Plischuk Santiago, Antúnez Karina, Haramboure Marina, Minardi Graciela M, Lange Carlos E
Centro de Estudios Parasitológicos y de Vectores (CONICET - UNLP), La Plata, Argentina.
Instituto de Investigaciones Biológicas "Clemente Estable,", Montevideo, Uruguay.
Environ Microbiol Rep. 2017 Apr;9(2):169-173. doi: 10.1111/1758-2229.12520. Epub 2017 Feb 1.
An initial survey in 2009 carried out at a site in northwestern Patagonia region, Argentina, revealed for the first time in South America the presence of the flagellate Crithidia bombi and the neogregarine Apicystis bombi, two pathogens associated with the Palaearctic invasive bumble bee Bombus terrestris. In order to determine the long-term persistence and dynamics of this microparasite complex, four additional collections at the same site (San Carlos de Bariloche) were conducted along the following seven years. Both protists were detected in all collections: prevalence was 2%-21.6% for C. bombi and 1.2%-14% for A. bombi. In addition, the microsporidium Nosema bombi was recorded for the first time in the country in the last two collections, at prevalences of 12.4% and 2.4% and unusually high infection intensities (Average = 6.56 × 10 spores per individual). Due to the exceptional dispersal ability of the exotic B. terrestris, these three multihost pathogens should be considered as potential threats to South American native bumble bees.
2009年在阿根廷巴塔哥尼亚地区西北部的一个地点进行的初步调查首次在南美洲发现了鞭毛虫克氏蜂虱蝇和新簇虫蜂簇虫，这两种病原体与古北区入侵性熊蜂西方熊蜂有关。为了确定这种微寄生虫复合体的长期持续性和动态变化，在接下来的七年里，在同一地点（圣卡洛斯-德巴里洛切）又进行了四次采集。在所有采集中都检测到了这两种原生生物：克氏蜂虱蝇的感染率为2%至21.6%，蜂簇虫的感染率为1.2%至14%。此外，微孢子虫熊蜂微孢子虫在该国最近的两次采集中首次被记录，感染率分别为12.4%和2.4%，且感染强度异常高（平均每个个体有6.56×10个孢子）。由于外来西方熊蜂具有特殊的扩散能力，这三种多宿主病原体应被视为对南美本土熊蜂的潜在威胁。
