Chemoreception

Cribb, Bronwen W. and Merritt, David J. (2013). Chemoreception. In Stephen J. Simpson and Angela E. Douglas (Ed.), The Insects: Structure and Function 5th ed. (pp. 771-792) Cambridge, U.K.: Cambridge University Press. doi:10.1017/CBO9781139035460


Author Cribb, Bronwen W.
Merritt, David J.
Title of chapter Chemoreception
Title of book The Insects: Structure and Function
Place of Publication Cambridge, U.K.
Publisher Cambridge University Press
Publication Year 2013
Sub-type Chapter in textbook
DOI 10.1017/CBO9781139035460
Open Access Status
Edition 5th
ISBN 9780521113892
9781139035460
Editor Stephen J. Simpson
Angela E. Douglas
Chapter number 24
Start page 771
End page 792
Total pages 22
Total chapters 27
Collection year 2014
Language eng
Formatted Abstract/Summary
Stimulation by chemicals involves the senses of smell (olfaction) and taste (gustation). Olfaction implies the ability to detect compounds in the gaseous state. Insects have a range of receptors sensitive to odors. Insects have taste receptors on many parts of the body, often using them for purposes unrelated to feeding, and they have the ability to detect chemicals on dry surfaces as well as in solution. For these reasons it is usual to refer to “contact chemoreception” in insects rather than “taste” as used for mammals. The functional distinction between olfaction and contact chemoreception is usually clear, although olfactory receptors can respond to substances in solution and contact chemoreceptors can respond to high concentrations of some odors. The molecular receptors that provide the “lock and key” mechanism allowing detection of both forms of chemicals also show some overlap between the two chemosensory modalities. Processing within the central nervous system is, however, quite different for olfaction and contact chemoreception.

This chapter is divided into six sections. Section 24.1 describes the external structure of the chemosensory sense organs (chemosensilla). Section 24.2 deals with the cellular components within these structures. The distribution and numbers of chemosensilla are addressed in Section 24.3. Section 24.4 investigates the function of chemosensilla. The way function fits with insect behavior is examined in Section 24.5. The final section, Section 24.6, deals with neural projection of the chemosensory organs to the central nervous system.
Keyword Insects
Structure
Function
Textbook
Q-Index Code BX
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Wed, 22 Jan 2014, 12:01:15 EST by Dr Bronwen Cribb on behalf of Centre for Microscopy and Microanalysis