keyword
MENU ▼
Read by QxMD icon Read
search

sensilla

keyword
https://www.readbyqxmd.com/read/28817633/fat-storage-in-drosophila-suzukii-is-influenced-by-different-dietary-sugars-in-relation-to-their-palatability
#1
Maurizio Biolchini, Elisabetta Murru, Gianfranco Anfora, Francesco Loy, Sebastiano Banni, Roberto Crnjar, Giorgia Sollai
The peripheral sensitivity and palatability of different carbohydrates was evaluated and their nutritional value assessed in adult females of D. suzukii by means of an electrophysiological, behavioural and metabolic approach. The electrophysiological responses were recorded from the labellar "l" type sensilla stimulated with metabolizable mono- and disaccharides (glucose and maltose) and a non-metabolizable sugar (sucralose); the response rating and the palatability to the same sugars, evaluated by recording the proboscis extension reflex (PER), was maltose>glucose>sucralose...
2017: PloS One
https://www.readbyqxmd.com/read/28808423/in-search-for-pheromone-receptors-certain-members-of-the-odorant-receptor-family-in-the-desert-locust-schistocerca-gregaria-orthoptera-acrididae-are-co-expressed-with-snmp1
#2
Pablo Pregitzer, Xingcong Jiang, Ewald Grosse-Wilde, Heinz Breer, Jürgen Krieger, Joerg Fleischer
Under given environmental conditions, the desert locust (Schistocera gregaria) forms destructive migratory swarms of billions of animals, leading to enormous crop losses in invaded regions. Swarm formation requires massive reproduction as well as aggregation of the animals. Pheromones that are detected via the olfactory system have been reported to control both reproductive and aggregation behavior. However, the molecular basis of pheromone detection in the antennae of Schistocerca gregaria is unknown. As an initial step to disclose pheromone receptors, we sequenced the antennal transcriptome of the desert locust...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28797656/plant-associated-odor-perception-and-processing-in-two-parasitoid-species-with-different-degrees-of-host-specificity-implications-for-host-location-strategies
#3
Prithwiraj Das, Tolulope Morawo, Henry Fadamiro
Microplitis croceipes and Cotesia marginiventris (Hymenoptera: Braconidae) are parasitoids of lepidopteran larvae with different degrees of host specificity. Both parasitoid species rely on host-related plant volatiles as odor cues to locate their herbivore hosts. To better understand mechanisms of odor processing in parasitoids, we tested responses of olfactory sensory neurons (OSNs) in the antennal sensilla placodea of female parasitoids to select plant volatiles and mixtures. The compounds tested include two green leaf volatiles (i...
August 8, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28761778/association-between-host-species-choice-and-morphological-characters-of-main-sensory-structures-of-culicoides-in-the-palaeartic-region
#4
Denis Augot, Leila Hadj-Henni, Stavana E Strutz, Darine Slama, Christine Millot, Jérôme Depaquit, Jean-Marc Millot
Culicoides (Diptera: Ceratopogonidae) serve as vectors of several mammalian and avian diseases, including bluetongue, Schmallenberg, African horse sickness, avian malaria and Oropouche. Host preference investigations are necessary to assess the transmission routes of vector-borne diseases and to inform mitigation strategies. A recent study examining the main sensory structures (palps and antennae) of Culicoides species suggests that they be classified as ornithophilic or mammalophilic according to their feeding habits...
2017: PeerJ
https://www.readbyqxmd.com/read/28751111/gustatory-receptor-22e-is-essential-for-sensing-chloroquine-and-strychnine-in-drosophila-melanogaster
#5
Seeta Poudel, Yunjung Kim, Jun-Seok Gwak, Sangyun Jeong, Youngseok Lee
Chloroquine, an amino quinolone derivative commonly used as an anti-malarial drug, is known to impart an unpleasant taste. Little research has been done to study chloroquine taste in insects, therefore, we examined both the deterrant properties and mechanisms underlying chloroquine perception in fruit flies. We identified the antifeedant effect of chloroquine by screening 21 gustatory receptor (Grs) mutants through behavioral feeding assays and electrophysiology experiments. We discovered that two molecular sensors, GR22e and GR33a, act as chloroquine receptors, and found that chloroquine-mediated activation of GRNs occurs through S-type sensilla...
