Aedes Aegypti Mosquitoes Detect Acidic Volatiles in Human Odor Using the IR8a Pathway

2018 ◽  
Author(s):  
Joshua I. Raji ◽  
Nadia Melo ◽  
John Castillo ◽  
Sheyla Gonzalez ◽  
Valeria Saldana ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Human Odor

scholarly journals Aedes aegypti Mosquitoes Detect Acidic Volatiles Found in Human Odor Using the IR8a Pathway

2019 ◽  
Vol 29 (8) ◽  
pp. 1253-1262.e7 ◽  
Author(s):  
Joshua I. Raji ◽  
Nadia Melo ◽  
John S. Castillo ◽  
Sheyla Gonzalez ◽  
Valeria Saldana ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Human Odor

scholarly journals Collective behavior quantification on human odor effects against female Aedes aegypti mosquitoes—Open source development

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0171555 ◽  
Author(s):  
Abdul Halim Poh ◽  
Mahmoud Moghavvemi ◽  
Cherng Shii Leong ◽  
Yee Ling Lau ◽  
Alireza Safdari Ghandari ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Open Source ◽  
Collective Behavior ◽  
Human Odor ◽  
Open Source Development

scholarly journals Avoidance of the plant hormone cis-jasmone by Aedes aegypti depends on mosquito age in both plant and human odor backgrounds

2021 ◽  
Author(s):  
Jetske Gudrun de Boer ◽  
Aron P.S. Kuiper ◽  
Joeri Groot ◽  
Joop J.A. van Loon
Keyword(s):  
Aedes Aegypti ◽  
Mosquito Species ◽  
Lima Bean ◽  
Olfactory Response ◽  
Metabolic Energy ◽  
Young Females ◽  
Olfactory Responses ◽  
Bean Plants ◽  
Human Odor ◽  
Solvent Control

Abstract Adults of many mosquito species feed on plants to obtain metabolic energy and to enhance reproduction. Mosquitoes primarily rely on olfaction to locate plants and are known to respond to a range of plant volatiles. We studied the olfactory response of the yellow fever mosquito Aedes aegypti to methyl jasmonate (MeJA) and cis-jasmone (CiJA), volatile compounds originating from the octadecanoid signaling pathway that plays a key role in plant defense against herbivores. Specifically, we investigated how Ae. aegypti of different ages responded to elevated levels of CiJA in two attractive odor contexts, either derived from Lima bean plants or from human skin. Aedes aegypti females landed significantly less often on a surface with CiJA and MeJA compared to the solvent control, CiJA exerting a stronger reduction in landing than MeJA. Odor context (plant or human) had no significant main effect on the olfactory responses of Ae. aegypti females to CiJA. Mosquito age significantly affected the olfactory response, older females (7–9 d) responding more strongly to elevated levels of CiJA than young females (1–3 d) in either odor context. Our results show that avoidance of CiJA by Ae. aegypti is independent of odor background, suggesting that jasmonates are inherently aversive cues to these mosquitoes. We propose that avoidance of plants with elevated levels of jasmonates is adaptive to mosquitoes to reduce the risk of encountering predators that is higher on these plants, i.e. by avoiding ‘enemy-dense-space’.

scholarly journals Avoidance of the Plant Hormone Cis-Jasmone by Aedes aegypti Depends On Mosquito Age in Both Plant and Human Odor Backgrounds

2021 ◽  
Vol 47 (8-9) ◽  
pp. 810-818
Author(s):  
Jetske G. de Boer ◽  
Aron P. S. Kuiper ◽  
Joeri Groot ◽  
Joop J. A. van Loon
Keyword(s):  
Aedes Aegypti ◽  
Mosquito Species ◽  
Lima Bean ◽  
Olfactory Response ◽  
Metabolic Energy ◽  
Young Females ◽  
Olfactory Responses ◽  
Bean Plants ◽  
Human Odor ◽  
Solvent Control

