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  • 1
    Electronic Resource
    Electronic Resource
    Spatial organization of olfactory receptor neurons on the antenna of the cabbage looper moth (1998)
    Springer
    Journal of comparative physiology 183 (1998), S. 433-442 
    Details
    ISSN: 1432-1351
    Keywords: Key words Electrophysiology ; Noctuidae ; Pheromone ; Single-cell ; Sensilla trichodea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Electrophysiological responses to stimulation with behaviorally relevant compounds were recorded from receptor neurons within specialized classes of sensilla on the antennae of male cabbage looper moths. Receptor neurons were found that specifically respond to stimulation with Z-7,12:AC, Z-7,14:AC, Z-9,14:AC, and Z-7,12:OH. Specialized receptor neurons were not found for the three remaining pheromone blend components, 12:AC, Z-5,12:AC, or 11,12:AC. However, a new class of sensillum containing a pair of neurons insensitive to all of the cabbage looper pheromone components was encountered. In addition, spatial patterns of distribution along the flagellum for identified classes of sensilla are described. Sensilla containing Z-7,12:AC-sensitive neurons are preferentially located on the proximal half of the antennal flagellum. In addition to this distribution along the length of the antenna, a pattern across individual flagellar subsegments is described. Sensilla containing neurons sensitive to Z-9,14:AC were found exclusively on the lateral margins of individual flagellar subsegments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003590050269
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electrophysiological responses of receptor neurons in mosquito maxillary palp sensilla to carbon dioxide (1995)
    Springer
    Journal of comparative physiology 177 (1995), S. 389-396 
    Details
    ISSN: 1432-1351
    Keywords: Mosquito ; Electrophysiology ; Host-seeking behavior ; Carbon dioxide ; Sensilla basiconica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Sensilla basiconica on the maxillary palps of female Aedes aegypti contain a receptor neuron which produces a phasic-tonic pattern of action potential response to low concentrations (150–300 ppm) of carbon dioxide (CO2), a stimulus known to be involved with host seeking behavior. These receptor neurons respond reliably to small increments in CO2 concentration (e.g., 50 ppm). We were particularly interested in evaluating the possibility that the sensitivity to step increases in CO2 concentration could be modulated by alterations in the background levels of CO2, over a range which might be encountered during host-seeking behavior. We report here that the response (impulses/s) to a single pulse of a given concentration of CO2 appears to be independent of the background level of CO2, unless that level is equal to or greater than the concentration of the stimulus pulse. Females of other mosquito species, including: Anopheles stephensi, Culex quinquefasciatus, Culiseta melanura, and Aedes taeniorhynchus, also possess sensilla with receptor neurons that respond with comparable sensitivity to CO2 stimulation. However, there is much interspecific variation in both the external morphology of the maxillary palp and the distribution of sensilla along the palp. Male Ae. aegypti have morphologically similar sensilla which also contain a receptor neuron that responds to CO2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00187475
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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