Upwind responses of Anopheles stephensi to carbon dioxide and L-lactic acid: an olfactometer study
(East. Mediterr. health j).
em En
| WHOLIS
| ID: who-118491
Biblioteca responsável:
CH1.1
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
Palavras-chave
Texto completo:
1
Coleções:
04-international_org
Base de dados:
WHOLIS
Assunto principal:
Dióxido de Carbono
/
Ácido Láctico
/
Percepção Olfatória
/
Anopheles
/
Culicidae
/
Odorantes
Idioma:
En
Revista:
East. Mediterr. health j
Ano de publicação:
2012