Upwind responses of Anopheles stephensi to carbon dioxide and L-lactic acid: an olfactometer study.

Omrani, S.M. and Vatandoost, H. and Oshaghi, M.A. and Rahimi, A. (2012) Upwind responses of Anopheles stephensi to carbon dioxide and L-lactic acid: an olfactometer study. Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit, 18 (11). pp. 1134-42. ISSN 1020-3397

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Abstract

Excretion of carbon dioxide and L-lactic acid through exhalation and perspiration provides olfactory signals to mosquitoes which allow them to find and bite humans; however, mosquito species differ in this regard. This study investigated upwind responses of Anopheles stephensi, mysorensis form, an important malaria vector in Asia, to carbon dioxide and L-lactic acid under laboratory conditions. While a minimal dose of carbon dioxide (90 ppm) activated the mosquitoes, 10 times this amount suppressed them. L-lactic acid alone did not produce a significant effect by itself, but addition of 6 microg/min of L-lactic acid to a range of 90 to 410 ppm carbon dioxide resulted in attraction. The results provide further support for the hypothesis that CO2 plays an important role in the host-seeking behaviour of zoophilic mosquitoes, and suggests that L-lactic acid might play a more critical role than CO2 in the attraction of An. stephensi.

Item Type: Article
Subjects: WA Public Health > Public Health Education WA.18 > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health

QU Biochemistry
Divisions: Faculty of Medicine > Basic Sciences Academic Groups > Department of Parasitology and Mycology
Depositing User: zahra bagheri .
Date Deposited: 14 Aug 2017 10:25
Last Modified: 14 Aug 2017 10:25
URI: http://eprints.skums.ac.ir/id/eprint/2938

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