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  Detection of coenzyme F430 in deep sea sediments: A key molecule for biological methanogenesis

Takano, Y., Kaneko, M., Kahnt, J., Imachi, H., Shima, S., & Ohkouchi, N. (2013). Detection of coenzyme F430 in deep sea sediments: A key molecule for biological methanogenesis. Organic Geochemistry, 58, 137-140. doi:10.1016/j.orggeochem.2013.01.012.

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 Creators:
Takano, Y., Author
Kaneko, M., Author
Kahnt, Jörg1, Author              
Imachi, H., Author
Shima, Seigo2, Author              
Ohkouchi, N., Author
Affiliations:
1Department of Ecophysiology, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266280              
2Department-Independent Research Group Microbial Protein Structure, Max Planck Institute for Terrestrial Microbiology, Max Planck Society, ou_3266277              

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 Abstract: We report the presence of coenzyme factor 430 (F430), a prosthetic group of methyl coenzyme M reductase for archaeal methanogenesis, in the deep sub-seafloor biosphere. At 106.7 m depth in sediment collected off Shimokita Peninsula, northwestern Pacific, its concentration was estimated to be at least 40 fmol g sediment−1 (i.e. 36 pg g−1 wet sediment). This is about three orders of magnitude lower than typical concentrations of archaeal intact polar lipids in similar sub-seafloor sediments. On the basis of the concentration of F430 in methanogens and conversion to biomass composed of typical sub-seafloor microbial cells, we estimated that ca. 2 × 106 cells g−1 could be methanogens in the deeply buried marine sediment.

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Language(s): eng - English
 Dates: 2013-05
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 676821
ISI: 000318684200015
DOI: 10.1016/j.orggeochem.2013.01.012
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Title: Organic Geochemistry
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 58 Sequence Number: - Start / End Page: 137 - 140 Identifier: ISSN: 0146-6380
CoNE: https://pure.mpg.de/cone/journals/resource/954925474428