SAMN38289418
External Id
BEN GURION UNIVERSITY
INSDC center name
2023-11-17T00:00:00Z
INSDC first public
2023-12-05T15:21:00.340Z
INSDC last update
live
INSDC status
MIMAG.sediment
NCBI submission model
MIMAG.sediment.6.0
NCBI submission package
ERS17305728
SRA accession
2021-03-10
collection_date
25-40 cm
depth
This Methylomonas MAG was obtained from enriched of methanogenic lake Kinneret sediments. Sediments were exposed to repeated injection of 1% oxygen and high methane concentrations to enrich this methanotroph while monitoring oxygen depletion. We explored the genetic mechanisms that may facilitate survival in hypoxic environments predicted by the metagenome-assembled genomes (MAGs) of five LK-enriched Methylococcales and conducted a metabolic comparison with an additional 62 Methylococcales MAGs previously curated from various environments. This comparative analysis suggests the prevalence of various mechanisms to hypoxia across Methylococcales MAGs, including strategies such as high-affinity cytochrome bd, oxygen binding proteins, fermentation-based methane oxidation, motility, glycogen utilization, and alternative electron acceptors. These last ones include the possibility of using nitrate, nitrite, nitrous oxide, and potentially metals and humic substances as electron acceptors through outer membrane multi-heme cytochromes, Type I secretion system, or secretion of Riboflavins. These mechanisms may enable methanotrophs to inhabit ecological niches previously considered unsuitable for their growth.
description
missing
elev
Reduced methanogenic lake sediments
env_broad_scale
subtropical
env_local_scale
sediments
env_medium
1
environmental-sample
Israel
geo_loc_name
MAG 41
isolate
reduced methanogenic lake sediments
isolation_source
32.50 N 35.35 E
lat_lon
sediment metagenome
metagenome-source
1
metagenomic
Methylomonas sp.
http://purl.obolibrary.org/obo/NCBITaxon_418
organism
metagenomic assembly
sample-type
MIMAG Metagenome-assembled Genome sample from Methylomonas sp.
title