Aedes aegypti: Sensilla trichodea and stimulus-conducting structures

Muir, Lynda E. and Cribb, Bronwen W. (1994) Aedes aegypti: Sensilla trichodea and stimulus-conducting structures. Journal of Insect Physiology, 40 12: 1017-1023.


Author Muir, Lynda E.
Cribb, Bronwen W.
Title Aedes aegypti: Sensilla trichodea and stimulus-conducting structures
Journal name Journal of Insect Physiology   Check publisher's open access policy
ISSN 0022-1910
Publication date 1994-12
Sub-type Article (original research)
DOI 10.1016/0022-1910(94)90054-X
Volume 40
Issue 12
Start page 1017
End page 1023
Total pages 7
Place of publication Oxford, United Kingdom
Publisher Pergamon
Language eng
Abstract Much of the morphology of the olfactory sensilla on the antennae of the mosquito Aedesaegypti (L.) has been described, however little is known about the fate of odour molecules once they have been adsorbed onto the surfaces of sensilla. A stimulus-conducting system of pores, pore kettles, and pore tubules has been described for the sensillatrichodea (olfactory hairs) of several insects but not mosquitoes. Scanning electron microscopy was used to identify the s. trichodea of Ae. aegypti and to attempt visualization of their pore openings. Chemical fixation, cryopreparation, freeze drying, and negative staining, with high resolution transmission electron microscopy (TEM), were used to locate putative stimulus-conductingstructures associated with the pores. TEM sections using Dalton's fixative or freeze drying showed pores and pore tubules, whereas pore tubules were poorly preserved in cryoprepared sections. The putative stimulus-conductingstructures were clearly demonstrated by negative staining of whole sensilla which was quick and easy. The current hypothesis of olfactory stimulus conduction is extended to include Ae. aegypti.
Keyword Electronmicroscopy
Sensillatrichodea
Aedesaegypti
Cryofixation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Biological Sciences Publications
Centre for Microscopy and Microanalysis Publications
 
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