Nectar protein content and attractiveness to Aedes aegypti and Culex pipiens in plants with nectar/insect associations

Acta Tropica
Zhongyuan Chen, Christopher M Kearney

Abstract

We chose five easily propagated garden plants previously shown to be attractive to mosquitoes, ants or other insects and tested them for attractiveness to Culex pipiens and Aedes aegypti. Long term imbibition was tested by survival on each plant species. Both mosquito species survived best on Impatiens walleriana, the common garden impatiens, followed by Asclepias curassavica, Campsis radicans and Passiflora edulis, which sponsored survival as well as the 10% sucrose control. Immediate preference for imbibition was tested with nectar dyed in situ on each plant. In addition, competition studies were performed with one dyed plant species in the presence of five undyed plant species to simulate a garden setting. In both preference studies I. walleriana proved superior. Nectar from all plants was then screened for nectar protein content by SDS-PAGE, with great variability being found between species, but with I. walleriana producing the highest levels. The data suggest that I. walleriana may have value as a model plant for subsequent studies exploring nectar delivery of transgenic mosquitocidal proteins.

References

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Citations

Sep 11, 2020·BioMed Research International·José Domingos FontanaCynara de Melo Rodovalho
Mar 17, 2021·Journal of Chemical Ecology·Laurent DormontAnna Cohuet

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