Importance of Hybrids of Meccus phyllosomus mazzottii, M. p. pallidipennis and M. p. phyllosomus in Transmission of Trypanosoma cruzi in Mexico.

Importance of Hybrids of Meccus phyllosomus mazzottii, M. p. pallidipennis and M. p. phyllosomus in Transmission of Trypanosoma cruzi in Mexico. Jpn J Infect Dis. 2015 Aug 7; Authors: Martínez-Ibarra JA, Nogueda-Torres B, García-Lino JC, Arroyo-Reyes D, Salazar-Montaño LF, Hernández-Navarro JÁ, Díaz-Sánchez CG, Toro-Arreola ES, Rocha-Chávez G Abstract Time lapse for beginning feeding, feeding time and defecation delay for three Triatominae subspecies, Meccus phyllosomus mazzottii, M. p. pallidipennis and M. p. phyllosomus and their laboratory hybrids were evaluated. The mean time lapse for beginning feeding was between 0.1 and 10.1 min for all nymphal instars in each cohort, with significant (P < 0.05) differences among hybrid and parental cohorts. Four (both MaPa and MaPhy) hybrid cohorts had similar mean feeding times to that recorded by one of their parental subspecies but shorter than the other one, whereas the remaining hybrid cohorts (both PaPhy) had longer feeding times than both of their parental subspecies. The specimens of the MaPa defecated slower than the respective instars on their parental subspecies, whereas the remained four hybrid cohorts (MaPhy and PaPhy) in most instars defecated faster than the respective instars of M. p. phyllosomus. Between 40% and 50% of defecation events occurred when feeding in MaPhy and PaPhy hybrid cohorts. Given these results, the hybrid cohorts showed to be more effective vecto...
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research