Multiple archaeal groups mediate methane oxidation in anoxic cold seep sediments
Pennsylvania State University · Monterey Bay Aquarium Research Institute · +2 more institutions
Abstract
No microorganism capable of anaerobic growth on methane as the sole carbon source has yet been cultivated. Consequently, information about these microbes has been inferred from geochemical and microbiological observations of field samples. Stable isotope analysis of lipid biomarkers and rRNA gene surveys have implicated specific microbes in the anaerobic oxidation of methane (AOM). Here we use combined fluorescent in situ hybridization and secondary ion mass spectrometry analyses, to identify anaerobic methanotrophs in marine methane-seep sediments. The results provide direct evidence for the involvement of at least two distinct archaeal groups (ANME-1 and ANME-2) in AOM at methane seeps. Although both…
Citation impact
- FWCI
- 23.85
- Percentile
- 100%
- References
- 30
Authors
5- VJVictoria J. OrphanCorresponding
Pennsylvania State University, Monterey Bay Aquarium Research Institute, University of California, Los Angeles, Woods Hole Oceanographic Institution
- CHChristopher H. House
Pennsylvania State University, Monterey Bay Aquarium Research Institute, University of California, Los Angeles, Woods Hole Oceanographic Institution
- KHKai‐Uwe Hinrichs
Pennsylvania State University, Monterey Bay Aquarium Research Institute, University of California, Los Angeles, Woods Hole Oceanographic Institution
- KDK. D. McKeegan
Pennsylvania State University, Monterey Bay Aquarium Research Institute, University of California, Los Angeles, Woods Hole Oceanographic Institution
- EFEdward F. DeLong
Pennsylvania State University, Monterey Bay Aquarium Research Institute, University of California, Los Angeles, Woods Hole Oceanographic Institution
Topics & keywords
- Archaea
- Anaerobic oxidation of methane
- Biology
- Euryarchaeota
- Methane
- Cold seep
- Anoxic waters
- Microorganism
- Life below water