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A marine microbial consortium apparently mediating anaerobic oxidation of methane.
Nature. 2000 Oct 05; 407(6804):623-6.Nat

Abstract

A large fraction of globally produced methane is converted to CO2 by anaerobic oxidation in marine sediments. Strong geochemical evidence for net methane consumption in anoxic sediments is based on methane profiles, radiotracer experiments and stable carbon isotope data. But the elusive microorganisms mediating this reaction have not yet been isolated, and the pathway of anaerobic oxidation of methane is insufficiently understood. Recent data suggest that certain archaea reverse the process of methanogenesis by interaction with sulphate-reducing bacteria. Here we provide microscopic evidence for a structured consortium of archaea and sulphate-reducing bacteria, which we identified by fluorescence in situ hybridization using specific 16S rRNA-targeted oligonucleotide probes. In this example of a structured archaeal-bacterial symbiosis, the archaea grow in dense aggregates of about 100 cells and are surrounded by sulphate-reducing bacteria. These aggregates were abundant in gas-hydrate-rich sediments with extremely high rates of methane-based sulphate reduction, and apparently mediate anaerobic oxidation of methane.

Authors+Show Affiliations

Max Planck Institute for Marine Microbiology, Bremen, Germany. aboetius@mpi-bremen.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

11034209

Citation

Boetius, A, et al. "A Marine Microbial Consortium Apparently Mediating Anaerobic Oxidation of Methane." Nature, vol. 407, no. 6804, 2000, pp. 623-6.
Boetius A, Ravenschlag K, Schubert CJ, et al. A marine microbial consortium apparently mediating anaerobic oxidation of methane. Nature. 2000;407(6804):623-6.
Boetius, A., Ravenschlag, K., Schubert, C. J., Rickert, D., Widdel, F., Gieseke, A., Amann, R., Jørgensen, B. B., Witte, U., & Pfannkuche, O. (2000). A marine microbial consortium apparently mediating anaerobic oxidation of methane. Nature, 407(6804), 623-6.
Boetius A, et al. A Marine Microbial Consortium Apparently Mediating Anaerobic Oxidation of Methane. Nature. 2000 Oct 5;407(6804):623-6. PubMed PMID: 11034209.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A marine microbial consortium apparently mediating anaerobic oxidation of methane. AU - Boetius,A, AU - Ravenschlag,K, AU - Schubert,C J, AU - Rickert,D, AU - Widdel,F, AU - Gieseke,A, AU - Amann,R, AU - Jørgensen,B B, AU - Witte,U, AU - Pfannkuche,O, PY - 2000/10/18/pubmed PY - 2000/10/21/medline PY - 2000/10/18/entrez SP - 623 EP - 6 JF - Nature JO - Nature VL - 407 IS - 6804 N2 - A large fraction of globally produced methane is converted to CO2 by anaerobic oxidation in marine sediments. Strong geochemical evidence for net methane consumption in anoxic sediments is based on methane profiles, radiotracer experiments and stable carbon isotope data. But the elusive microorganisms mediating this reaction have not yet been isolated, and the pathway of anaerobic oxidation of methane is insufficiently understood. Recent data suggest that certain archaea reverse the process of methanogenesis by interaction with sulphate-reducing bacteria. Here we provide microscopic evidence for a structured consortium of archaea and sulphate-reducing bacteria, which we identified by fluorescence in situ hybridization using specific 16S rRNA-targeted oligonucleotide probes. In this example of a structured archaeal-bacterial symbiosis, the archaea grow in dense aggregates of about 100 cells and are surrounded by sulphate-reducing bacteria. These aggregates were abundant in gas-hydrate-rich sediments with extremely high rates of methane-based sulphate reduction, and apparently mediate anaerobic oxidation of methane. SN - 0028-0836 UR - https://www.unboundmedicine.com/medline/citation/11034209/A_marine_microbial_consortium_apparently_mediating_anaerobic_oxidation_of_methane_ L2 - https://doi.org/10.1038/35036572 DB - PRIME DP - Unbound Medicine ER -