• 한국해양학회지:바다
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• 제10권1호
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• pp.19-30
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• 2005

강화도 장화리의 펄 갯벌에 서식하는 저서 원생동물 군집의 계절 분포 및 섭식률을 파악하기 위하여 2002년 4월부터 2004년 4월까지 총 3개의 정점을 선정하여 2-3개월 간격으로 조사를 수행하였다. 저서 원생동물의 현존량과 생물량은 섬모충류와 종속영양 편모류에 의해 98% 이상 우점하여 나타났으며, 그 외 종속영양 와편모류와 아메바 그룹이 일부 시기에 관찰되었으나 중요하지 않은 그룹으로 나타났다. 종속영양 편모류의 현존량과 탄소량은 각각 $0.2-5.9{\times}10^5\;cells\;cm^{-3}$와 $0.02-9.2\;{\mu}C\;cm^{-3}$로 분포하였으며, 생물량은 춘계와 추계에 비교적 높은 분포를 보였다. 종속영양 편모류는 표충 2.5 mm 이내에서 다른 층에 비해 높은 분포를 보였으며, 종속영양 편모류의 수평적 분포는 정점별로 차이가 없는 것으로 나타났다. 종속영양 편모류는 $10{\mu}m$이하의 크기에 의하여 주로 우점하여 나타났으나, 2월과 4월 사이에 $20{\mu}m$ 이상의 종속영양 유글레나가 높게 출현하였다 섬모충류의 현존량과 생물량은 각각 $0.1-17.8{\times}10^3\;cells\;cm^{-3}$와 $0.02-9.1\;{\mu}gC\;cm^{-3}$ 범위로 분포하였으며 춘계와 추계에 높은 분포를 보였다. 섬모충류 그룹은 주로 하모류에 의해 우점 하였으며, 계절별로 두드러진 우점 종들은 관찰되지 않았다. 섬모충류의 수직적 분포는 표층 2.5 mm이내에서 높은 분포를 보였으며, 정점별 분포는 조간대 상부 정점에 비해 조간대 하부 정점에서 높은 분포를 보였다. 섬모충류의 시.공간적 분포는 저서 미세조류의 생물량 분포와 유사한 양상을 보였다. 조사기간동안 저서 원생동물 그룹의 탄소량은 섬모충류에 의해 평균 66%의 높은 우점률을 보였으며, 저서 원생동물의 계절변동은 저서 미세조류의 변동과 유사한 양상을 보였다. 본 연구에서 저서 원생동물의 섭식률을 측정한 결과 박테리아 생산력과 저서 미세조류 생산력의 각각 13.4-40.7%와 20.1-36.4%를 제거하였으며, 박테리아에 대한 섭식률은 섬모충류에 비해 종속영양 편모류에 의해 더 높은 것으로 나타났다. 박테리아와 돌말류에 대한 저서 원생동물의 섭식률은 춘계에 가장 높았으며 저서 미세생물 먹이 망에서 저서 원생동물은 미세생물 군집의 생물량이 높은 춘계에 박테리아와 돌말류의 포식자로서 중요한 역할을 하고 있음을 시사하였다.

• 한국어병학회지
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• 제28권3호
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• pp.171-174
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• 2015

Previously, we had reported that some Miamiensis avidus, a major pathogen of scuticociliatosis in cultured olive flounder, strongly agglutinated by flounder immune sera could escape from the agglutinated mass within a few hours. In the present study, we observed that M. avidus not only escaped from the agglutinated mass but also conducted division(s) before shedding its old covering. Furthermore, ciliates that survived the antibody-dependent complement killing (ADCK) assay were not killed even when re-exposed to a freshly prepared ADCK assay. This result suggests that the liberated ciliates from the ADCK assay might change not only their i-antigen types but also the epitopes of major surface antigens, which debilitate antibody-mediated complement killing ability.

• Animal Systematics, Evolution and Diversity
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• 제29권2호
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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.

• Journal of Species Research
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• 제7권4호
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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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• 제7권4호
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• pp.323-332
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• 2018

Ten stichotrichid ciliates were identified from six environmental samples, consisting of one freshwater, two seawater, and three soil samples. Morphological assessments were performed based on observations of both living and stained specimens. These species were assigned to two orders, three families, and nine genera, and we provide photographs and brief descriptions and remarks for each species: Parabirojimia similis Hu et al., 2002, Arcuseries warreni (Song & Wilbert, 1997) Huang et al., 2014, Gonostomum lajacola Foissner, 2016, Paragonostomoides xianicum Wang et al., 2017, Australocirrus oscitans Blatterer & Foissner, 1988, Monomicrocaryon crassicirratum Foissner, 2016, Monomicrocaryon euglenivorum fimbricirratum Foissner, 2016, Notohymena rubescens Blatterer & Foissner, 1988, Sterkiella multicirrata Li et al., 2018, Stylonychia ammermanni ammermanni Gupta et al., 2001.

• Animal Systematics, Evolution and Diversity
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• 제25권3호
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• pp.227-236
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• 2009

Two stichotrichous ciliates, Amphisiella annulata (Kahl, 1928) and Pseudoamphisiella alveolata (Kahl, 1932), were collected from the Yellow Sea in Incheon, Korea and were identified as new to Korea. The main diagnostic key to the species of the genera are that the two species share the features of two macronuclear nodules, one marginal row per side, and transverse cirri. A. annulata is distinguishable from other members in the genus mainly due to the several ring-shaped (hollow) structures in its cytoplasm and its wide and narrowly arranged amphisiellid median cirral row. P. alveolata has a conspicuous alveolar layer and two conspicuous macronuclear nodules, but no frontoterminal cirri.

• Journal of Species Research
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• 제11권4호
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• pp.287-295
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• 2022

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.

• Journal of Species Research
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• 제12권1호
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• pp.95-108
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• 2023

Ciliates are unicellular eukaryotes and one of the most abundant and speciose protistan groups. However, their diversity is underestimated, and many new species are waiting for our discovery. During several field surveys conducted from 2018 to 2021 to document indigenous Korean ciliates, 10 unrecorded ciliate species were collected and investigated from freshwater, marine, and semiterrestrial habitats. The morphology of these species was studied based on observation of living and protargol-stained specimens. These species belong to five classes as follows: 1) class Heterotrichea - Peritromus faurei; 2) class Spirotrichea - Heterotachysoma dragescoi, Pseudokeronopsis parasongi, and Certesia quadrinucleata; 3) class Nassophorea - Chilodontopsis depressa; 4) class Prostomatea - Plagiocampa rouxi and Urotricha furcata; and 5) class Oligohymenophorea - Metanophrys similis, Uronema gallicum, and Protocyclidium citrullus. Also, we provide a brief diagnosis, photomicrographs, and information of the locality for each species. Further, we compare each species with the most recent description and with similar congeners.

• 한국환경생물학회:학술대회논문집
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• 한국환경생물학회 2001년도 학술대회
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• pp.76-77
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• 2001

• 한국미생물생명공학회:학술대회논문집
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• 한국미생물생명공학회 2003년도 2003 Annual Meeting, BioExhibition and International Symposium
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• pp.135-136
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• 2003