AbstractAdults of many mosquito species feed on plants to obtain metabolic energy and to enhance reproduction. Mosquitoes primarily rely on olfaction to locate plants and are known to respond to a range of plant volatiles. We studied the olfactory response of the yellow fever mosquito Aedes aegypti to methyl jasmonate (MeJA) and cis-jasmone (CiJA), volatile compounds originating from the octadecanoid signaling pathway that plays a key role in plant defense against herbivores. Specifically, we investigated how Ae. aegypti of different ages responded to elevated levels of CiJA in two attractive odor contexts, either derived from Lima bean plants or human skin. Aedes aegypti females landed significantly less often on a surface with CiJA and MeJA compared to the solvent control, CiJA exerting a stronger reduction in landing than MeJA. Odor context (plant or human) had no significant main effect on the olfactory responses of Ae. aegypti females to CiJA. Mosquito age significantly affected the olfactory response, older females (7–9 d) responding more strongly to elevated levels of CiJA than young females (1–3 d) in either odor context. Our results show that avoidance of CiJA by Ae. aegypti is independent of odor background, suggesting that jasmonates are inherently aversive cues to these mosquitoes. We propose that avoidance of plants with elevated levels of jasmonates is adaptive to mosquitoes to reduce the risk of encountering predators that is higher on these plants, i.e. by avoiding ‘enemy-dense-space’.

scholarly journals Efficacy of Active Ingredients From the EPA 25(B) List in Reducing Attraction of Aedes aegypti (Diptera: Culicidae) to Humans

2019 ◽  
Author(s):  
Soumi Mitra ◽  
Stacy D Rodriguez ◽  
Julia Vulcan ◽  
Joel Cordova ◽  
Hae-Na Chung ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Environmental Protection Agency ◽  
Protection Agency ◽  
Active Ingredients ◽  
Minimum Risk ◽  
Cinnamon Oil ◽  
Registration Process ◽  
Human Odor ◽  
Mosquito Repellents ◽  
Spearmint Oil

Abstract Mosquitoes of the Aedes genus are vectors for dengue, chikungunya, Zika, and yellow fever viruses. Mosquito repellents are an effective way to prevent mosquito bites and reduce the spread of mosquito-borne diseases. In the early 90s, the U.S. Environmental Protection Agency (EPA) published a list of active ingredients that pose minimum risk to human health that can be used as pesticides or repellents without passing the EPA registration process. The present study examined the efficacy of 21 of the active ingredients listed by the EPA 25 (B) exempt list and five commercially available sprays that only contained active ingredients from the EPA 25(B) list in repelling female Aedes aegypti (L.) females. We performed choice bioassays in a controlled laboratory environment, using a Y-tube olfactometer to determine attraction rates of humans to female Ae. aegypti in the presence of one of the 21 active ingredients and five commercially available repellent sprays. We found that cinnamon oil, peppermint oil, spearmint oil, lemongrass oil, and garlic oil reduced mosquito attraction to human odor. Of the five commercial repellent sprays, only one reduced mosquito attraction for up to 30 min in our assay. The EPA 25 (B) list contains active ingredients that under the conditions of our assay repel Ae. aegypti.

scholarly journals LABORATORY EVALUATION OF MOSQUITO TRAPS BAITED WITH A SYNTHETIC HUMAN ODOR BLEND TO CAPTURE AEDES AEGYPTI

2005 ◽  
Vol 21 (2) ◽  
pp. 229-233 ◽  
Author(s):  
Ivoneide M. Silva ◽  
Álvaro E. Eiras ◽  
Daniel L. Kline ◽  
Ulrich R. Bernier
Keyword(s):  
Aedes Aegypti ◽  
Laboratory Evaluation ◽  
Human Odor

Geographic Variation in Attraction to Human Odor Compounds by Aedes aegypti Mosquitoes (Diptera: Culicidae): A Laboratory Study

2006 ◽  
Vol 32 (8) ◽  
pp. 1625-1634 ◽  
Author(s):  
Craig R. Williams ◽  
Scott A. Ritchie ◽  
Richard C. Russell ◽  
Alvaro E. Eiras ◽  
Daniel L. Kline ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Geographic Variation ◽  
Laboratory Study ◽  
Human Odor ◽  
Odor Compounds
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