PMID: 44947Dec 1, 1979

Effect of bacterial infections and antibiotics on tsetse flies (Diptera, Glossinidae) (author's transl)

Zentralblatt Für Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Erste Abteilung Originale. Reihe A: Medizinische Mikrobiologie Und Parasitologie
H Wetzel, G Thiemann

Abstract

The membrane feeding technique (in vitro feeding) used for the rearing of tsetse flies has advantages over the conventional method of feeding the flies on host animals. However, as long as blood remains the sole source of tsetse fly nutrition, the risk remains of blood being contaminated during collection, storage or feeding with bacteria pathogenic to the flies. The resulting high mortality of the tsetse flies endangers the success of this rearing. The experiments described here have shown that Glossina m. morsitans Westw. are more sensitive to Pseudomonas aeruginosa than G. p. palpalis Rob.-Desv. Rearing experiments over several years have confirmed this finding in that the latter species has never been threatened by high bacterial-induced mortality, whereas in 1973-74, due to contamination of the in vitro fed blood, a population of G. m. morsitans was difficult to colonize. The quantity of infected blood intake (14 to 70 mg) had no influence on the survival rate. However, when flies were infected once with Pseudomonas aeruginosa (dilution stage of 10(-3)), the organisms were eliminated after only nine days in living G. p. palpalis, but after 14 days in living G. m. morsitans. Females were infected at different stages of preg...Continue Reading

Related Concepts

Antibiotic Resistance, Microbial
Glossina
Abnormal Degeneration
Tissue Membrane
Pseudomonas aeruginosa (antigen)
Entire Uterus
Neomycin Palmitate
Antibiotic throat preparations
Pathogenic Organism
Neoplasm of Uncertain or Unknown Behavior of Uterus

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