Tracing and 3-dimensional representation of the primary afferents from the moth ear |
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| Institution: | 1. Norwegian University of Science and Technology, Department of Psychology, Neuroscience Unit, 7491 Trondheim, Norway;2. Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, Pr. Torez 44, 194223 Saint-Petersburg, Russia;1. Centro de Ciencias Matemáticas, Universidad Nacional Autónoma de México, Apartado Postal 61-3 (Xangari), Morelia Michoacán, Mexico;2. Instituto de Ingeniería, Universidad Nacional Autónoma de México, Circuito escolar s/n. Coyoacán. C.P. 04510. México, D.F., Mexico;3. Universidad Autónoma de Guerrero, Av. Lázaro Cárdenas s/n, Ciudad Universitaria, Chilpancingo de los Bravo, Guerrero 39087, Mexico;1. Department of Biology, University of Lund, Sölvegatan 35, 22362 Lund, Sweden;2. Adelaide Centre for Neuroscience Research, The University of Adelaide, Adelaide, SA 5005, Australia;1. Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA;1. Ernst-Moritz-Arndt-Universität Greifswald, Zoologisches Institut und Museum, Abteilung Cytologie und Evolutionsbiologie, Soldmannstr. 23, D-17487 Greifswald, Germany;2. Universität Rostock, Institut für Biowissenschaften, Lehrstuhl für Allgemeine & Spezielle Zoologie, Universitätsplatz 2, D-18051 Rostock, Germany;3. Universität Duisburg-Essen, Universitätsklinikum Essen, Zentrales Tierlaboratorium, Hufelandstr. 55, D-45122 Essen, Germany;1. Department of Biology, Universitätsstraße 10, University of Konstanz, Konstanz 78457, Germany;2. Life Science Division, Max Schmidheiny-Strasse 201, Leica Microsystems (Schweiz) AG, Heerbrugg, Switzerland;3. Department of Behavioral Physiology and Sociobiology, Biozentrum, Am Hubland, University of Würzburg, Würzburg, Germany;4. Computational and Evolutionary Biology, Faculty of Life Science, University of Manchester, Manchester, United Kingdom;1. College of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, PR China;2. Department of Information Process and Control Engineering, Lanzhou Petrochemical College of Vocational Technology, Lanzhou 730060, PR China |
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| Abstract: | Heliothine moths perceive acoustic information via two auditory sensory neurons only. Previous cobalt staining experiments have described the projection pattern of the two auditory neurons, called the A1 and the A2 cell, plus one additional neuron, the so-called B cell, up to the prothorax. We have obtained new and improved data about the projection pattern of the three sensory afferents by means of fluorescent staining experiments combined with scanning confocal microscopy. The present data show the fine structure of each sensory axon that arises from the moth ear and its ascending pathway relative to that of the others. In accordance with the previous data, the A2 auditory cell was found to extend projections in the pterothorax only. A novel finding is that terminal branches of the A2 cell cross the midline. The staining pattern of the two remaining neurons, the A1 and B cell, which project tightly together in the thoracic ganglia, differ somewhat from that previously described. As demonstrated here, one of these two neurons, the A1 cell, terminates in the prothoracic ganglion whereas the other, the B cell, projects further on via the cervical connectives to the subesophageal ganglion. The current data, therefore, indicate that none of the auditory afferents in the heliothine moth projects to the brain. |
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| Keywords: | Auditory receptor neurons Heliothine moth Thoracic ganglia Protocerebrum Auditory pathway Confocal microscopy SEG"} {"#name":"keyword" "$":{"id":"kwrd0045"} "$$":[{"#name":"text" "_":"subesophageal ganglion |
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