean aphids (Aphis glycines) on the stem, the adaxial (upper), and the abaxial (lower) leaf surfaces during early vegetative growth of soybean plants. Using the electrical penetration graph technique, we found that aphids feeding on the stem took the longest time to begin probing. Once aphids began probing, the sieve elements

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Nunn, Francesca, Kathryn Bartley, Javier Palarea-Albaladejo, and Alasdair J. Nisbet. "The evaluation of feeding, mortality and oviposition of poultry red mite (Dermanyssus gallinae) on aging hens using a high welfare on-hen feeding device." F1000Research 9 (October 22, 2020): 1266. http://dx.doi.org/10.12688/f1000research.26398.1.

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A study was performed to examine any effect of hen age on the feeding ability and mortality of different life-stages of Dermanyssus gallinae [Poultry Red Mite (PRM)] when fed using a high welfare, on-hen mite feeding device. Mite feeding assays were carried out every two weeks on a cohort of five Lohman Brown hens with devices containing adult and deutonymph PRM or adult and protonymph PRM. Feeding rates and mortality of each PRM life stage and oviposition of adult female PRM were evaluated over an 18-week period. There was a significant reduction in oviposition rates of female PRM as they fed

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Walker, Faith, Daniel Sanchez, Emma Froehlich, et al. "Endangered Nectar-Feeding Bat Detected by Environmental DNA on Flowers." Animals 12, no. 22 (2022): 3075. http://dx.doi.org/10.3390/ani12223075.

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Leptonycteris nivalis (the Mexican long-nosed bat) is an endangered nectar-feeding bat species that follows “nectar corridors” as it migrates from Mexico to the southwestern United States. Locating these nectar corridors is key to their conservation and may be possible using environmental DNA (eDNA) from these bats. Hence, we developed and tested DNA metabarcoding and qPCR eDNA assays to determine whether L. nivalis could be detected by sampling the agave flowers on which it feeds. We sampled plants with known bat visitations in the Sierra Madre Oriental in Laguna de Sanchez (LS), Nuevo León,

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Sweeney, Patrick, Changhong Li, and Yunlei Yang. "Appetite suppressive role of medial septal glutamatergic neurons." Proceedings of the National Academy of Sciences 114, no. 52 (2017): 13816–21. http://dx.doi.org/10.1073/pnas.1707228114.

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Feeding behavior is controlled by diverse neurons and neural circuits primarily concentrated in the hypothalamus and hindbrain in mammals. In this study, by using chemo/optogenetic techniques along with feeding assays, we investigate how neurons within the medial septal complex (MSc), a brain area implicated in emotion and cognition, contribute to food intake. We find that chemo/optogenetic activation of MSc glutamatergic neurons profoundly reduces food intake during both light and dark periods of the rodent light cycle. Furthermore, we find that selective activation of MSc glutamatergic proje

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Martin-Martin, Ines, Thiago Luiz Alves E. Silva, Adeline E. Williams, Joel Vega-Rodriguez, and Eric Calvo. "Performing Immunohistochemistry in Mosquito Salivary Glands." Cold Spring Harbor Protocols 2022, no. 10 (2022): pdb.top107699. http://dx.doi.org/10.1101/pdb.top107699.

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Studying protein localization in mosquito salivary glands provides novel insights on the function and physiological relevance of salivary proteins and also provides an avenue to study interactions between mosquitoes and pathogens. Salivary proteins display compartmentalization. For example, proteins involved in blood feeding are stored in the medial and distal lateral lobes, whereas proteins related to sugar metabolism localize to the proximal portion of the lateral lobes. Immunohistochemistry assays use antibodies raised against recombinant salivary proteins to reveal the protein localization

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George, Justin, Ramdas Kanissery, Mahesh Bashyal, Blessy Tamayo, and Lukasz L. Stelinski. "Survival and Feeding Behavior of Diaphorina citri (Hemiptera: Liviidae) Adults on Common Cover Crops in Citrus." Agriculture 12, no. 12 (2022): 2175. http://dx.doi.org/10.3390/agriculture12122175.

