AI Article Synopsis
- Coastal sediments contain organic carbons that can be converted into methane, and this study investigated the gas and chemical composition of deep sediment cores from Hangzhou Bay.
- The researchers analyzed the prokaryotic community using 16S rRNA gene sequencing, finding a strong link between methane levels and certain sediment characteristics.
- Metagenomic analysis revealed 27 draft genomes from various microbial groups, enhancing our understanding of how microbial communities influence methane production in marine sediments.
Article Abstract
Coastal sediments are rich in embedded recalcitrant organic carbons that are biotransformed into methane. In this study, gas composition (carbon dioxide, methane and nitrogen) and chemical indicators (total nitrogen, total carbon, and total sulfate) were examined in five deep sediment cores (up to 130 m in length) obtained from the Hangzhou Bay. The V3-V4 region of the 16S rRNA gene amplicons was amplified and sequenced for the prokaryotic community analysis. The species composition, along with the physicochemical factors of the sediments, revealed a strong correlation with methane content in one of the sediment cores. We then obtained metagenomes of the two sediment samples selected for their high methane content and enrichment of methanogenic Bathyarchaeota with phylogenetic evidence. A total of 27 draft genomes were retrieved through metagenomic binning methodologies and were classified into Bathyarchaeota, Asgard archaea, Planctomycetes, and other microbial groups. The data provided are valuable for understanding the relationship between methane generation and microbial community composition in deep sediment core samples from coastal to marine environments.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11437075 | PMC |
| http://dx.doi.org/10.1038/s41597-024-03889-7 | DOI Listing |
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