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Human attractive cues and mosquito host-seeking behavior.
Iliano V Coutinho-Abreu1, Jeffrey A Riffell2, Omar S Akbari1
1Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093, USA.
Trends in Parasitology
|October 22, 2021
Summary
Female mosquitoes detect human body odor using their antennae to find hosts. Understanding these attractive and repellent scents could help prevent mosquito-borne diseases.
Area of Science:
- Entomology
- Chemical Ecology
- Neuroscience
Background:
- Female mosquitoes use multiple cues like vision, smell, heat, and humidity to locate hosts.
- Human body odor, generated by skin bacteria metabolizing sweat, is a key attractant for mosquitoes.
Purpose of the Study:
- To explore the chemical and physical cues mosquitoes use for host-seeking.
- To identify specific human odorants that attract or repel mosquitoes.
Main Methods:
- Olfactory receptor neurons in mosquito antennae detect airborne odorants.
- Integration of olfactory, thermal, humidity, and visual sensory information in the mosquito brain.
Main Results:
- Mosquitoes identify specific volatile compounds in human body odor.
- Certain odorants are attractive, while others can trigger repellent behaviors in mosquitoes.
Conclusions:
- Understanding human scent composition is crucial for developing novel mosquito control strategies.
- Manipulating mosquito olfactory responses to body odor may mitigate the transmission of mosquito-borne pathogens.
