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New record of three oxytrichid ciliates (Ciliophora: Oxytrichidae) from South Korea

  • Kyu-Seok, Chae (Department of Biological Sciences and Bioengineering, Inha University) ;
  • Gi-Sik, Min (Department of Biological Sciences and Bioengineering, Inha University)
  • Received : 2022.01.13
  • Accepted : 2022.08.16
  • Published : 2022.11.30

Abstract

Three oxytrichid ciliates, Oxytricha lithofera Foissner, 2016, Pleurotricha curdsi (Shi et al., 2002) Gupta et al., 2003 and Sterkiella tetracirrata Kumar et al., 2015, were isolated from soils and confirmed as new to South Korea. Oxytricha lithofera was identified based on lithosomes, cortical granules, 21-33 adoral zone membranelles, one left (14-21 cirri) and one right (15-18) marginal rows and 5 transverse cirri. Pleurotricha curdsi was identified based on the possession of 2 macronuclear nodules, 2-3 micronuclei, 46-53 adoral zone membranelles, 3 frontal cirri, 5 frontoventral cirri, 5-7 postoral ventral cirri, 2-3 right marginal rows and 5 transverse cirri. Sterkiella tetracirrata was identified with respect 4 macronuclear nodules, 3-6 micronuclei, 25-40 adoral zone membranelles, 3 frontal cirri, 3 postoral ventral cirri, 2 pretransverse cirri, one left (21-30 cirri) and one right (24-30) marginal row and 4 transverse cirri. On the basis of 18S rDNA sequence analyses, we describe the phylogenetic positions of the three species.

Keywords

Acknowledgement

This work was supported by a grant from the National Institute of Biological Resources(NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR202002204, NIBR202028201).

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