Infectivity and virulence of Trypanosoma brucei metacyclics from Glossina morsitans morsitans salivary glands infected with tsetse DNA virus

1994 ◽  
Vol 15 (4-5) ◽  
pp. 551-556
Author(s):  
Walter G. Z. O. Jura ◽  
Leonard H. Otieno
Keyword(s):  
Salivary Glands ◽  
Trypanosoma Brucei ◽  
Glossina Morsitans Morsitans ◽  
Glossina Morsitans ◽  
Dna Virus

Trypanosome infections and survival in tsetse

Parasitology ◽  
1998 ◽  
Vol 116 (S1) ◽  
pp. S23-S28 ◽  
Author(s):  
I. Maudlin ◽  
S. C. Welburn ◽  
P. J. M. Milligan
Keyword(s):  
Salivary Gland ◽  
Salivary Glands ◽  
Trypanosoma Brucei ◽  
Glossina Morsitans Morsitans ◽  
Trypanosoma Congolense ◽  
Vectorial Capacity ◽  
Trypanosome Infection ◽  
Trypanosoma Brucei Rhodesiense ◽  
Glossina Morsitans ◽  
Differential Effects

SummaryThe effect of trypanosome infection on vector survival was observed in a line of Glossina morsitans morsitans selected for susceptibility to trypanosome infection. The differential effects of midgut and salivary gland infections on survival were examined by exposing flies to infection with either Trypanosoma congolense which colonizes midgut and mouthparts or Trypanosoma brucei rhodesiense which colonizes midgut and salivary glands. A comparison of the survival distributions of uninfected flies with those exposed to infection showed that salivary gland infection significantly reduces tsetse survival; midgut infection had little or no effect on the survival of tsetse. The significance of these findings is discussed in relation to the vectorial capacity of wild flies.

Infection of post-teneral tsetse flies (Glossina morsitans morsitans and Glossina morsitans centralis) with Trypanosoma brucei brucei

1988 ◽  
Vol 66 (6) ◽  
pp. 1289-1292 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Trypanosoma Brucei ◽  
Significant Proportion ◽  
Glossina Morsitans Morsitans ◽  
Tsetse Flies ◽  
Glossina Morsitans ◽  
Trypanosoma Brucei Brucei ◽  
Male And Female ◽  
Glossina Morsitans Centralis

A significant proportion of post-teneral male Glossina morsitans morsitans Westwood and post-teneral male and female Glossina morsitans centralis Machado develop mature infections of Trypanosoma brucei brucei Plimmer and Bradford without being starved before feeding upon infected rabbits.

Antigenic variation in cyclically transmitted Trypanosoma brucei. Variable antigen type composition of metacyclic trypanosome populations from the salivary glands of Glossina morsitans

Parasitology ◽  
1981 ◽  
Vol 83 (3) ◽  
pp. 595-607 ◽  
Author(s):  
S. L. Hajduk ◽  
Cathy R. Cameron ◽  
J. D. Barry ◽  
K. Vickerman
Keyword(s):  
Salivary Glands ◽  
Trypanosoma Brucei ◽  
Indirect Immunofluorescence ◽  
Antigenic Variation ◽  
Tsetse Flies ◽  
Glossina Morsitans ◽  
Type Composition ◽  
Variable Antigen ◽  
Monospecific Antisera

SUMMARYTsetse flies (Glossina morsitans) were fed on the blood of mice containing any one of 5 variable antigen types (VATs) of Trypanosoma brucei AnTAR 1 serodeme. The VATs of the metacyclic trypanosomes subsequently detected in the flies' saliva probes were investigated using monospecific antisera to AnTAR 1 VATs in indirect immunofluorescence and trypanolysis reactions; these sera included 3 raised against AnTats 1.6, 1.30 and 1.45, previously identified as components of the metacyclic population (M-VATs), and against the 5 VATs originally ingested by the flies. The percentage of metacyclics reacting with a particular M-VAT antiserum remained more or less constant (AnTat 1.6, 6·0–8·3%; AnTat 1.30, 13·7–18·2%; AnTat 1.45, 2·0–8·0%), regardless of the age of the fly or the ingested VAT. As these 3 VATs accounted for no more than 30% of the metacyclic population, the existence of at least one more VAT is envisaged. The ingested VAT could not be detected among the AnTAR 1 metacyclic trypanosomes.

Sleeping Sickness: In vitro Cultivation of Trypanosoma brucei from the Salivary Glands of Glossina morsitans

1978 ◽  
Vol 64 (6) ◽  
pp. 1039 ◽  
Author(s):  
M. Nyindo ◽  
M. Chimtawi ◽  
J. Owor ◽  
J. S. Kaminjolo ◽  
N. Patel ◽  
...  
Keyword(s):  
Salivary Glands ◽  
Trypanosoma Brucei ◽  
Sleeping Sickness ◽  
In Vitro Cultivation ◽  
Glossina Morsitans
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