Department of Organismic Biology, University of Salzburg, Hellbrunnerstrasse 34, A-5020, Salzburg, Austria.
J Eukaryot Microbiol. 2013 Mar-Apr;60(2):137-57. doi: 10.1111/jeu.12016. Epub 2013 Jan 24.
Glaucomides bromelicola n. gen., n. sp. is a tetrahymenid ciliate common in tank bromeliads of Central and South America. The new genus is characterized by having a kinety fragment along the left mouth margin, an unciliated dorsolateral area, a tetrahymenid silverline pattern, and the ability to produce macrostomes when bacterial food is depleted. I provide a detailed description of the microstome and the macrostome morph, using several morphological methods. This showed that G. bromelicola does not belong to the Glaucomidae, but to the Bromeliophryidae. However, various morphological traits are highly similar to those of Glaucoma reniformis and G. scintillans, which are thus redescribed and compared with G. bromelicola. Most differences are inconspicuous, showing that new tetrahymenids must be described very carefully. The morphological and molecular data suggest a common ancestor for Glaucoma and Glaucomides, both performing their own radiation, the former in ordinary limnetic habitats, the latter in tank bromeliads.
龙舌兰根滴虫新属新种，是一种常见于中美洲和南美洲水箱凤梨中的四膜目纤毛虫。新属的特征是在左侧口缘有一个纤毛带片段、一个无纤毛的背外侧区域、四膜目银线图案以及在细菌食物耗尽时能够产生大膜泡的能力。我使用多种形态学方法详细描述了微膜泡和大膜泡形态。这表明龙舌兰根滴虫不属于根滴虫科，而是属于凤梨科。然而，各种形态特征与肾形根滴虫和闪烁根滴虫非常相似，因此对这两种虫进行了重新描述，并与龙舌兰根滴虫进行了比较。大多数差异并不明显，表明必须非常小心地描述新的四膜目纤毛虫。形态学和分子数据表明，根滴虫和龙舌兰根滴虫有共同的祖先，两者都在进行自己的辐射，前者在普通的淡水生境中，后者在水箱凤梨中。
