Odor coding in the Drosophila antenna is examined by a functional analysis of individual olfactory receptor neurons (ORNs) in vivo. Sixteen distinct classes of ORNs, each with a unique response spectrum to a panel of 47 diverse odors, are identified by extracellular recordings. ORNs exhibit multiple modes of response dynamics: an individual neuron can show either excitatory or inhibitory responses, and can exhibit different modes of termination kinetics, when stimulated with different odors. The 16 ORN classes are combined in stereotyped configurations within seven functional types of basiconic sensilla. One sensillum type contains four ORNs and the others contain two neurons, combined according to a strict pairing rule. We provide a functional map of ORNs, showing that each ORN class is restricted to a particular spatial domain on the antennal surface.
Projection patterns of different types of antennal sensilla in the antennal glomeruli of Drosophila melanogaster
Requirement for a phospholipase C in odor response: overlap between olfaction and vision in Drosophila
odr-10 encodes a seven transmembrane domain olfactory receptor required for responses to the odorant diacetyl
Automatic sorting of multiple unit neuronal signals in the presence of anisotropic and non-Gaussian variability
The odor specificities of a subset of olfactory receptor neurons are governed by Acj6, a POU-domain transcription factor
Drosophila as a focus in olfactory research: mapping of olfactory sensilla by fine structure, odor specificity, odorant receptor expression, and central connectivity
Inactivation of olfactory sensilla of a single morphological type differentially affects the response of Drosophila to odors
Why are insect olfactory receptor neurons grouped into sensilla? The teachings of a model investigating the effects of the electrical interaction between neurons on the transepithelial potential and the neuronal transmembrane potential
The chemosensory basis for behavioral divergence involved in sympatric host shifts II: olfactory receptor neuron sensitivity and temporal firing pattern to individual key host volatiles
The chemosensory basis for behavioral divergence involved in sympatric host shifts. I. Characterizing olfactory receptor neuron classes responding to key host volatiles
Molecular characterization of the carbon dioxide receptor in the oriental latrine fly, Chrysomya megacephala (Diptera: Calliphoridae)
Fine structure and primary sensory projections of sensilla located in the labial-palp pit organ of Helicoverpa armigera (Insecta)
The anatomical pathways for antennal sensory information in the central nervous system of the cricket, Gryllus bimaculatus.
High efficiency of a double-screening method on single P-element insertion lines to identify quantitative trait mutants in Drosophila melanogaster
Balanced olfactory antagonism as a concept for understanding evolutionary shifts in moth sex pheromone blends.
Predatory mite attraction to herbivore-induced plant odors is not a consequence of attraction to individual herbivore-induced plant volatiles.
Central projections of olfactory receptor neurons from single antennal and palpal sensilla in mosquitoes
Specificity and sensitivity of plant odor-detecting olfactory sensory neurons in Ctenarytaina eucalypti (Sternorrhyncha: Psyllidae)
Olfactory responses of the antennal trichoid sensilla to chemical repellents in the mosquito, Culex quinquefasciatus
Combinatorial expression of Prospero, Seven-up, and Elav identifies progenitor cell types during sense-organ differentiation in the Drosophila antenna
Electrophysiological characterization of olfactory cell types in the antennae and palps of the housefly
Structure and function of the antennal sensilla of the palm weevil Rhynchophorus palmarum (Coleoptera, Curculionidae)
A honeybee's ability to learn, recognize, and discriminate odors depends upon odor sampling time and concentration.
A single population of olfactory sensory neurons mediates an innate avoidance behaviour in Drosophila
Functional asymmetry in Caenorhabditis elegans taste neurons and its computational role in chemotaxis.
Brain developing: Influences & Outcomes
This feed focuses on influences that affect the developing brain including genetics, fetal development, prenatal care, and gene-environment interactions. Here is the latest research in this field.