| type of rectal contents and infectivity of domiciliary populations of triatoma infestans (hemiptera: reduviidae) in argentina. | different types of rectal content in domiciliary populations of triatoma infestans (hemiptera: reduviidae: triatominae) were associated with differences in the degree of infection with trypanosoma (schizotrypanum) cruzi. field studies were carried out in a region of argentina (cordoba) where chagas' disease is endemic. the rectal contents of domiciliary t. infestans were classified by color (clear, yellow, or brown) and the number of infective metacyclic stages of t. cruzi. the seasonal percenta ... | 1995 | 7650696 |
| isolation of beauveria bassiana (bals.) vuill. (deuteromycotina: hyphomycetes) from the chagas disease vector, triatoma infestans (hemiptera: reduviidae) in argentina. | a survey for natural entomopathogenic fungi of the chagas disease vector triatoma infestans was conducted in five provinces of argentina since 2001. nymphs (1.5%) and adults (3.3%) infected with a strain of the fungus beauveria bassiana were found at dean funes, cordoba province, argentina. field collected insects that died in the laboratory were maintained in moist chambers and incubated at 22 degrees c. beauveria bassiana from infected insects was cultured on sday media. pathogenicity tests we ... | 2005 | 15883724 |
| short report: variation in mitochondrial 12s and 16s ribosomal dna sequences in natural populations of triatoma infestans (hemiptera: reduviidae). | mitochondrial dna sequences of the 12s and 16s ribosomal rna genes were analyzed in five natural populations of the chagas' disease vector triatoma infestans from argentina. dna sequence comparisons of 878 basepairs (12s plus 16s) revealed 13 haplotypes. a total of 10 private haplotypes were found in four of the populations analyzed, suggesting low current levels of genetic exchange. the levels of genetic differentiation between the population of chancaní (córdoba) and other two of the populatio ... | 2003 | 12887028 |