Clay B, Kugrens P
Department of Biology, Colorado State University, Fort Collins 80523, USA.
Protist. 1999 Mar;150(1):43-59. doi: 10.1016/S1434-4610(99)70008-8.
The colorless flagellate Kathablepharis has consisted of five species based on light microscopic studies, and the ultrastructure of the type species, Kathablepharis phoenikoston, is described for the first time. The heterotrophic, marine flagellate Leucocryptos consisted of two species, but additional ultrastructural details for one of these, Kathablepharis remigera comb. nov. (= Leucocryptos remigera Vørs), indicates that it should be transferred to Kathablepharis. The cellular structure of these two species is similar to previously studied kathablepharids. However, there is variation in the feeding apparatus and cytoskeleton. The feeding apparatus of both species has a cytostome, a cytostomal ring, and cytopharyngeal rings. The cytoskeleton consists of inner microtubular arrays and outer or sub-pellicular microtubular arrays. In addition, several features of the flagellar apparatus are described for K. phoenikoston and K. remigera. The ultrastructure of these two species is compared with other kathablepharids to evaluate their taxonomy and phylogeny. We classify Kathablepharis and Leucocryptos in the family Kathablepharididae incertae sedis.
基于光学显微镜研究，无色鞭毛虫Kathablepharis已被划分为五个物种，本文首次描述了模式种Phoenikoston Kathablepharis的超微结构。异养型海洋鞭毛虫Leucocryptos包含两个物种，但其中之一Remigera Kathablepharis（新组合，= Leucocryptos remigera Vørs）的更多超微结构细节表明它应被归入Kathablepharis属。这两个物种的细胞结构与之前研究过的Kathablepharis属鞭毛虫相似。然而，它们的摄食器官和细胞骨架存在差异。这两个物种的摄食器官都有一个胞口、一个胞口环和咽环。细胞骨架由内部微管阵列和外部或表膜下微管阵列组成。此外，还描述了Phoenikoston Kathablepharis和Remigera Kathablepharis鞭毛器的几个特征。将这两个物种的超微结构与其他Kathablepharis属鞭毛虫进行比较，以评估它们的分类学和系统发育关系。我们将Kathablepharis属和Leucocryptos属归入分类地位不确定的Kathablepharididae科。
