• Journal of Species Research
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• v.10 no.1
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• pp.63-71
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• 2021

Anteholosticha bergeri and Bakuella granulifera were isolated from soil samples collected from Muuidong and Songdo-dong, Incheon and confirmed new to South Korea. Including these two newly recorded species, 11 species of Anteholosticha and four species of Bakuella have been recorded in South Korea to date. Anteholosticha bergeri was discriminated from congeners by following characters: cortical granules, 12-16 macronuclei, 5-8 midventral pairs, 2-3 pretransverse cirri, 4-6 transverse cirri, and three dorsal kineties. Bakuella granulifera was identified by cortical granules, 5-11 buccal cirri, 2-5 frontoterminal cirri, 2-5 midventral cirri rows, and 8-12 transverse cirri. The Korean A. bergeri population corresponds to the Austrian population, except for the number of marginal and transverse cirri, and the Korean B. granulifera population corresponds to the Namibian population, except for body size. In addition, small subunit ribosomal RNA(18S rRNA) gene sequences from both species were determined.

• Animal Systematics, Evolution and Diversity
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• v.29 no.2
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• pp.144-151
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• 2013

Two marine hypotrichous ciliates, Anteholosticha petzi and Ponturostyla enigmatica, were collected from the Yellow Sea and the Korea Strait, respectively, and described using live observation and protargol-impregnated specimens. Furthermore, the nuclear small subunit ribosomal RNA gene of each was sequenced and compared to previously annotated sequences retrieved from the GenBank. Anteholosticha petzi is characterized by 3 frontal cirri (FC), 2 frontoterminal cirri (FTC), 8-12 transverse cirri (TC), 1 buccal cirrus (BC), 9-12 midventral pairs (MP), 3 bipolar dorsal kineties (DK), and 3 types of colorless cortical granules. Ponturostyla enigmatica is characterized by 8 FC, 5 ventral cirri (VC), 5-7 TC, 6-7 marginal rows (MR) on each side, 4 complete and 2-3 partial DK, and greenish cortical granules. This is the first identification and description of these 2 species, A. petzi and P. enigmatica, in South Korea.

• Animal Systematics, Evolution and Diversity
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• v.28 no.1
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• pp.20-28
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• 2012

Two urostylid ciliates, Anteholosticha pulchra (Kahl, 1932) Berger, 2003 and Metaurostylopsis struederkypkeae Shao et al., 2008, new to Korea, were collected from the Yellow Sea and the East Sea, Korea, respectively. They were identified based on live observation and protargol impregnation. Taxonomical characters of A. pulchra are as follows: $190-300{\times}30-55\;{\mu}m$ size in vivo; contractile vacuole located on the left side of the posterior 1/4 of the cell; spherical-reddish granules at cirral bases and around dorsal bristles, somewhat sparsely distributed throughout the cell surface; four frontal and two frontoterminal cirri; four dorsal kineties; caudal cirri absent. Metaurostylopsis struederkypkeae is characterized as follows: $80-110{\times}40-50\;{\mu}m$ size in vivo; caudal cirri absent; two types of cortical granules: type 1, yellow-green arranged along the ventral cirral rows and dorsal kineties; type 2, small and reddish, with an irregular arrangement; four frontal, four to eight frontoterminal, and two to six transverse cirri; five to seven left and three to five right marginal rows. Sequences of small subunit ribosomal DNA were determined from both species, and pairwise distances with their relatives were analyzed.

• Journal of Species Research
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• v.7 no.4
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• pp.291-314
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• 2018

We collected ciliates from terrestrial and aquatic habitats in Korea. Morphology was examined based on observations of both living and stained specimens. As a result of the observations, we found 24 previously unrecorded ciliate species to Korea. The morphology of these species are briefly described here: Tracheloraphis dracontoides, Condylostoma arenarium, Aspidisca steini, Australocirrus aspoecki, Sterkiella tricirrata, Stylonychia lemnae, Wallackia bujoreani, Bakuella marina, Anteholosticha sigmoidea, Holosticha pullaster, Urostyla grandis grandis, Chaenea vorax, Enchelys gasterosteus, Phialina salinarum, Mesodinium pulex, Aegyria oliva, Bryometopus pseudochilodon, Pinacocoleps tesselatus, Urozona buetschlii, Colpidium colpoda, Campanella umbellaria, Pseudovorticella difficilis, Zoothamnium parahiketes and Z. plumula. Among these 24 ciliates, S. tricirrata and U. grandis grandis were studied based on both the morphology and the morphogenesis.

• Journal of Species Research
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• v.7 no.4
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• pp.315-322
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• 2018

Based on morphological observation, we identified nine ciliates previously unrecorded in Korea, Euplotidium itoi Ito, 1958, Anteholosticha verrucosa (Foissner & Schade, 2000) Berger, 2008, Holostichides dumonti Foissner, 2000, Amphisiella australis Blatterer & Foissner, 1988, Terricirra matsusakai Berger & Foissner, 1989, Uroleptoides binucleatus binucleatus Hemberger, 1985, Uroleptoides magnigranulosus (Foissner, 1988) Berger, 2008, Leptopharynx costatus gonohymen Omar & Foissner, 2012, Pseudochilodonopsis mutabilis Foissner, 1981, from three sites in Korea, which were isolated from three environmental samples, consisting of one seawater and two soil samples. These ciliates were assigned to three classes, five orders, five families, and eight genera. In this study, we provide photographs and brief descriptions and remarks of the nine species.

• Journal of Species Research
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• v.9 no.3
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• pp.251-268
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• 2020

Ciliates are a speciose protozoan group and their diversity is still not well investigated in Korea. From our field surveys, 18 unrecorded ciliate species were collected from a total of nine localities in Korea. The field surveys were conducted in 2018 and 2019, and the unrecorded ciliates were found from terrestrial (moss and soil samples) and inland water (river and lagoon samples) habitats. The morphology of these ciliates was studied using the observation of living and silver impregnated (protargol) specimens. The present species belong to five classes as follows: 1) class Spirotrichea - Gonostomum kuehnelti, Quadristicha setigera, Lamtostyla decorata, L. islandica, L. longa, Anteholosticha brachysticha, Pseudobirojimia muscorum; 2) class Litostomatea - Apocoriplites lajacola, Epispathidium amphoriforme, Protospathidium muscicola, Phialinides australis, Paraenchelys wenzeli, Rimaleptus similis; 3) class Nassophorea - Drepanomonas revoluta; 4) class Colpodea - Bryometopus triquetrus; and 5) class Oligohymenophorea - Cyclidium glaucoma, Epistylis pygmaeum, Pseudovorticella vestita. The globular macronuclear nodules of P. vestita were observed for the first time in the Korean population.