Sweet attraction: sugarcane pollen-associated volatiles attract gravid Anopheles arabiensis

Malaria Journal
Betelehem WondwosenSharon R Hill

Abstract

Anopheles arabiensis is a key vector for the transmission of human malaria in sub-Saharan Africa. Over the past 10,000 years, humans have successfully cultivated grasses and altered the landscape, creating An. arabiensis favourable environments that contain excellent habitats for both larvae and adults. Sugarcane is the most expanding agricultural system in sub-Saharan Africa, and is linked to the increased threat of malaria in rural communities. The prolific production and wind dispersal of sugarcane pollen, together with standing pools of water, often provide, as a result of irrigation, a nutrient-rich environment for the offspring of gravid malaria mosquitoes. In the present study, sugarcane pollen-associated volatiles from two cultivars are shown to attract gravid An. arabiensis in a still air two-port olfactometer and stimulate egg laying in an oviposition bioassay. Through combined gas chromatography and electroantennographic detection, as well as combined gas chromatography and mass spectrometric analyses, we identified the bioactive volatiles and generated a synthetic blend that reproduced the full behavioural repertoire of gravid mosquitoes in the Y-tube assay. Two subtractive odour blends, when compared with the full ...Continue Reading

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Citations

Feb 19, 2020·Parasites & Vectors·Madelien WoodingMarc Bouwer
Jan 25, 2021·Cell and Tissue Research·Sharon R Hill, Rickard Ignell
Nov 17, 2020·Arthropod-plant Interactions·Crispus M MbalutoPaul G Becher
Sep 24, 2020·ACS Infectious Diseases·Justin J Miller, Audrey R Odom John
Jun 11, 2021·Malaria Journal·Betelehem WondwosenRickard Ignell
Apr 23, 2021·Chemical Senses·Joanna K KonopkaChristopher J Potter
May 19, 2020·Current Opinion in Insect Science·Rickard Ignell, Sharon Rose Hill

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Software Mentioned

SPSS
GC
EAD

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