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Article | Open Access

Fungal diversity in deep-sea sediments from the Magellan seamounts as revealed by a metabarcoding approach targeting the ITS2 regions

Ye Luoa, Xu Weia, Shuai Yanga, Yuan-Hao Gaoa, Zhu-Hua Luoa,b,c( )
Key Laboratory of Marine Biogenetic Resources, Ministry of Natural Resources, Third Institute of Oceanography, Xiamen, PR China
School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, PR China
Co-Innovation Center of Jiangsu Marine Bioindustry Technology, Jiangsu Ocean University, Lianyungang, PR China
Show Author Information

Abstract

Recent reports have revealed diverse and abundant fungal communities in the deep-sea biosphere, while their composition, distribution, and variations in seamount zones are poorly understood. Using a metabarcoding approach targeting the ITS2 regions, we present the structure of the fungal community in 18 sediment samples from the Magellan seamount area of the northwest Pacific.

A total of 1,979 fungal OTUs was obtained, which were taxonomically assigned to seven phyla, 17 classes, 43 orders, 7 families, and 98 genera. The majority of these OTUs were affiliated to Basidiomycota (873 OTUs, 44.11% of total OTUs) and Ascomycota (486 OTUs, 24.56% of total OTUs), followed by other five minor phyla (Mortierellomycota, Chytridiomycota, Mucoromycota, Glomeromycota, and Monoblepharidomycota). Sordriomycetes is the most abundant class, followed by Eurotiomycetes, and Dothideomycetes. Five genera were common in most of the samples, including worldwide reported genera Aspergillus, Cladosporium, Fusarium, Chaetomium, and Penicillium. The environmental data we collected (sampling depth, sampling location latitude and longitude, organic carbon content, and organic nitrogen content in the sediment) had no significant influence on the composition and distribution of fungal communities. Our findings provide valuable information for understanding the distribution and potential ecological functions of fungi in the deep-sea sediments of the Magellan seamounts.

Keywords

high-throughput sequencingenvironmental factorsfungal diversityDeep-sea sedimentseamount area

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Mycology
Volume 11 Issue 3,
September 2020
Pages 214-229
DOI: 10.1080/21501203.2020.1799878
Cite this article:
Luo Y, Wei X, Yang S, et al. Fungal diversity in deep-sea sediments from the Magellan seamounts as revealed by a metabarcoding approach targeting the ITS2 regions. Mycology, 2020, 11(3): 214-229. https://doi.org/10.1080/21501203.2020.1799878

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Received: 16 January 2020
Accepted: 03 July 2020
Published: 02 August 2020
© 2020 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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