Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea

Very few studies exist on the description of protozoan ciliates from industrially contaminated sites. In this study, we report a description of a novel hypotrich ciliate isolated from water samples collected from an industrially contaminated outlet in Onsan, Ulsan, South Korea. The oxytrichid ciliat...

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Autores principales:	Santosh Kumar, Daizy Bharti, Shahed Uddin Ahmed Shazib, Mann Kyoon Shin
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	contaminated waters Histriculus morphology morphogenesis phylogeny rRNA gene Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/ea7bb6d83380449782ff6e3ab7a9fa29
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spelling	oai:doaj.org-article:ea7bb6d83380449782ff6e3ab7a9fa292021-11-19T04:58:12ZCharacterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea1664-302X10.3389/fmicb.2021.761961https://doaj.org/article/ea7bb6d83380449782ff6e3ab7a9fa292021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.761961/fullhttps://doaj.org/toc/1664-302XVery few studies exist on the description of protozoan ciliates from industrially contaminated sites. In this study, we report a description of a novel hypotrich ciliate isolated from water samples collected from an industrially contaminated outlet in Onsan, Ulsan, South Korea. The oxytrichid ciliate, Histriculus tolerans n. sp., was investigated using live observation and protargol impregnation. The morphology, morphogenesis, and molecular phylogeny inferred from small-subunit (SSU) rRNA gene sequences were studied. The new species is mainly characterized by a cell size of about 70 × 40 μm in vivo, two elongate ellipsoidal macronuclear nodules and one or two micronuclei, adoral zone of about 51% of body length with 32 membranelles on average, about 34 cirri in the right and 24 cirri in the left marginal row, 18 frontoventral transverse cirri, six dorsal kineties including two dorsomarginal rows, and dorsal kinety 1 with 26 bristles. Morphogenesis is similar to that of the type species, i.e., Histriculus histrio, except that oral primordium does not contribute to anlage II of the proter. Phylogenetic analyses, based on small-subunit rRNA gene sequences, consistently place the new species within the family Oxytrichidae, clustering with H. histrio.Santosh KumarSantosh KumarDaizy BhartiDaizy BhartiShahed Uddin Ahmed ShazibMann Kyoon ShinFrontiers Media S.A.articlecontaminated watersHistriculusmorphologymorphogenesisphylogenyrRNA geneMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	contaminated waters Histriculus morphology morphogenesis phylogeny rRNA gene Microbiology QR1-502
spellingShingle	contaminated waters Histriculus morphology morphogenesis phylogeny rRNA gene Microbiology QR1-502 Santosh Kumar Santosh Kumar Daizy Bharti Daizy Bharti Shahed Uddin Ahmed Shazib Mann Kyoon Shin Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
description	Very few studies exist on the description of protozoan ciliates from industrially contaminated sites. In this study, we report a description of a novel hypotrich ciliate isolated from water samples collected from an industrially contaminated outlet in Onsan, Ulsan, South Korea. The oxytrichid ciliate, Histriculus tolerans n. sp., was investigated using live observation and protargol impregnation. The morphology, morphogenesis, and molecular phylogeny inferred from small-subunit (SSU) rRNA gene sequences were studied. The new species is mainly characterized by a cell size of about 70 × 40 μm in vivo, two elongate ellipsoidal macronuclear nodules and one or two micronuclei, adoral zone of about 51% of body length with 32 membranelles on average, about 34 cirri in the right and 24 cirri in the left marginal row, 18 frontoventral transverse cirri, six dorsal kineties including two dorsomarginal rows, and dorsal kinety 1 with 26 bristles. Morphogenesis is similar to that of the type species, i.e., Histriculus histrio, except that oral primordium does not contribute to anlage II of the proter. Phylogenetic analyses, based on small-subunit rRNA gene sequences, consistently place the new species within the family Oxytrichidae, clustering with H. histrio.
format	article
author	Santosh Kumar Santosh Kumar Daizy Bharti Daizy Bharti Shahed Uddin Ahmed Shazib Mann Kyoon Shin
author_facet	Santosh Kumar Santosh Kumar Daizy Bharti Daizy Bharti Shahed Uddin Ahmed Shazib Mann Kyoon Shin
author_sort	Santosh Kumar
title	Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
title_short	Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
title_full	Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
title_fullStr	Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
title_full_unstemmed	Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea
title_sort	characterization of a novel hypotrich ciliate from heavy metal-contaminated industrial outlet in onsan, ulsan, south korea
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ea7bb6d83380449782ff6e3ab7a9fa29
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Characterization of a Novel Hypotrich Ciliate From Heavy Metal-Contaminated Industrial Outlet in Onsan, Ulsan, South Korea

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