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Asian citrus psyllid, Diaphorina citri, transmits Candidatus Liberibacter asiaticus (CLas), the bacterial pathogen responsible for citrus greening disease. To explore the possibility that cover crops in citrus groves may serve as refuges for this pathogen vector during unfavorable host conditions, psyllid feeding was investigated on six common cover crop species and citrus using electrical penetration graph (EPG) recordings and behavioral bioassays. EPG recordings showed that the proportion of time spent by D. citri feeding on xylem was similar or higher on all tested cover crops (17%–32%) com

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Smit, Menno R., Eric O. Ochomo, Ghaith Aljayyoussi, et al. "Human Direct Skin Feeding Versus Membrane Feeding to Assess the Mosquitocidal Efficacy of High-Dose Ivermectin (IVERMAL Trial)." Clinical Infectious Diseases 69, no. 7 (2019): 1112–19. http://dx.doi.org/10.1093/cid/ciy1063.

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Abstract Background Ivermectin is being considered for mass drug administration for malaria, due to its ability to kill mosquitoes feeding on recently treated individuals. In a recent trial, 3-day courses of 300 and 600 mcg/kg/day were shown to kill Anopheles mosquitoes for at least 28 days post-treatment when fed patients’ venous blood using membrane feeding assays. Direct skin feeding on humans may lead to higher mosquito mortality, as ivermectin capillary concentrations are higher. We compared mosquito mortality following direct skin and membrane feeding. Methods We conducted a mosquito fee

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Clark, A. J., and K. L. Perry. "Transmissibility of Field Isolates of Soybean Viruses by Aphis glycines." Plant Disease 86, no. 11 (2002): 1219–22. http://dx.doi.org/10.1094/pdis.2002.86.11.1219.

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During the 2001 growing season, 191 symptomatic soybean (Glycine max (L.) Merr.) plants were dug from production plots in Indiana, Wisconsin, and Kentucky. Alfalfa mosaic virus (AMV), Bean pod mottle virus (BPMV), Bean yellow mosaic virus (BYMV), Peanut stunt virus (PSV), Tobacco ringspot virus (TRSV), and Soybean mosaic virus (SMV) were identified. No mixed infections were observed. The ability of the soybean aphid (Aphis glycines Matsamura) to transmit field isolates of these viruses was tested. Using naturally infected field- or greenhouse-grown soybean plants as sources, six isolates of SM

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Peñuela-Sierra, Lina Maria, Ivan Moreira, Paulo Levi Oliveira Carvalho, Juliana Beatriz Toledo, Liliane Maria Piano Gonçalves, and Adriana Gomez Gallego. "Canola meal on starting pigs feeding." Semina: Ciências Agrárias 36, no. 6 (2015): 3977. http://dx.doi.org/10.5433/1679-0359.2015v36n6p3977.

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Three experiments were carried out to determine the nutritional values and evaluate the performance of piglets fed on canola meal. In experiment I, a digestibility assay was conducted using fourteen barrow pigs, with an initial body weight of 20.62±3.30 kg. The evaluated feedstuff was canola meal, with a level of 250 g/kg in the basal diet (corn + soybean meal-based). The experimental unit consisted of one pig, with a total of seven experimental units per diet. The values as (fed basis) of digestible (DE) and metabolizable (ME) energy of canola meal were 2,995 kcal/kg and 2,796 kcal/kg, respec

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Vasconcelos, Marcelo Augusto, Thiago Costa Mendes, Wagner Luiz Soares Fortes, and Renato Crespo Pereira. "Feeding and decoration preferences of the epialtidae crab Acanthonyx scutiforms." Brazilian Journal of Oceanography 57, no. 2 (2009): 137–43. http://dx.doi.org/10.1590/s1679-87592009000200006.

