Journal of Tropical Oceanography >
Progress of anaerobic oxidation of methane by archaea in the cold seep of deep Sea
Copy editor: LIN Qiang
Received date: 2021-01-08
Request revised date: 2021-01-19
Online published: 2021-01-22
Supported by
Natural Science Foundation of Guangdong Province(2019B1515120066)
National Natural Science Foundation of China(31870100)
Copyright
Anaerobic oxidation of methane (AOM) by archaea in marine sediments is gradually recognized by scientists and is regarded as an important biogeochemical process performed by both methanotrophic archaea and sulfate-reducing bacteria. Our analysis of 16S rRNA showed that multiple kinds of Methanoarchaea including AEME-1, AEME-2 and AEME-3 were the players in the AOM process, and these Methanoarchaea were distributed widely in the oxygen minimum zone of the open ocean. Furthermore, AOM process is related to the global environmental change closely. Most methane leaked from cold seeps of deep sea was consummated by Methanoarchaea in the course of penetrating the deposition layer of anoxic zone; so emission of strong greenhouse methane was reduced greatly. The studies of AOM biogeochemical process should be significant for understanding the formation mechanism of clod seep carbonate, controlling the leaking methane from seafloor, exploitation of combustible ice, and so on.
Key words: anaerobic oxidation of methane (AOM); archaea; clod seeps; methane leaking
HONG Yiguo , WU Jiapeng . Progress of anaerobic oxidation of methane by archaea in the cold seep of deep Sea[J]. Journal of Tropical Oceanography, 2021 , 40(3) : 76 -82 . DOI: 10.11978/YG2020012
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