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Zygomycetes in Vesicular Basanites from Vesteris Seamount, Greenland Basin - A New Type of Cryptoendolithic Fungi
Swedish Museum of Natural History.
University of Vienna, Vienna, Austria.
wedish Museum of Natural History.
Stockholm University.
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2015 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 10, no 7, e0133368Article in journal (Refereed) Published
Abstract [en]

Fungi have been recognized as a frequent colonizer of subseafloor basalt but a substantial understanding of their abundance, diversity and ecological role in this environment is still lacking. Here we report fossilized cryptoendolithic fungal communities represented by mainly Zygomycetes and minor Ascomycetes in vesicles of dredged volcanic rocks (basanites) from the Vesteris Seamount in the Greenland Basin. Zygomycetes had not been reported from subseafloor basalt previously. Different stages in zygospore formation are documented in the studied samples, representing a reproduction cycle. Spore structures of both Zygomycetes and Ascomycetes are mineralized by romanechite-like Mn oxide phases, indicating an involvement in Mn(II) oxidation to form Mn(III, VI) oxides. Zygospores still exhibit a core of carbonaceous matter due to their resistance to degradation. The fungi are closely associated with fossiliferous marine sediments that have been introduced into the vesicles. At the contact to sediment infillings, fungi produced haustoria that penetrated and scavenged on the remains of fragmented marine organisms. It is most likely that such marine debris is the main carbon source for fungi in shallow volcanic rocks, which favored the establishment of vital colonies.

Place, publisher, year, edition, pages
2015. Vol. 10, no 7, e0133368
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:sh:diva-28164DOI: 10.1371/journal.pone.0133368ISI: 000358198200062PubMedID: 26181773ScopusID: 2-s2.0-84941368555OAI: oai:DiVA.org:sh-28164DiVA: diva2:850411
Funder
Swedish Research Council, 2012-4364
Available from: 2015-09-01 Created: 2015-09-01 Last updated: 2015-10-01Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf