Ultrastructure and Function of Insect Thermo- And Hygroreceptors

Ultrastructure and Function of Insect Thermo- And Hygroreceptors Helmut Altner and Richard Loftus Institute of Zoology, University of Regensburg, D-8400 Regensburg, Federal Republic of Germany PERSPECTIVES AND OVERVIEW Recordings from a single sensillum containing a cold receptor were fIrst reported by Lacher (40) twenty years ago. Their source was the antenna of Apis mellifica. The same sensillum also yielded the fIrst recordings from a moist air receptor. That a third physiological type was also present in the sensillum went unrecognized for several years, however. It, the dry air receptor, was discov­ ered by Waldow (73) on the antenna of Locusta migratoria. Since then this sensory triad has been examined on four other species of as many orders. It represents just one combination of thermo- and hygroreceptors that has caught the attention of investigators curious as to the structure of those "chinks" in an insect's armor plating through which information on basic properties of a biotope gains access to the animal's interior. For animals as small as insects, sunlit biotopes may be quite unmanagable if not quickly lethal in the absence of instant clues about their temperature and humidity. To have shown that a cold-receptive cell is present in several sensilla does not constitute automatic proof that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Entomology Annual Reviews

Ultrastructure and Function of Insect Thermo- And Hygroreceptors

Annual Review of Entomology, Volume 30 (1) – Jan 1, 1985

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Publisher
Annual Reviews
Copyright
Copyright 1985 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4170
eISSN
1545-4487
D.O.I.
10.1146/annurev.en.30.010185.001421
Publisher site
See Article on Publisher Site

Abstract

Helmut Altner and Richard Loftus Institute of Zoology, University of Regensburg, D-8400 Regensburg, Federal Republic of Germany PERSPECTIVES AND OVERVIEW Recordings from a single sensillum containing a cold receptor were fIrst reported by Lacher (40) twenty years ago. Their source was the antenna of Apis mellifica. The same sensillum also yielded the fIrst recordings from a moist air receptor. That a third physiological type was also present in the sensillum went unrecognized for several years, however. It, the dry air receptor, was discov­ ered by Waldow (73) on the antenna of Locusta migratoria. Since then this sensory triad has been examined on four other species of as many orders. It represents just one combination of thermo- and hygroreceptors that has caught the attention of investigators curious as to the structure of those "chinks" in an insect's armor plating through which information on basic properties of a biotope gains access to the animal's interior. For animals as small as insects, sunlit biotopes may be quite unmanagable if not quickly lethal in the absence of instant clues about their temperature and humidity. To have shown that a cold-receptive cell is present in several sensilla does not constitute automatic proof that

Journal

Annual Review of EntomologyAnnual Reviews

Published: Jan 1, 1985

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