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  • 2000-2004  (1)
  • 1970-1974  (1)
  • 1900-1904
  • Moulting  (1)
  • Phagostimulation  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Sensitivity to chemically diverse phagostimulants in a single gustatory neuron of a polyphagous caterpillar (2000)
    Springer
    Journal of comparative physiology 186 (2000), S. 13-19 
    Details
    ISSN: 1432-1351
    Schlagwort(e): Key words Catalpol ; Grammia ; Gustation ; Iridoid glycoside ; Phagostimulation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Caterpillars of the arctiid moth, Grammia geneura, are polyphagous, but species of Plantago are amongst their preferred food plants. A neuron in the medial styloconic sensillum on the galea has been shown to have a general phagostimulatory function. Experiments with binary mixtures and cross-adaptation have demonstrated that it responds to some sugars, to several amino acids, and also to catalpol. Catalpol is a plant secondary compound in Plantago and a phagostimulant for the caterpillars. The possible significance of combining sensitivity to nutrient compounds with sensitivity to a secondary compound is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003590050002
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    The structure of the terminal sensilla on the maxillary palps of Locusta migratoria (L.), and changes associated with moulting (1971)
    Springer
    Cell & tissue research 121 (1971), S. 48-68 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Chemoreceptor ; Locusta ; Fine structure ; Development ; Moulting
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The basic structure of the terminal sensilla of Locusta migratoria resembles that of Schistocerca gregaria. There are commonly six or ten neurons whose dendrites extend almost to the opening of the peg. Proximally the dendrites are clothed by a neurilemma cell which also encloses a basal cavity through which their ciliary region passes. The tormogen cell encloses the receptor-lymph cavity and actively secretes material into it. The receptor-lymph cavity and the basal cavity are quite separate. The development of new pegs at a moult is described. After apolysis the scolopale extends across the subcuticular space and protects the dendrites, which remain in a functional condition until shortly before ecdysis. As the trichogen cell grows out to form a new peg the tip is surrounded by a mass of electron-dense material, probably derived from the receptorlymph cavity. The function of this material is unknown. Regeneration of the dendrites is considered. The possible mechanism by which the tip of the peg opens and closes is considered and the general structure of the organule is discussed in relation to functioning.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00330916
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