Deciphering cryptic methane cycling: Coupling of methylotrophic ...
Jun 1, 2021 · Methanogenesis has recently been shown to fuel anaerobic oxidation of methane (AOM) within the sulfate-reducing zone of marine sediments, coining the term “cryptic methane cycle”. Here we present research on the relationship between methanogenesis and AOM in a shallow hypersaline pool (∼130 PSU) within a southern California coastal wetland.
Mineralogical control on methylotrophic methanogenesis and …
May 17, 2022 · Here we investigate the link between adsorption and remineralisation of MAs during the recently discovered cryptic methane cycle in marine surface sediments 11,12 in which methylotrophic ...
Microbial mediation of cryptic methane cycle in semiclosed …
Our research casts light on the cryptic methane cycle mediated by the novel microbiome that controls the release of greenhouse gases from marine geographic depressions exemplified by YBH, offering valuable insights into mitigating climate change effects in marine environments.
Cryptic CH4 cycling in the sulfate–methane transition of marine ...
Sep 7, 2018 · Detailed radiotracer experiments showed that up to 60% of the organic matter oxidation within the SMT first produced methane, which was concurrently oxidized to CO 2 by sulfate reduction. This...
Frontiers | Cryptic Methane-Cycling by Methanogens During …
Mar 17, 2022 · We examined 16S rRNA gene amplicon libraries and metatranscriptomes in microcosms of anoxic sediment from the White Oak River estuary, NC, with three destructively sampled replicates with methane added (586-day incubations) and three re-sampled un-amended replicates (895-day incubations).
Methylotrophic methanogenesis fuels cryptic methane cycling …
Feb 9, 2018 · From this observation, we conclude that a cryptic CH 4 cycling takes place at low CH 4 concentrations in the sulfate-rich marine surface sediment (Xiao et al. 2017). The CH 4 turnover rates were generally much lower compared to those in the main methanogenic zone below the sulfate-methane transition zone (Parkes et al. 2007 ; Flury et al. 2016 ...
Spatial evidence of cryptic methane cycling and methylotrophic ...
Jul 16, 2024 · In this study we present evidence of cryptic methane cycling activity within the sulfate-reducing zone, along a land-ocean transect within the Carpinteria Salt Marsh Reserve (CSMR), Carpinteria, CA, USA consisting of four stations; …
Jul 16, 2024 · sediment has recently been coupled to anaerobic oxidation of methane (AOM), now referred to as the cryptic methane cycle. In this study we present evidence of cryptic methane cycling activity within the sulfate-reducing zone, along a …
Methane production in this cryptic cycle is dominated by methylotrophic methanogenesis using small, methylated OC compounds like monomethylamine (MMA), dimethylamine (DMA) and trimethylamine...
Methylotrophic methanogenesis fuels cryptic methane cycling in …
In this study, we incubated sediment from Aarhus Bay (Denmark) with 13C labeled CH₄ to measure total methane turnover by isotope dilution, and with 14C-radiotracers to measure specifically the gross hydrogenotrophic and acetoclastic methane production.