Morphology and molecular phylogeny of Monomicrocaryon trimarginalis sp. nov. (Ciliophora, Hypotricha), a new soil ciliate species from South Korea

By

Chae, Kyu-Seok
Min, Gi-Sik
Park, Kyung-Min

Type

Article

Date of Publication

2025-11-5

Original Publication

ZooKeys

Volume

1258

Pages

174--187

Subjects

Ciliate , Oxytrichidae , SSU rRNA gene , taxonomy , terrestrial

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1258.168452

 

Abstract

<br> The morphology and molecular phylogeny of the new soil ciliate,<br> Monomicrocaryon trimarginalis<br> sp. nov.<br> , which was discovered in the soil of from Gwangdeok Mountain, Hwacheon-Gun, South Korea, were investigated. The new species is characterized by the following morphological features: cell ellipsoidal to slightly ovate, with both ends rounded; cortical granules absent; 17–24 adoral membranelles; three frontal cirri; four frontoventral cirri, two postoral ventral cirri; one buccal cirrus; 10–13 left and 9–13 right marginal cirri; five transverse cirri; four dorsal kineties and three dorsomarginal kineties; two macronuclear nodules and one micronucleus in between macronuclear nodules. Phylogenetic analyses showed that<br> M. trimarginalis<br> sp. nov.<br> is placed within a clade containing<br> M. euglenivorum euglenivorum<br> and species belonging to<br> Quadristicha<br> in the dorsomarginalian hypotrichs.<br>