Developmental and reproductive patterns of Triatoma brasiliensis infected with Trypanosoma cruzi under laboratory conditions

Evaluation of RbCl and CrCl3 as markers of Triatoma brasiliensis (Hemiptera: Reduviidae) nymphs: persistence and influence of Rb and Cr on triatomine biology

“…With the exception of N2, the time spent by Crmarked triatomines in each moulting stage was statistically similar to controls and in laboratory controlled experiments that measured this variable (Oliveira et al 2010). The difference observed only in N2 individuals is difficult to explain.…”

Effects of Infection by Trypanosoma cruzi and Trypanosoma rangeli on the Reproductive Performance of the Vector Rhodnius prolixus

“…In order to measure the impact of parasite infections authors have evaluated parameters such as blood feeding capacity, duration of development, adult longevity, fecundity, fertility and mating performance. Moreover, effects of T. cruzi infection on triatomine fitness have been studied in Panstrongylus megistus (Burmeister, 1835) [23] and Triatoma brasiliensis Neiva, 1911 [22], both reared around 30°C. In the first study, infected P. megistus presented a significant decrease both in their fecundity and fertility [23].…”

“…with unlimited food) [18], injure intestinal tissues [19] or even affect populations of symbionts [20]. There have, though, been some reports of alterations in developmental parameters [21], [22] and reproduction [23] of infected insects, depending on the parasite strain and the conditions to which insects were submitted, while some authors also suggest that the parasite may influence wing morphology [24] and dispersion patterns [25].…”

Rhodnius prolixus Life History Outcomes Differ when Infected with Different Trypanosoma cruzi I Strains

“…15,[21][22][23][24][25][26][27] Investigations into the effect of T. cruzi infection on other triatomine species have yielded variable results, with some results suggesting that T. cruzi reduces triatomine survival and or reproduction, [28][29][30][31][32] and others finding little to no effect. [33][34][35] Although some of the discrepancies may be due to differences in experimental conditions or design, it is also possible that the inherent variability of T. cruzi itself is a driver of the variable fitness outcomes in infected triatomines, as it is in its mammal hosts. To the best of our knowledge, this has not been tested, as all published studies on the effect of T. cruzi on triatomines have been limited to one T. cruzi strain-I triatomine species system.…”

“…To the best of our knowledge, this has not been tested, as all published studies on the effect of T. cruzi on triatomines have been limited to one T. cruzi strain-I triatomine species system. 15,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] Given that a principle focus in Chagas disease prevention is the interruption of T. cruzi transmission by triatomine bugs living in and around human homes, it is important to understand the full range of outcomes that trypanosome infection can have on triatomines. Therefore, we asked, does variability exist in the effect of different T. cruzi strains on its triatomine host?…”