Department of Parasitology, Charles University in Prague, Viničná 7, 128 44 Prague, Czech Republic.
Parasitology. 2012 Jan;139(1):92-102. doi: 10.1017/S0031182011001624. Epub 2011 Sep 26.
Despite the fact that the non-human primates are our closest relatives and represent a species-rich mammalian group, little is known about their intestinal protistan parasites/commensals. Particularly, the intestinal trichomonads represent a neglected part of the fauna of the primate digestive system. We have established 30 trichomonad strains isolated from feces of 11 primate species kept in 3 Czech zoos and performed an analysis of their SSU rDNA and ITS1-5·8S rDNA-ITS2. Our results showed that intestinal trichomonads are rather common among non-human primates. Molecular phylogenetic analysis showed that the strains are unexpectedly diversified, belonging to 8 or 9 distinct species. Interestingly, the vast majority of the strains from non-human primates belonged to the genus Tetratrichomonas while no member of this genus has been found in the human intestine so far. In addition, hominoid and non-hominoid primates differed in their intestinal trichomonads. Our results suggest that captive primates possibly may be infected by intestinal trichomonads of other vertebrates such as pigs, cattle, birds, tortoises and lizards.
尽管非人类灵长类动物是我们最亲近的亲戚，代表了一个物种丰富的哺乳动物群体，但人们对它们的肠道原生动物寄生虫/共生体知之甚少。特别是肠道滴虫代表了灵长类动物消化系统动物群中被忽视的一部分。我们从捷克的 3 个动物园中饲养的 11 种灵长类动物的粪便中分离出了 30 株滴虫，并对其 SSU rDNA 和 ITS1-5·8S rDNA-ITS2 进行了分析。我们的研究结果表明，肠道滴虫在非人类灵长类动物中相当常见。分子系统发育分析表明，这些菌株出乎意料地多样化，属于 8 或 9 个不同的种。有趣的是，绝大多数来自非人类灵长类动物的菌株属于 Tetratrichomonas 属，而迄今为止尚未在人类肠道中发现该属的任何成员。此外，人科动物和非人类灵长类动物的肠道滴虫不同。我们的研究结果表明，圈养的灵长类动物可能会感染来自其他脊椎动物的肠道滴虫，如猪、牛、鸟、龟和蜥蜴。
