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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
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E-ISSN : 2713-8615

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Vol.10 No.4

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Characterizations of five heterotrophic nanoflagellates newly recorded in Korea

Journal of Species Research / Journal of Species Research, (E)2713-8615
2021, v.10 no.4, pp.356-363
정동혁 (경북대학교)
박종수 (경북대학교)
정동혁, & 박종수. (2021). . Journal of Species Research, 10(4), 356-363.

Abstract

Heterotrophic nanoflagellates (HNFs, 2-20 μm in size) are substantially capable of controlling bacterial abundance in aquatic environments, and microbial taxonomists have studied ecologically important and abundant HNFs for a long time. However, the classifications of HNFs have rarely been reported in Korea on the basis of morphology and 18S rDNA sequencing. Here, previously reported five HNFs from non-Korean habitats were isolated from Korean coastal seawater or intertidal sediments for the first time. Light microscopic observations and 18S rDNA phylogenetic trees revealed that the five isolated species were Cafeteria burkhardae strain PH003, Cafeteria graefeae strain UL001, Aplanochytrium minuta (formerly Labyrinthuloides minuta) strain PH004, Neobodo curvifilus strain KM017 (formerly Procryptobia sorokini), and Ancyromonas micra (formerly Planomonas micra) strain IG005. Being morphologically and phylogenetically indistinct from its closest species, all isolates from Korea were therefore regarded as identical species detected in other countries. Thus, this result indicates an expansion of known habitats that range from those of the five isolates in natural ecosystems on Earth.

keywords
18S rDNA, classification, heterotrophic nanoflagellates, morphology

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