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Studies on the feeding preferences of marine herbivores are very important for our better understanding of the biology and the ecological role of these organisms. Members of the family Epialtidae are usually herbivores that mask themselves with pieces of seaweed and other materials to avoid predation. In order to better understand the mechanisms of food and decorating choices of the decorator crab Acanthonyx scutiformis, two multiple-choice feeding assays were performed using fresh seaweeds and artificial food containing crude extracts of the four seaweeds Osmundaria obtusiloba, Plocamium bras

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Bousema, Teun, Thomas S. Churcher, Isabelle Morlais, and Rhoel R. Dinglasan. "Can field-based mosquito feeding assays be used for evaluating transmission-blocking interventions?" Trends in Parasitology 29, no. 2 (2013): 53–59. http://dx.doi.org/10.1016/j.pt.2012.11.004.

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Harkey, Gail A., Susan Kane Driscoll, and Peter F. Landrum. "Effect of feeding in 30-day bioaccumulation assays usingHyalella aztecain fluoranthene-dosed sediment." Environmental Toxicology and Chemistry 16, no. 4 (1997): 762–69. http://dx.doi.org/10.1002/etc.5620160421.

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Machado, Glauco B. O., Fosca P. P. Leite, and Erik E. Sotka. "Nutrition of marine mesograzers: integrating feeding behavior, nutrient intake and performance of an herbivorous amphipod." PeerJ 6 (November 9, 2018): e5929. http://dx.doi.org/10.7717/peerj.5929.

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Consumers can regulate the acquisition and use of nutrients through behavioral and physiological mechanisms. Here, we present an experimental approach that simultaneously integrates multiple nutritional traits, feeding assays, and juvenile performance to assess whether a marine herbivore (the amphipod Ampithoe valida) regulates the intake of elements (carbon and nitrogen), macronutrients (protein and non-protein) or both when offered freeze-dried tissues of seaweeds varying in nutritional content. We assessed behavioral regulation of nutrients in three ways. First, during no-choice assays, we

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Joseph, Shimat V., and Steven T. Koike. "Could Broccoli and Cauliflower Influence the Dispersal Dynamics of Western Flower Thrips (Thysanoptera: Thripidae) to Lettuce in the Salinas Valley of California?" Environmental Entomology 50, no. 4 (2021): 995–1005. http://dx.doi.org/10.1093/ee/nvab050.

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Abstract The western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), is an important, worldwide vector of two tospoviruses (Family Bunyaviridae; Genus Tospovirus), Impatiens necrotic spot virus (INSV) and Tomato spotted wilt virus (TSWV). In the Salinas Valley of California, INSV causes severe necrosis, stunting, and crop losses to lettuce (Lactuca sativa L.). Because broccoli (Brassica oleracea var. italica L.) and cauliflower (Brassica oleracea var. botrytis L.) are major rotation crops with lettuce in the Salinas Valley, it is critical to understand if these

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Snewin, V. A., S. Premawansa, G. M. Kapilananda, et al. "Transmission blocking immunity in Plasmodium vivax malaria: antibodies raised against a peptide block parasite development in the mosquito vector." Journal of Experimental Medicine 181, no. 1 (1995): 357–62. http://dx.doi.org/10.1084/jem.181.1.357.

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One approach towards the development of a vaccine against malaria is to immunize against the parasite sexual stages that mediate transmission of the parasite from man to mosquito. Antibodies against these stages, ingested with the blood meal, inhibit the parasite development in the mosquito vector, constituting "transmission blocking immunity." Most epitopes involved in transmission-blocking immunity depend on the tertiary conformational structure of surface antigens. However, one of the transmission-blocking monoclonal antibodies we have raised against Plasmodium vivax reacts with a linear ep

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Kreuger, Betty, and Daniel A. Potter. "Does Early-Season Defoliation of Crabapple (Malus sp.) by Eastern Tent Caterpillar (Lepidoptera: Lasiocampidae) Induce Resistance to Japanese Beetles (Coleoptera: Scarabaeidae)?" Journal of Entomological Science 38, no. 3 (2003): 457–67. http://dx.doi.org/10.18474/0749-8004-38.3.457.

