Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera: Culicidae) from Kenya and Mali

Susanne C. Straif, Charles N M Mbogo, Abdoulaye M. Toure, Edward D. Walker, Michael Kaufman, Yeya T. Toure, John C Beier

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

Field studies in Kenya and Mali investigated the prevalence of bacteria in the midguts of malaria vectors, and the potential relationship between gram-negative bacteria species and Plasmodium falciparum sporozoites. Midguts were dissected from 2,430 mosquitoes: 863 Anopheles funestus Giles and 1,037 An. gambiae s.l. Giles from Kenya, and 530 An. gambiae s.l. from Mali. An. funestus had a higher prevalence of gram-negative bacteria (28.5%) compared with An. gambiae collected in Kenya and Mali (15.4 and 12.5%, respectively). Twenty different genera of bacteria were identified by gas chromatography from 73 bacterial isolates from mosquito midguts. Pantoea agglomerans (Enterobacter agglomerans) was the most common species identified. There was no association between gram-negative bacteria in the midgut and P. falciparum sporozoites in field-collected An. gambiae s.l. and An. funestus. However, An. funestus females that harbored gram positive bacteria were more likely to be infected with sporozoites compared with those with no cultivable bacteria or gram negative bacteria in their midguts. Habitat-related variation in the prevalence of diverse types of bacteria in mosquitoes could influence malaria parasite development in mosquitoes and corresponding sporozoite prevalence.

Original languageEnglish
Pages (from-to)222-226
Number of pages5
JournalJournal of Medical Entomology
Volume35
Issue number3
StatePublished - May 1 1998
Externally publishedYes

Fingerprint

Mali
Anopheles gambiae
Sporozoites
Anopheles funestus
Kenya
Culicidae
Gram-Negative Bacteria
midgut
Diptera
sporozoites
Gram-negative bacteria
Bacteria
bacteria
Plasmodium falciparum
Pantoea agglomerans
Malaria
Pantoea
malaria
Enterobacter
Anopheles

Keywords

  • Anopheles funestus
  • Anopheles gambiae
  • Malaria sporozoites
  • Midgut bacteria

ASJC Scopus subject areas

  • Insect Science
  • veterinary(all)

Cite this

Straif, S. C., Mbogo, C. N. M., Toure, A. M., Walker, E. D., Kaufman, M., Toure, Y. T., & Beier, J. C. (1998). Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera: Culicidae) from Kenya and Mali. Journal of Medical Entomology, 35(3), 222-226.

Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera : Culicidae) from Kenya and Mali. / Straif, Susanne C.; Mbogo, Charles N M; Toure, Abdoulaye M.; Walker, Edward D.; Kaufman, Michael; Toure, Yeya T.; Beier, John C.

In: Journal of Medical Entomology, Vol. 35, No. 3, 01.05.1998, p. 222-226.

Research output: Contribution to journalArticle

Straif, SC, Mbogo, CNM, Toure, AM, Walker, ED, Kaufman, M, Toure, YT & Beier, JC 1998, 'Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera: Culicidae) from Kenya and Mali', Journal of Medical Entomology, vol. 35, no. 3, pp. 222-226.
Straif SC, Mbogo CNM, Toure AM, Walker ED, Kaufman M, Toure YT et al. Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera: Culicidae) from Kenya and Mali. Journal of Medical Entomology. 1998 May 1;35(3):222-226.
Straif, Susanne C. ; Mbogo, Charles N M ; Toure, Abdoulaye M. ; Walker, Edward D. ; Kaufman, Michael ; Toure, Yeya T. ; Beier, John C. / Midgut Bacteria in Anopheles gambiae and An. funestus (Diptera : Culicidae) from Kenya and Mali. In: Journal of Medical Entomology. 1998 ; Vol. 35, No. 3. pp. 222-226.
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