Institute of Zoology, Biocenter Cologne, University of Cologne, Zuelpicher Straße 47b, 50674 Cologne, Germany.
Institute of Zoology, Biocenter Cologne, University of Cologne, Zuelpicher Straße 47b, 50674 Cologne, Germany.
Eur J Protistol. 2021 Aug;80:125808. doi: 10.1016/j.ejop.2021.125808. Epub 2021 Jun 24.
Percolomonads are common freshwater, marine and hypersaline tetraflagellated organisms. Current phylogenetic analyses of eukaryotes comprise only two species of this underinvestigated family. Here, we studied the morphology, salinity tolerance and 18S rDNA gene-based phylogeny of seven percolomonad cultures. We describe three new genera and five novel species of Percolomonadida based on phylogenetic distances and morphological characteristics: Barbelia atlantica, B. abyssalis, Lula jakobsenorum, Nakurumonas serrata and Percolomonas doradorae. The new species show features typical for percolomonads, one long flagellum for skidding, three shorter flagella of equal length and a ventral feeding groove. The new species comprise organisms living in marine and athalassic hypersaline waters with salinity ranging from 10 to 150 PSU. Based on these novel taxa, the taxonomy and phylogeny of Percolatea was extended and further resolved.
渗透变形菌是一种常见的淡水、海洋和高盐度的四鞭毛生物。目前对真核生物的系统发育分析仅包含这一研究较少的科的两个种。在这里，我们研究了七种渗透变形菌培养物的形态、耐盐性和基于 18S rDNA 基因的系统发育。根据系统发育距离和形态特征，我们描述了三个新的渗透变形菌目属和五个新种：大西洋巴氏菌、深渊巴氏菌、雅各布森氏卢拉菌、锯齿奈库鲁莫纳菌和多拉多氏渗透变形菌。新种表现出渗透变形菌的典型特征，一个用于滑动的长鞭毛，三个等长的较短鞭毛和一个腹侧取食沟。新种包括生活在海洋和亚盐度高盐水中的生物，盐度范围为 10 至 150 PSU。基于这些新的分类单元，进一步扩展和解决了渗透变形菌的分类和系统发育。
