Pseudonotohymena antarctica n. g., n. sp. (Ciliophora, Hypotricha), a New Species from Antarctic Soil

• Published in: Journal of Eukaryotic Microbiology
• Main Authors: Park, Kyung‐Min, Jung, Jae‐Ho, Min, Gi‐Sik, Kim, Sanghee
• Other Authors: Korea Polar Research Institute
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2016
• Subjects: Microbiology; Antarctic; King George Island; Antarc*; Antarctica
• Online Access: http://dx.doi.org/10.1111/jeu.12381; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjeu.12381; https://onlinelibrary.wiley.com/doi/pdf/10.1111/jeu.12381

Abstract A new soil ciliate, Pseudonotohymena antarctica n. g., n. sp., from King George Island, Antarctica, is described based on live observation, protargol impregnation, and its 18S rRNA gene. The new genus Pseudonotohymena is morphologically similar to the genus Notohymena Blatterer and Foissner in the following characteristics: 18 fronto‐ventral‐transverse cirri, a flexible body, undulating membranes, dorsomarginal kineties, and the number of cirri in the marginal rows. However, Pseudonotohymena differs from Notohymena particularly in the dorsal ciliature, that is, in possessing a nonfragmented dorsal kinety (vs. fragmented). In addition, the molecular phylogenetic relationship of the new species differs from that of Notohymena species. On the basis of the morphological features, the genetic data, and morphogenesis, we establish P. antarctica n. g., n. sp. In addition, the cyst morphology of this species is described.