Results 251 to 260 of about 23,150 (276)

Effects of the infection with Trypanosoma cruzi on the feeding and excretion/defecation patterns of Triatoma infestans

Bulletin of entomological research, 2019
Transmission of Trypanosma cruzi (Kinetoplastida: Trypanosomatidae) occurs when feces/urine of infected triatomines come into contact with mucous membranes or damaged skin, and this occurs mainly when insects defecate while feeding on the host. Thus, the
N. Pereyra, P. Lobbia, G. Mougabure-Cueto   +2 more
semanticscholar   +1 more source

The biting rate of Triatoma infestans in Argentina

Medical and Veterinary Entomology, 1991
Abstract. The daily proportion of fed individuals in a population of the reduviid bug Triatoma infestans (Klug), maintained under natural climatic conditions in experimental chicken houses in central Argentina, was estimated from the proportion of bugs retaining colourless urine in the rectum.
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Kinetics of expression of the salivary apyrases in Triatoma infestans

Insect Biochemistry and Molecular Biology, 2004
Apyrases are nucleoside triphosphate-diphosphohydrolases that remove Pi from ATP and ADP. The blood feeding reduviid Triatoma infestans, which transmits the Trypanosoma cruzi agent of Chagas disease to animals and man, presents in its salivary glands five apyrases with molecular masses of 88, 82, 79, 68 and 67 kDa.
Faudry, Eric, Rocha, Priscila, Vernet, Thierry, Lozzi, Silene, Teixeira, Antonio R.L.   +4 more
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Antigenic components in Triatoma infestans haemolymph

Journal of Insect Physiology, 1972
Abstract Immunoelectrophoretic experiments were made of the antigenic composition of Triatoma infestans haemolymph, taking instar and feeding into consideration. Haemolymph from adult male insects against antiserum to haemolymph of T. infestans, revealed between 14 and 17 antigenic components.
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Cuticular hydrocarbons of Triatoma infestans and T. mazzotti

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1993
1. 1. The cuticular hydrocarbons of Triatoma infestans and Triatoma mazzotti were examined by capillary gas-chromatography-mass spectrometry (CGC-MS). 2. 2. Hydrocarbons from both insects contained complex mixtures of n-alkanes, terminally and internally branched monomethylalkanes, dimethylalkanes and trimethylalkanes. 3. 3. T.
Gary J. Blomquist, Patricia Juárez
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The intestine of Triatoma infestans. I. Cytology of the midgut

Journal of Ultrastructure Research, 1976
The midgut of starved Triatoma infestans was studied by light and electron microscopy. The apical border of the intestinal cells shows microvilli in a regular array and a peculiar peritrophic membrane that forms tube like compartments around and upon the microvilli. The other cellular components are similar to those found in other hematophagus insects.
Mario H. Burgos, Luis S. Gutiérrez
openaire   +3 more sources

Repellency of deet to nymphs of Triatoma infestans

Medical and Veterinary Entomology, 2000
SummaryThe repellency of N,N‐diethyl‐3‐methylbenzamide (deet) to Triatoma infestans (Klug) (Hemiptera: Reduviidae) was evaluated using third‐instar nymphs and a video tracking technique. Three experimental designs were used: (a) the test arena floor was divided into two halves, only one of which was treated with deet; (b) the arena floor was divided ...
Eduardo Nicolás Zerba, Raúl Adolfo Alzogaray, Andrea Fontán   +2 more
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Neurogenesis and occurrence of cholinesterase in eggs of Triatoma infestans

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1980
Abstract 1. Eggs of T. infestans incubated at 30°C and 50% r.h. hatched in 15 days. 2. The neurogenesis of T. infestans embryo was studied. The neuroblasts appeared on the third day and the nerve cells on the fourth day. 3. The ontogenesis of cholinesterases was investigated.
E. Wood, M.I.P. de Villar, S.A. de Licastro, E.N. Zerba   +3 more
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Density-dependent timing of defaecation by Triatoma infestans

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1991
Defaecation timing of the Triatominae vectors of Trypanosoma cruzi directly affects the transmission probability of Chagas disease to mammal hosts. Experimental studies with fifth instar nymphs of Triatoma infestans showed that defaecation time was negatively affected by blood meal size and positively affected by starvation period and bug initial ...
D. E. Gorla, E.V. Trumper
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Similarity of the patterns of sensilla on the antennae of Triatoma melanosoma and Triatoma infestans

Annals of Tropical Medicine & Parasitology, 2001
The patterns of sensilla on the antennae of sylvatic Triatoma melanosoma Lent, Jurberg, Galvao and Carcavallo 1994 were compared with those of three samples of Triatoma infestans (Klug 1834) - one of domestic populations in Paraguay, Bolivia, Argentina and Chile, one of the sylvatic 'dark morph' from the Bolivian Chaco, and one from sylvatic sites in ...
S. Catalá, M. Torres
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