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We tested the hypothesis that early-season defoliation of flowering crabapple, Malus sp., by eastern tent caterpillars, Malacosoma americanum F., induces localized or systemic resistance to Japanese beetles, Popillia japonica Newman, feeding on the same trees in late June. ‘Candymint Sargent’ crabapple trees were inoculated with M. americanum egg masses, resulting in extensive defoliation during March and April. Second flush leaves of defoliated trees were smaller and thinner than those of control trees. In laboratory feeding assays with non-damaged foliage, beetles generally preferred fully e

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Lantero, Elena, Jessica Fernandes, Carlos Raúl Aláez-Versón, et al. "Heparin Administered to Anopheles in Membrane Feeding Assays Blocks Plasmodium Development in the Mosquito." Biomolecules 10, no. 8 (2020): 1136. http://dx.doi.org/10.3390/biom10081136.

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Innovative antimalarial strategies are urgently needed given the alarming evolution of resistance to every single drug developed against Plasmodium parasites. The sulfated glycosaminoglycan heparin has been delivered in membrane feeding assays together with Plasmodium berghei-infected blood to Anopheles stephensi mosquitoes. The transition between ookinete and oocyst pathogen stages in the mosquito has been studied in vivo through oocyst counting in dissected insect midguts, whereas ookinete interactions with heparin have been followed ex vivo by flow cytometry. Heparin interferes with the par

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Prator, Cecilia A., and Rodrigo P. P. Almeida. "A Lectin Disrupts Vector Transmission of a Grapevine Ampelovirus." Viruses 12, no. 8 (2020): 843. http://dx.doi.org/10.3390/v12080843.

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Grapevine leafroll disease is one of the most important virus diseases of grapevines and occurs in every major grape-growing region of the world. The vector-transmission mechanisms of the causative agent, Grapevine leafroll-associated virus 3 (GLRaV-3), remain poorly understood. We show that the vine mealybug, Planococcus ficus, feeds through a membrane feeding system on GLRaV-3 viral purifications from both V. vinifera and N. benthamiana and transmits the virus to test plants from plants from both species. Building on this strategy, we used an immunofluorescence approach to localize virions t

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Kajla, Mayur K., Gregory A. Barrett-Wilt, and Susan M. Paskewitz. "Bacteria: A novel source for potent mosquito feeding-deterrents." Science Advances 5, no. 1 (2019): eaau6141. http://dx.doi.org/10.1126/sciadv.aau6141.

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Antibiotic and insecticidal bioactivities of the extracellular secondary metabolites produced by entomopathogenic bacteria belonging to genusXenorhabdushave been identified; however, their novel applications such as mosquito feeding-deterrence have not been reported. Here, we show that a mixture of compounds isolated fromXenorhabdus budapestensisin vitro cultures exhibits potent feeding-deterrent activity against three deadly mosquito vectors:Aedes aegypti,Anopheles gambiae, andCulex pipiens. We demonstrate that the deterrent active fraction isolated from replicate bacterial cultures is highly

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Venkataraman, Krithika, Veronica Jové, and Laura B. Duvall. "Methods to Assess Blood and Nectar Meals in Aedes aegypti Mosquitoes." Cold Spring Harbor Protocols 2022, no. 6 (2022): pdb.top107657. http://dx.doi.org/10.1101/pdb.top107657.

