Martínez-Ibarra J A, Nogueda-Torres B, González E Paredes, Alejandre-Aguilar R, Solorio-Cibrián M, Barreto S P, Gómez-Estrada H I, Trujillo-García J C
Area de Entomología Médica, Centro Universitario del Sur, Universidad de Guadalajara, Colón S/N, Ciudad Guzmán, Jalisco, México.
J Am Mosq Control Assoc. 2005 Sep;21(3):310-5. doi: 10.2987/8756-971X(2005)21[310:DOTRST]2.0.CO;2.
The objective of this study was to determine some of the most important bionomic parameters related to the capacity of transmission of Trypanosoma cruzi and to estimate the potential transmission capacity and role of 3 groups of recent colonized Mexican Triatoma barberi, T. rubida sonoriana, and Meccus (formerly Triatoma) mazzottii in the prevalence of Chagas disease cases based on the distribution area of each species. Among the studied Triatominae species, the life cycle was shorter in T. r. sonoriana and longer in T. barberi, by as much as 4 times. The 1st and 5th instars had the highest rates of mortality in most of the studied species. Statistically significant shorter duration of feeding of instars was observed for T. r. sonoriana and longer duration was found for M. mazzottii when the species were compared. The mean number of blood meals per nymphal stadium was statistically greater in T. barberi than in T. r. sonoriana and M. mazzottii. Triatoma r. sonoriana and M. mazzotti had shorter defecation delay than in T. barberi and the delay was uniform in all instars. Most of the studied parameters showed that T. r. sonoriana and M. mazzotti could have an important potential role in the prevalence of Chagas disease cases where these species are commonly found.
本研究的目的是确定一些与克氏锥虫传播能力相关的最重要的生物学参数，并根据每种物种的分布区域，估计墨西哥最近定殖的3组巴氏锥蝽、索诺拉红带锥蝽和马佐蒂梅氏锥蝽（原锥蝽属）在恰加斯病病例流行中的潜在传播能力和作用。在所研究的锥蝽亚科物种中，索诺拉红带锥蝽的生命周期较短，巴氏锥蝽的较长，相差多达4倍。在大多数研究物种中，一龄和五龄若虫的死亡率最高。比较这些物种时，观察到索诺拉红带锥蝽若虫的取食持续时间在统计学上显著较短，而马佐蒂梅氏锥蝽的取食持续时间较长。巴氏锥蝽若虫期每龄的平均吸血次数在统计学上高于索诺拉红带锥蝽和马佐蒂梅氏锥蝽。索诺拉红带锥蝽和马佐蒂梅氏锥蝽的排便延迟比巴氏锥蝽短，且在所有龄期都一致。大多数研究参数表明，在常见索诺拉红带锥蝽和马佐蒂梅氏锥蝽的地区，它们在恰加斯病病例的流行中可能具有重要的潜在作用。
