Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea

In January 2019, epilithic diatoms were collected from two streams on Mount Gumdan and Mount Yongma near Lake Paldang in central South Korea. A total of 16 diatoms were isolated and classified by molecular and morphological analysis. Morphology was studied by LM and SEM, while the molecular study fo...

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Main Authors: Eun-A Hwang, Ha-Kyung Kim, In-Hwan Cho, Chen Yi, Baik-Ho Kim
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/10/790
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author Eun-A Hwang
Ha-Kyung Kim
In-Hwan Cho
Chen Yi
Baik-Ho Kim
author_facet Eun-A Hwang
Ha-Kyung Kim
In-Hwan Cho
Chen Yi
Baik-Ho Kim
author_sort Eun-A Hwang
collection DOAJ
description In January 2019, epilithic diatoms were collected from two streams on Mount Gumdan and Mount Yongma near Lake Paldang in central South Korea. A total of 16 diatoms were isolated and classified by molecular and morphological analysis. Morphology was studied by LM and SEM, while the molecular study focused on small subunit (SSU) rRNA and ribulose bisphosphate carboxylase (rbcL) genes. Molecular analysis showed that the three species had clear differences in phylogenetic distance. Based on these findings, we studied the ultrastructure of three species. Among the morphological characteristics, <i>Hannaea librata</i> is longer but narrower and always has conical spines, while the similar species <i>H. pamirensis</i> has bifurcated spines in the central region and conical spines near the pole. <i>Gomphonema seminulum</i> is wider in the axial–central area than <i>G. pumilium</i>. <i>Nitzschia inclinata</i> has a bended valve apex, while <i>N. oligotraphenta</i> has a straight apex.
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spelling doaj.art-ad3436684e45489285e94f814232cce02023-11-23T23:47:42ZengMDPI AGDiversity1424-28182022-09-01141079010.3390/d14100790Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South KoreaEun-A Hwang0Ha-Kyung Kim1In-Hwan Cho2Chen Yi3Baik-Ho Kim4Department of Environmental Science, Hanyang University, Seoul 04763, KoreaDepartment of Environmental Science, Hanyang University, Seoul 04763, KoreaDepartment of Environmental Science, Hanyang University, Seoul 04763, KoreaDepartment of Environmental Science, Hanyang University, Seoul 04763, KoreaDepartment of Environmental Science, Hanyang University, Seoul 04763, KoreaIn January 2019, epilithic diatoms were collected from two streams on Mount Gumdan and Mount Yongma near Lake Paldang in central South Korea. A total of 16 diatoms were isolated and classified by molecular and morphological analysis. Morphology was studied by LM and SEM, while the molecular study focused on small subunit (SSU) rRNA and ribulose bisphosphate carboxylase (rbcL) genes. Molecular analysis showed that the three species had clear differences in phylogenetic distance. Based on these findings, we studied the ultrastructure of three species. Among the morphological characteristics, <i>Hannaea librata</i> is longer but narrower and always has conical spines, while the similar species <i>H. pamirensis</i> has bifurcated spines in the central region and conical spines near the pole. <i>Gomphonema seminulum</i> is wider in the axial–central area than <i>G. pumilium</i>. <i>Nitzschia inclinata</i> has a bended valve apex, while <i>N. oligotraphenta</i> has a straight apex.https://www.mdpi.com/1424-2818/14/10/790<i>Hannaea</i><i>Gomphonema</i><i>Nitzschia</i>morphologyphylogeny treetaxonomy
spellingShingle Eun-A Hwang
Ha-Kyung Kim
In-Hwan Cho
Chen Yi
Baik-Ho Kim
Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
Diversity
<i>Hannaea</i>
<i>Gomphonema</i>
<i>Nitzschia</i>
morphology
phylogeny tree
taxonomy
title Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
title_full Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
title_fullStr Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
title_full_unstemmed Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
title_short Morphological and Molecular Studies of Three New Diatom Species from Mountain Streams in South Korea
title_sort morphological and molecular studies of three new diatom species from mountain streams in south korea
topic <i>Hannaea</i>
<i>Gomphonema</i>
<i>Nitzschia</i>
morphology
phylogeny tree
taxonomy
url https://www.mdpi.com/1424-2818/14/10/790
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AT inhwancho morphologicalandmolecularstudiesofthreenewdiatomspeciesfrommountainstreamsinsouthkorea
AT chenyi morphologicalandmolecularstudiesofthreenewdiatomspeciesfrommountainstreamsinsouthkorea
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