Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems

In this study, sediments from whale-fall chemosynthetic ecosystems (two different sites, one naturally occurring at 4200 m water depth in South Atlantic Ocean and one artificially immersed at 100 m water depth in Kagoshima Bay, Japan) were investigated by Ion Torrent PGM sequencing of the ITS region...

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Main Authors: Yuriko Nagano, Toshiko Miura, Taishi Tsubouchi, Andre O. Lima, Masaru Kawato, Yoshihiro Fujiwara, Katsunori Fujikura
Format: Article
Language:English
Published: Taylor & Francis Group 2020-07-01
Series:Mycology
Subjects:
Online Access:http://dx.doi.org/10.1080/21501203.2020.1799879
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author Yuriko Nagano
Toshiko Miura
Taishi Tsubouchi
Andre O. Lima
Masaru Kawato
Yoshihiro Fujiwara
Katsunori Fujikura
author_facet Yuriko Nagano
Toshiko Miura
Taishi Tsubouchi
Andre O. Lima
Masaru Kawato
Yoshihiro Fujiwara
Katsunori Fujikura
author_sort Yuriko Nagano
collection DOAJ
description In this study, sediments from whale-fall chemosynthetic ecosystems (two different sites, one naturally occurring at 4200 m water depth in South Atlantic Ocean and one artificially immersed at 100 m water depth in Kagoshima Bay, Japan) were investigated by Ion Torrent PGM sequencing of the ITS region of ribosomal RNA to reveal fungal communities in these unique marine environments. As a result, a total of 107 (897 including singletons) Operational Taxonomic Units (OTUs) were obtained from the samples explored. Composition of the 107 OTUs at the phylum level among the five samples from two different whale-fall sites was assigned to Ascomycota (46%), Basidiomycota (7%), unidentified fungi (21%), non-fungi (10%), and sequences with no affiliation to any organisms in the public database (No-match) (16%). The high detection of the unidentified fungi and unassigned fungi was revealed in the whale-fall environments in this study. Some of these unidentified fungi are allied to early diverging fungi and they were more abundant in the sediments not directly in contact with whalebone. This study suggests that a cryptic fungal community exists in unique whale-fall ecosystems.
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spelling doaj.art-0baf27f14e684726b810a08e9fe0b7392022-12-22T01:53:02ZengTaylor & Francis GroupMycology2150-12032150-12112020-07-0111326327810.1080/21501203.2020.17998791799879Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystemsYuriko Nagano0Toshiko Miura1Taishi Tsubouchi2Andre O. Lima3Masaru Kawato4Yoshihiro Fujiwara5Katsunori Fujikura6Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)Agriculture and FisheriesPublic University Corporation Osaka City University (OCU)University of Vale do Itajaí (UNIVALI)Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC)In this study, sediments from whale-fall chemosynthetic ecosystems (two different sites, one naturally occurring at 4200 m water depth in South Atlantic Ocean and one artificially immersed at 100 m water depth in Kagoshima Bay, Japan) were investigated by Ion Torrent PGM sequencing of the ITS region of ribosomal RNA to reveal fungal communities in these unique marine environments. As a result, a total of 107 (897 including singletons) Operational Taxonomic Units (OTUs) were obtained from the samples explored. Composition of the 107 OTUs at the phylum level among the five samples from two different whale-fall sites was assigned to Ascomycota (46%), Basidiomycota (7%), unidentified fungi (21%), non-fungi (10%), and sequences with no affiliation to any organisms in the public database (No-match) (16%). The high detection of the unidentified fungi and unassigned fungi was revealed in the whale-fall environments in this study. Some of these unidentified fungi are allied to early diverging fungi and they were more abundant in the sediments not directly in contact with whalebone. This study suggests that a cryptic fungal community exists in unique whale-fall ecosystems.http://dx.doi.org/10.1080/21501203.2020.1799879early diverging fungiion torrentkagoshima baymarine environmentsão paulo ridgewhalebone
spellingShingle Yuriko Nagano
Toshiko Miura
Taishi Tsubouchi
Andre O. Lima
Masaru Kawato
Yoshihiro Fujiwara
Katsunori Fujikura
Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
Mycology
early diverging fungi
ion torrent
kagoshima bay
marine environment
são paulo ridge
whalebone
title Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
title_full Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
title_fullStr Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
title_full_unstemmed Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
title_short Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems
title_sort cryptic fungal diversity revealed in deep sea sediments associated with whale fall chemosynthetic ecosystems
topic early diverging fungi
ion torrent
kagoshima bay
marine environment
são paulo ridge
whalebone
url http://dx.doi.org/10.1080/21501203.2020.1799879
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