气候变化领域集成服务门户(CCPortal): Carbonate-hosted microbial communities are prolific and pervasive methane oxidizers at geologically diverse marine methane seep sites

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DOI	10.1073/pnas.2006857118
	Carbonate-hosted microbial communities are prolific and pervasive methane oxidizers at geologically diverse marine methane seep sites
	Marlow J.J.; Hoer D.; Jungbluth S.P.; Reynard L.M.; Gartman A.; Chavez M.S.; El-Naggar M.Y.; Tuross N.; Orphan V.J.; Girguis P.R.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:25
英文摘要	At marine methane seeps, vast quantities of methane move through the shallow subseafloor, where it is largely consumed by microbial communities. This process plays an important role in global methane dynamics, but we have yet to identify all of the methane sinks in the deep sea. Here, we conducted a continental-scale survey of seven geologically diverse seafloor seeps and found that carbonate rocks from all sites host methane-oxidizing microbial communities with substantial methanotrophic potential. In laboratory-based mesocosm incubations, chimney-like carbonates from the newly described Point Dume seep off the coast of Southern California exhibited the highest rates of anaerobic methane oxidation measured to date. After a thorough analysis of physicochemical, electrical, and biological factors, we attribute this substantial metabolic activity largely to higher cell density, mineral composition, kinetic parameters including an elevated Vmax, and the presence of specific microbial lineages. Our data also suggest that other features, such as electrical conductance, rock particle size, and microbial community alpha diversity, may influence a sample’s methanotrophic potential, but these factors did not demonstrate clear patterns with respect to methane oxidation rates. Based on the apparent pervasiveness within seep carbonates of microbial communities capable of performing anaerobic oxidation of methane, as well as the frequent occurrence of carbonates at seeps, we suggest that rock-hosted methanotrophy may be an important contributor to marine methane consumption. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Methane oxidation \| metabolic rates \| endolith \| methane seep
语种	英语
scopus关键词	carbonic acid; methane; anaerobic oxidation of methane; Article; atmospheric pressure; biology; California; carbonate rock; cell density; chemical composition; chemical reaction kinetics; controlled study; electric conductance; kinetic parameters; marine environment; marine methane seep site; maximum reaction velocity; mesocosm; metabolism; methane oxidizer; methanotrophic bacterium; microbial community; microbial community alpha diversity; microbial diversity; mineral composition; nonhuman; organisms by metabolism; oxidation; particle size; physical chemistry; rock
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238510
作者单位	Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States; Department of Energy, Joint Genome Institute, Walnut Creek, CA 94720, United States; Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States; US Geological Survey Pacific Coastal and Marine Science Center, Santa Cruz, CA 95060, United States; Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089, United States; Department of Chemistry, University of Southern California, Los Angeles, CA 90089, United States; Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Marlow J.J.,Hoer D.,Jungbluth S.P.,et al. Carbonate-hosted microbial communities are prolific and pervasive methane oxidizers at geologically diverse marine methane seep sites[J],2021,118(25).
APA	Marlow J.J..,Hoer D..,Jungbluth S.P..,Reynard L.M..,Gartman A..,...&Girguis P.R..(2021).Carbonate-hosted microbial communities are prolific and pervasive methane oxidizers at geologically diverse marine methane seep sites.Proceedings of the National Academy of Sciences of the United States of America,118(25).
MLA	Marlow J.J.,et al."Carbonate-hosted microbial communities are prolific and pervasive methane oxidizers at geologically diverse marine methane seep sites".Proceedings of the National Academy of Sciences of the United States of America 118.25(2021).