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J Med Entomol

Title:		A Survey of Chemoreceptive Responses on Different Mosquito Appendages
Author(s):		Yang L; Agramonte N; Linthicum KJ; Bloomquist JR;
Address:		"Neurotoxicology Laboratory, Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL. USDA, ARS, Center for Medical, Agricultural and Veterinary Entomology, Gainesville, FL"
Journal Title:		J Med Entomol
Year:		2021
Volume:		58
Issue:		1
Page Number:		475 - 479
DOI:		10.1093/jme/tjaa154
ISSN/ISBN:		1938-2928 (Electronic) 0022-2585 (Linking)
Abstract:		"Research on the functions of insect chemoreceptors have primarily focused on antennae (olfactory receptors) and mouthparts (gustatory receptors). However, chemoreceptive sensilla are also present on other appendages, such as the leg tarsi and the anterior wing margin, and their specific roles in chemoreception and mosquito behavior remain largely unknown. In this study, electrophysiological analyses in an electroantennogram recording format were performed on Aedes aegypti (L., Diptera: Culicidae) antennae, mouthparts, tarsi, and wings during exposure to a variety of insect repellent and attractant compounds. The results provide evidence that the tarsi and wings can sense chemicals in a gaseous form, and that the odors produce differing responses on different appendages. The most consistent and strongest response occurred when exposed to triethylamine (TEA). Antennae and mouthparts showed nearly identical responses pattern to all tested compounds, and their rank orders of effectiveness were similar to those of fore- and mid-leg tarsi. Hindleg tarsi only responded to TEA, indicating that the hind legs are not as chemoreceptive. Wings responded to a range of odorants, but with a different rank order and voltage amplitude. Insights gleaned into the function of these appendages in insect chemoreception are discussed"
Keywords:		Aedes/cytology/*drug effects/physiology Animals Arthropod Antennae/cytology/drug effects/*physiology Chemoreceptor Cells/cytology/drug effects/physiology Extremities/anatomy & histology/physiology Insect Repellents/*administration & dosage Pheromones/*adm;
Notes:		"MedlineYang, Liu Agramonte, Natasha Linthicum, Kenneth J Bloomquist, Jeffrey R eng Research Support, U.S. Gov't, Non-P.H.S. England 2020/08/03 J Med Entomol. 2021 Jan 12; 58(1):475-479. doi: 10.1093/jme/tjaa154"