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HOME > J. Microbiol > Volume 58(10); 2020 > Article
Journal Article
Fungal diversity in deep-sea sediments from Magellan seamounts environment of the western Pacific revealed by high-throughput Illumina sequencing
Shuai Yang 1, Wei Xu 1, Yuanhao Gao 1, Xiaoyao Chen 4, Zhu-Hua Luo 1,2,3
Journal of Microbiology 2020;58(10):841-852.
DOI: https://doi.org/10.1007/s12275-020-0198-x
Published online: September 2, 2020
1Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen 361005, P. R. China, 2Co-Innovation Center of Jiangsu Marine Bioindustry Technology, Jiangsu Ocean University, Lianyungang 222005, P. R. China, 3School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, P. R. China, 4Monotoring Center of Fishery Resources, Fujian Province, Fuzhou 350003, P. R. China
Corresponding author:  Zhu-Hua Luo ,
Received: 13 April 2020   • Revised: 14 July 2020   • Accepted: 21 July 2020
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Abstract

There are lots of seamounts globally whose primary production is disproportionally greater than the surrounding areas. Compared to other deep-sea environments, however, the seamounts environment is relatively less explored for fungal diversity. In the present study, we explored the fungal community structure in deep-sea sediments from four different stations of the Magellan seamounts environment by using high-throughput sequencing of the ITS1 region. A total of 1,897,618 ITS1 sequences were obtained. Among these sequences, fungal ITS1 sequences could be clustered into 1,662 OTUs. The majority of these sequences belonged to Ascomycota. In the genera level, the most abundant genus was Mortierella (4.79%), which was reported as a common fungal genus in soil and marine sediments, followed by Umbelopsis (3.80%), Cladosporium (2.98%), Saccharomycopsis (2.53%), Aspergillus (2.42%), Hortaea (2.36%), Saitozyma (2.20%), Trichoderma (2.12%), Penicillium (2.11%), Russula (1.86%), and Verticillium (1.40%). Most of these recovered genera belong to Ascomycota. The Bray-Curtis analysis showed that there was 37 to 85% dissimilarity of fungal communities between each two sediment samples. The Principal coordinates analysis clearly showed variations in the fungal community among different sediment samples. These results suggested that there was a difference in fungal community structures not only among four different sampling stations but also for different layers at the same station. The depth and geographical distance significantly affect the fungal community, and the effect of depth and geographical distance on the structure of the fungal community in the Magellan seamounts is basically same. Most of the fungi were more or less related to plants, these plant parasitic/symbiotic/endophytic fungi constitute a unique type of seamounts environmental fungal ecology, different from other marine ecosystems.

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    Fungal diversity in deep-sea sediments from Magellan seamounts environment of the western Pacific revealed by high-throughput Illumina sequencing
    J. Microbiol. 2020;58(10):841-852.   Published online September 2, 2020
    DOI: https://doi.org/10.1007/s12275-020-0198-x
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