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Male and female Aedes aegypti mosquitoes survive by feeding on floral nectar for metabolic energy, but females require blood protein, obtained from biting a host, for egg development. Although males exclusively derive energy from nectar sugars, females must select the meal that best matches their present metabolic and reproductive needs. In females, blood and nectar promote independent feeding behaviors with distinct sensory appendages, meal sizes, digestive tract targets, and metabolic fates. Understanding how male and female mosquitoes recognize, locate, and metabolize nutrients is essential

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Wang, Qing, Minwei Huang, Cheng Peng, et al. "MT-Feeding-Induced Impermanent Sex Reversal in the Orange-Spotted Grouper during Sex Differentiation." International Journal of Molecular Sciences 19, no. 9 (2018): 2828. http://dx.doi.org/10.3390/ijms19092828.

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In this study, we systematically investigated the process of sex reversal induced by 17-methyltestosterone (MT) feeding and MT-feeding withdrawal at the ovary differentiation stage in orange-spotted groupers, Epinephelus coioides. Gonadal histology showed that MT feeding induced a precocious sex reversal from immature ovaries to testes, bypassing the formation of an ovarian cavity, and MT-feeding withdrawal led to an ovarian fate. In both the MT feeding and MT-feeding withdrawal phases, cytochrome P450 family 11 subfamily B (cyp11b) gene expression and serum 11-KT levels were not significantly

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Brown, Elizabeth, Kurtresha Worden, Yuanyuan Li, Pavel Masek, and Alex C. Keene. "Innate and Conditioned Taste Processing inDrosophila." Cold Spring Harbor Protocols 2023, no. 6 (2023): pdb.top107864. http://dx.doi.org/10.1101/pdb.top107864.

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Peripheral detection of tastants allows animals to detect the dietary value of food and its potential toxicity. Many tastants such as sugars and fats elicit reflexive appetitive responses, whereas other foods such as quinine induce aversion. The relative value of food can change in accordance with an animal's internal state and prior experience. Understanding the neural and genetic bases for the detection and response to tastants, as well as how these behaviors change with experience, is central to sensory neuroscience. The presentation of attractive tastants to the proboscis or legs of the fr

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Zalucki, Jacinta M., David G. Heckel, Peng Wang, et al. "A Generalist Feeding on Brassicaceae: It Does Not Get Any Better with Selection." Plants 10, no. 5 (2021): 954. http://dx.doi.org/10.3390/plants10050954.

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Brassicaceae (Cruciferae) are ostensibly defended in part against generalist insect herbivores by toxic isothiocyanates formed when protoxic glucosinolates are hydrolysed. Based on an analysis of published host records, feeding on Brassicas is widespread by both specialist and generalists in the Lepidoptera. The polyphagous noctuid moth Helicoverpa armigera is recorded as a pest on some Brassicas and we attempted to improve performance by artificial selection to, in part, determine if this contributes to pest status. Assays on cabbage and kale versus an artificial diet showed no difference in

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Flonc, Brianna, Mary Barbercheck, and Imtiaz Ahmad. "Observations on the Relationships between Endophytic Metarhizium robertsii, Spodoptera frugiperda (Lepidoptera: Noctuidae), and Maize." Pathogens 10, no. 6 (2021): 713. http://dx.doi.org/10.3390/pathogens10060713.

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Fungi in the genus Metarhizium are entomopathogens that can establish endophytically inside plants and benefit them through growth promotion and pest suppression. Lab- and greenhouse-based experiments were conducted to examine the effects of endophytic M. robertsii colonization in maize (Zea mays) on fall armyworm (FAW) (Spodoptera frugiperda). Maize seeds were inoculated with M. robertsii conidia, plants were evaluated for endophytic colonization, and then relative growth rate (RGR) and feeding behavior of larval FAW fed leaves from inoculated and uninoculated maize were measured. Endophytic

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Bousema, Teun, Rhoel R. Dinglasan, Isabelle Morlais, et al. "Mosquito Feeding Assays to Determine the Infectiousness of Naturally Infected Plasmodium falciparum Gametocyte Carriers." PLoS ONE 7, no. 8 (2012): e42821. http://dx.doi.org/10.1371/journal.pone.0042821.

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