Fungal diversity in deep-sea sediments associated with asphalt seeps at the Sao Paulo Plateau

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dc.citation.volume146
dc.contributor.authorNagano, Yuriko
dc.contributor.authorMiura, Toshiko
dc.contributor.authorNishi, Shinro
dc.contributor.authorLima, Andre O.
dc.contributor.authorNakayama, Cristina [UNIFESP]
dc.contributor.authorPellizari, Vivian H.
dc.contributor.authorFujikura, Katsunori
dc.coverageOxford
dc.date.accessioned2020-09-01T13:21:01Z
dc.date.available2020-09-01T13:21:01Z
dc.date.issued2017
dc.description.abstractWe investigated the fungal diversity in a total of 20 deep-sea sediment samples (of which 14 samples were associated with natural asphalt seeps and 6 samples were not associated) collected from two different sites at the Sao Paulo Plateau off Brazil by Ion Torrent PGM targeting ITS region of ribosomal RNA. Our results suggest that diverse fungi (113 operational taxonomic units (OTUs) based on clustering at 97% sequence similarity assigned into 9 classes and 31 genus) are present in deep-sea sediment samples collected at the Sao Paulo Plateau, dominated by Ascomycota (74.3%), followed by Basidiomycota (11.5%), unidentified fungi (7.1%), and sequences with no affiliation to any organisms in the public database (7.1%). However, it was revealed that only three species, namely Penicillium sp., Cadophora malorum and Rhodosporidiwn diobovatum, were dominant, with the majority of OTUs remaining a minor community. Unexpectedly, there was no significant difference in major fungal community structure between the asphalt seep and non-asphalt seep sites, despite the presence of mass hydrocarbon deposits and the high amount of macro organisms surrounding the asphalt seeps. However, there were some differences in the minor fungal communities, with possible asphalt degrading fungi present specifically in the asphalt seep sites. In contrast, some differences were found between the two different sampling sites. Classification of OTUs revealed that only 47 (41.6%) fungal OTUs exhibited >97% sequence similarity, in comparison with pre-existing ITS sequences in public databases, indicating that a majority of deep-sea inhabiting fungal taxa still remain undescribed. Although our knowledge on fungi and their role in deep-sea environments is still limited and scarce, this study increases our understanding of fungal diversity and community structure in deep-sea environments.en
dc.description.affiliationJapan Agcy Marine Earth Sci & Technol, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan
dc.description.affiliationUniv Vale Itajal, Dept Biol Sci, CTTMar, R Uruguai 458, BR-88302202 Itajal, SC, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Oceanog, 191 Praca Oceanog, BR-05508120 Sao Paulo, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipJapan Society for the Promotion of Science
dc.description.sponsorshipIDJSPS: 23770098
dc.description.sponsorshipIDJSPS: 15K18601
dc.format.extent59-67
dc.identifierhttp://dx.doi.org/10.1016/j.dsr2.2017.05.012
dc.identifier.citationDeep-Sea Research Part Ii-Topical Studies In Oceanography. Oxford, v. 146, p. 59-67, 2017.
dc.identifier.doi10.1016/j.dsr2.2017.05.012
dc.identifier.fileWOS000423245400009.pdf
dc.identifier.issn0967-0645
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/58050
dc.identifier.wosWOS:000423245400009
dc.language.isoeng
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofDeep-Sea Research Part Ii-Topical Studies In Oceanography
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDeep-seaen
dc.subjectFungien
dc.subjectIon torrenten
dc.subjectAsphalt seepen
dc.subjectSao Paulo Plateau, Shinkai 6500, lata-piuna cruiseen
dc.titleFungal diversity in deep-sea sediments associated with asphalt seeps at the Sao Paulo Plateauen
dc.typeinfo:eu-repo/semantics/article
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