July 24, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28745638/localization-of-odorant-receptor-genes-in-locust-antennae-by-rna-in-situ-hybridization
#6
Xiao Xu, Yinwei You, Long Zhang
Insects have evolved sophisticated olfactory reception systems to sense exogenous chemical signals. These chemical signals are transduced by Olfactory Receptor Neurons (ORNs) housed in hair-like structures, called chemosensilla, of the antennae. On the ORNs' membranes, Odorant Receptors (ORs) are believed to be involved in odor coding. Thus, being able to identify genes localized to the ORNs is necessary to recognize OR genes, and provides a fundamental basis for further functional in situ studies. The RNA expression levels of specific ORs in insect antennae are very low, and preserving insect tissue for histology is challenging...
July 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28732030/identification-of-odorant-binding-proteins-and-chemosensory-proteins-in-microplitis-mediator-as-well-as-functional-characterization-of-chemosensory-protein-3
#7
Yong Peng, Shan-Ning Wang, Ke-Ming Li, Jing-Tao Liu, Yao Zheng, Shuang Shan, Ye-Qing Yang, Rui-Jun Li, Yong-Jun Zhang, Yu-Yuan Guo
Odorant binding proteins (OBPs) and chemosensory proteins (CSPs) play important roles in transporting semiochemicals through the sensillar lymph to olfactory receptors in insect antennae. In the present study, twenty OBPs and three CSPs were identified from the antennal transcriptome of Microplitis mediator. Ten OBPs (MmedOBP11-20) and two CSPs (MmedCSP2-3) were newly identified. The expression patterns of these new genes in olfactory and non-olfactory tissues were investigated by real-time quantitative PCR (qPCR) measurement...
2017: PloS One
https://www.readbyqxmd.com/read/28728012/ovipositor-setation-in-oldest-insects-insecta-archaeognatha-revealed-by-sem-and-he-ion-microscopy
#8
Nataliia A Matushkina
Archaeognatha represent the oldest living lineage of true insects (=Ectognatha), which are remarkable, among others, for plesiomorphic genital morphology and complicated mating behaviour. I used scanning electron microscopy and He-ion microscopy to examine the ovipositor morphology of seven species, in order to describe the cuticle microsculpture. The species studied are characterised by different types of the ovipositor setation pattern, which are considered an important taxonomic feature for Archaeognatha...
July 8, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28676765/molecular-basis-of-n-n-diethyl-3-methylbenzamide-deet-in-repelling-the-common-bed-bug-cimex-lectularius
#9
Feng Liu, Xiaoming Xia, Nannan Liu
As the most extensively used chemical repellent, N,N-diethyl-3-methylbenzamide (DEET) displayed repellency to a wide range of insects, including the common bed bug, Cimex lectularius. While the neuronal or molecular basis involved in DEET's repellency have been majorly focused on mosquitos and fruit flies, DEET's repellency to the common bed bug is largely unreached. To gain new insights into the cellular and molecular mechanisms in DEET's repellency to the common bed bug, we characterized the neuronal response of bed bugs to DEET, identified the olfactory receptors targeted by DEET and demonstrated the interfering effect of DEET on bed bug's responses to human odorants...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28659767/hornets-have-it-a-conserved-olfactory-subsystem-for-social-recognition-in-hymenoptera
#10
Antoine Couto, Aniruddha Mitra, Denis Thiéry, Frédéric Marion-Poll, Jean-Christophe Sandoz
Eusocial Hymenoptera colonies are characterized by the presence of altruistic individuals, which rear their siblings instead of their own offspring. In the course of evolution, such sterile castes are thought to have emerged through the process of kin selection, altruistic traits being transmitted to following generation if they benefit relatives. By allowing kinship recognition, the detection of cuticular hydrocarbons (CHCs) might be instrumental for kin selection. In carpenter ants, a female-specific olfactory subsystem processes CHC information through antennal detection by basiconic sensilla...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28656001/two-olfactory-pathways-to-detect-aldehydes-on-locust-mouthpart
#11
Liwei Zhang, Hongwei Li, Long Zhang
