Animal Diversity Mosquito Paper Flashcards
Malaria causes over … … human cases and over … … deaths each year.
200 million
770 thousand
Infection with plasmodium falciparum causes….
Alterations in behavioural responses to host-derived olfactory stimuli in host seeking female Anopheles gambiae mosquitos
P. falciparum-infected mosquitos were significantly … … … to human … than uninfected mosquitos
Significantly more attracted
Odours
Both infected and uninfected mosquitos landed significantly more on a substrate … … … … compared to a clean substrate
Emanating human skin odour
However, significantly more infected mosquitos … and … on a substrate emanating human skin odour than uninfected mosquitos
Landed, probed
In previous studies it has been shown that transmissible infected mosquitos take..
Larger and more frequent blood meals
Than uninfected mosquitos and those infected with non-transmissible oocyst forms
Human odours were collected using a…
Nylon matrix
What was used to measure the landing responses?
A cage olfactometer
It is likely that the mechanism underlying the behavioral difference in infected mosquitoes lies within the … …, possibly mediated by alteration of …-… … (OBPs) or … and … receptors (ORs and IRs; Figure 1B) tuned to host-derived semiochemicals
olfactory system
Odourant-binding proteins
Olfactory, ionotropic
Where were the mosquitos from?
Cameroon (Ngousso strain)