Zygomycetes in Vesicular Basanites from Vesteris Seamount, Greenland Basin - A New Type of Cryptoendolithic Fungi

Ivarsson, Magnus (author): Naturhistoriska riksmuseet,Enheten för paleobiologi,Swedish Museum of Natural History

Peckmann, J (author): Naturhistoriska riksmuseet,Enheten för paleobiologi,University of Vienna, Vienna, Austria

Tehler, Anders, 1947- (author): Naturhistoriska riksmuseet,Enheten för botanik,wedish Museum of Natural History

Broman, Curt (author): Stockholms universitet,Institutionen för geologiska vetenskaper

Bottcher, M.E (author): Leibniz Institute for Baltic Sea Research (IOW), Warnemünde, Germany

(creator_code:org_t)

Related links:: https://nrm.diva-por... (primary) (Raw object); show more...; https://doi.org/10.1...; http://www.ncbi.nlm....; https://doi.org/10.1...; https://urn.kb.se/re...; https://urn.kb.se/re...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Abstract Subject headings

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 (basa- nites) 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.

NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)

By the author/editor: Ivarsson, Magnus; Peckmann, J; Tehler, Anders, ...; Broman, Curt; Bach, W; Behrens, K; show more...; Reitner, J; Bottcher, M.E; Norbäck Ivarsson ...; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Biological Syste ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

By the university: Swedish Museum of Natural History; Södertörn University; Stockholm University

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