Sensing chemical cues is crucial for insects through their olfactory systems to adapt the environments. The receptors employed in insect olfactory system belong to the Odorant Receptor (ORs) and Ionotropic Receptor (IRs) families. In general, ORs and IRs are present in distinct olfactory sensory neurons and function independently. Here, we present evidence that in locust, the abundant host plant odor Hexanal is detected by both IR- and OR-expressing neurons. Use of the palp opening response (POR) as a simple behavioral paradigm in conjunction with RNA interference (RNAi) revealed that these two pathways are both needed for the detection of Hexanal...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28654334/antennular-morphology-and-contribution-of-aesthetascs-in-the-detection-of-food-related-compounds-in-the-shrimp-palaemon-adspersus-rathke-1837-decapoda-palaemonidae
#12
Paolo Solari, Giorgia Sollai, Carla Masala, Francesco Loy, Francesco Palmas, Andrea Sabatini, Roberto Crnjar
Shrimp are an essential ecological component of marine ecosystems, and have commercial importance for human consumption and aquaculture. Like other decapod crustaceans, shrimp rely on chemical senses to detect and localize food resources by means of chemosensilla that are located mainly on the cephalothoracic appendages. Using the shrimp Palaemon adspersus, a model organism with omnivorous feeding behavior, we aimed to provide comparative information on the role of aesthetascs, antennular sensilla, and flicking behavior in food detection...
April 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28647127/infrared-light-detection-by-the-haller-s-organ-of-adult-american-dog-ticks-dermacentor-variabilis-ixodida-ixodidae
#13
Robert D Mitchell, Jiwei Zhu, Ann L Carr, Anirudh Dhammi, Grayson Cave, Daniel E Sonenshine, R Michael Roe
The Haller's organ (HO), unique to ticks and mites, is found only on the first tarsus of the front pair of legs. The organ has an unusual morphology consisting of an anterior pit (AP) with protruding sensilla and a posterior capsule (Cp). The current thinking is that the HO's main function is chemosensation analogous to the insect antennae, but the functionality of its atypical structure (exclusive to the Acari) is unexplained. We provide the first evidence that the HO allows the American dog tick, Dermacentor variabilis, to respond to infrared (IR) light...
August 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28644712/comparative-analysis-of-behavioral-and-transcriptional-variation-underlying-co2-sensory-neuron-function-and-development-in-drosophila
#14
Jia Wern Pan, Joi McLaughlin, Haining Yang, Charles Leo, Paula Rambarat, Sumie Okuwa, Anaïs Monroy-Eklund, Sabrina Clark, Corbin D Jones, Pelin Cayirlioglu Volkan
Carbon dioxide is an important environmental cue for many insects, regulating many behaviors including some that have direct human impacts. To further improve our understanding of how this system varies among closely related insect species, we examined both the behavioral response to CO2 as well as the transcriptional profile of key developmental regulators of CO2 sensory neurons in the olfactory system across the Drosophila genus. We found that CO2 generally evokes repulsive behavior across most of the Drosophilids we examined, but this behavior has been lost or reduced in several lineages...
June 23, 2017: Fly
https://www.readbyqxmd.com/read/28632334/functional-analysis-of-female-biased-odorant-binding-protein-6-for-volatile-and-nonvolatile-host-compounds-in-adelphocoris-lineolatus-goeze
#15
L Sun, Q Wang, S Yang, Q Wang, Z Zhang, A Khashaveh, Y-J Zhang, Y-Y Guo
The polyphagous mirid bug Adelphocoris lineolatus relies heavily on olfactory cues to track suitable host plants. Thus, a better understanding of the molecular basis of its olfactory detection could contribute to the development of effective pest management strategies. In the present study, we report the expression profile of the odorant binding protein gene A. lineolatus odorant binding protein 6 (AlinOBP6). Quantitative real-time PCR experiments suggest that AlinOBP6 is female adult antennae-biased. Cellular immunolocalization analyses show that AlinOBP6 is highly expressed in the lymph of both multiporous sensilla basiconica and uniporous sensilla chaetica...
June 20, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28623371/chemosensory-sensitivity-reflects-reproductive-status-in-the-ant-harpegnathos-saltator
#16
Majid Ghaninia, Kevin Haight, Shelley L Berger, Danny Reinberg, Laurence J Zwiebel, Anandasankar Ray, Jürgen Liebig
Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness. We have functionally characterized basiconic sensilla of the ant Harpegnathos saltator for responses to general odors in comparison to cuticular hydrocarbons which can act as fertility signals emitted by the principal reproductive(s) of a colony to inhibit reproduction by worker colony members...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28610217/a-new-genus-and-species-of-neotropical-nemobiinae-insecta-orthoptera-grylloidea-trigonidiidae-nemobiinae
#17
Fabiene Maria DE Jesus, Marcelo Ribeiro Pereira, Geanne Carla Ripani Rodrigues, Carlos Frankl Sperber
A new genus and a new species of Neotropical cricket is described: Pepoapua cariacica n. gen., n. sp., occurring in four Atlantic Forest remnants in the states of Bahia and Espírito Santo, Brazil. This new genus is morphologically similar in external characteristics, both male and female genitalia, with two other Neotropical genera of Nemobiinae: Amanayara and Kevanemobius. The combination of the external morphological characteristics, along with male genitalia, characterize a new genus through combination of the following characters: (i) males and females with morphologically similar tegmina; (ii) tegmina reduced, not reaching half of the second abdominal segment; (iii) dorsal field of the tegmina with parallel veins, without stridulatory vein or any specialized area for sound production; (iv) tibia of the first pair of legs without tympanum; (v) tibia of the third pair of legs with seven dorsal spurs, four inner and three outer, the proximo-dorsal inner spur reduced in size and the disto-dorsal inner spur without glandular aspect; (vi) ovipositor with distal portion of the dorsal and ventral valves serrated; (vii) male genitalia without evident bristles or sensillas; (viii) pseudepiphallic median lobe presenting apical and ventral projections...
June 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28573026/non-invasive-biophysical-measurement-of-travelling-waves-in-the-insect-inner-ear
#18
Fabio A Sarria-S, Benedict D Chivers, Carl D Soulsbury, Fernando Montealegre-Z
Frequency analysis in the mammalian cochlea depends on the propagation of frequency information in the form of a travelling wave (TW) across tonotopically arranged auditory sensilla. TWs have been directly observed in the basilar papilla of birds and the ears of bush-crickets (Insecta: Orthoptera) and have also been indirectly inferred in the hearing organs of some reptiles and frogs. Existing experimental approaches to measure TW function in tetrapods and bush-crickets are inherently invasive, compromising the fine-scale mechanics of each system...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28552666/effects-of-force-detecting-sense-organs-on-muscle-synergies-are-correlated-with-their-response-properties
#19
Sasha N Zill, David Neff, Sumaiya Chaudhry, Annelie Exter, Josef Schmitz, Ansgar Büschges
Sense organs that monitor forces in legs can contribute to activation of muscles as synergist groups. Previous studies in cockroaches and stick insects showed that campaniform sensilla, receptors that encode forces via exoskeletal strains, enhance muscle synergies in substrate grip. However synergist activation was mediated by different groups of receptors in cockroaches (trochanteral sensilla) and stick insects (femoral sensilla). The factors underlying the differential effects are unclear as the responses of femoral campaniform sensilla have not previously been characterized...
July 3, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28515484/the-complex-tibial-organ-of-the-new-zealand-ground-weta-sensory-adaptations-for-vibrational-signal-detection
#20
Johannes Strauß, Kathryn Lomas, Laurence H Field
In orthopteran insects, a complex tibial organ has evolved to detect substrate vibrations and/or airborne sound. Species of New Zealand weta (Anostostomatidae) with tympanal ears on the foreleg tibia use this organ to communicate by sound, while in atympanate species (which communicate by substrate drumming) the organ is unstudied. We investigated the complex tibial organ of the atympanate ground weta, Hemiandrus pallitarsis, for vibration detection adaptations. This system contains four sensory components (subgenual organ, intermediate organ, crista acustica homolog, accessory organ) in all legs, together with up to 90 scolopidial sensilla...
May 17, 2017: Scientific Reports
keyword
keyword
85546
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"