ANTENNAL THERMOSENSITIVE AND HYGROSENSITIVE SENSILLA IN ANTHERAEA-PERNYI (LEPIDOPTERA, SATURNIIDAE) - ULTRASTRUCTURE AND IMMUNOHISTOCHEMICAL LOCALIZATION OF NA+, K+-ATPASE

ZIMMERMANN, B (1992) ANTENNAL THERMOSENSITIVE AND HYGROSENSITIVE SENSILLA IN ANTHERAEA-PERNYI (LEPIDOPTERA, SATURNIIDAE) - ULTRASTRUCTURE AND IMMUNOHISTOCHEMICAL LOCALIZATION OF NA+, K+-ATPASE. CELL AND TISSUE RESEARCH, 270 (2). pp. 365-376. ISSN 0302-766X, 1432-0878

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Abstract

In an attempt to identify and localize the components of voltage sources involved in sensory transduction in insect sensilla, the thermo-/hygrosensitive sensilla of the moth Antheraea pernyi were probed with a polyclonal antiserum against Na+,K+-ATPase in cryofixed and freeze-substituted preparations. The antiserum recognized epitopes on the cytoplasmic membranes of the dendritic inner segments and somata of the sensory cells and also on the cytoplasmic membranes of glial cells surrounding the initial axon segments. The findings support the current concept that ion pumps in the cytoplasmic membranes of the dendritic inner segments and somata of the sensory cells contribute to the maintenance of the resting potential of the sensory cells and to the driving forces generating the receptor currents in response to stimulation of the sensillum. Morphological features and immunohistochemical characteristics of the region of the initial axon segment are also discussed with respect to the initiation of action potentials in these sensilla.

Item Type: Article
Uncontrolled Keywords: NO-PORE SENSILLA; GLIAL-CELLS; PLASMA-MEMBRANE; INSECT SENSILLA; BOMBYX-MORI; HYGRORECEPTORS; CRYOFIXATION; RECEPTORS; THERMORECEPTORS; PHOTORECEPTORS; SENSILLA; IMMUNOHISTOCHEMISTRY; CRYOFIXATION; FREEZE-SUBSTITUTION; THERMORECEPTORS; HYGRORECEPTORS; SENSORY TRANSDUCTION; ION PUMPS; ANTHERAEA-PERNYI (INSECTA)
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:44
URI: https://pred.uni-regensburg.de/id/eprint/54302

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