ArticleFrontiers in microbiology2017
Influence of Igneous Basement on Deep Sediment Microbial Diversity on the Eastern Juan de Fuca Ridge Flank.
Article in Frontiers in microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Distribution of methane-cycling archaea in buried ridge flank sediment: community zonation, activity, and potential environmental drivers.Frontiers in microbiology · 2025Article
- Ubiquitous microbial contaminants associated with scientific ocean drilling.Access microbiology · 2025Article
- Life strategies for Aminicenantia in subseafloor oceanic crust.The ISME journal · 2023Article
- Anthropogenic activities mediate stratification and stability of microbial communities in freshwater sediments.Microbiome · 2023Article
- First shotgun metagenomics study of Juan de Fuca deep-sea sediments reveals distinct microbial communities above, within, between, and below sulfate methane transition zones.Frontiers in microbiology · 2023Article
- Atlantic Salmon (Microorganisms · 2022Article
- Article
- Spatially resolved correlative microscopy and microbial identification reveal dynamic depth- and mineral-dependent anabolic activity in salt marsh sediment.Environmental microbiology · 2021Article
- Roles of Organohalide-RespiringmSystems · 2020Article
- Microbial Residents of the Atlantis Massif's Shallow Serpentinite Subsurface.Applied and environmental microbiology · 2020Article
- Habitability of the marine serpentinite subsurface: a case study of the Lost City hydrothermal field.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2020Article
- Subseafloor life and its biogeochemical impacts.Nature communications · 2019Review
- Microbial Selection and Survival in Subseafloor Sediment.Frontiers in microbiology · 2019Article
- Ecology of Subseafloor Crustal Biofilms.Frontiers in microbiology · 2019Article
- Influence of 16S rRNA Hypervariable Region on Estimates of Bacterial Diversity and Community Composition in Seawater and Marine Sediment.Frontiers in microbiology · 2019Article
- Sediment Microbial Communities Influenced by Cool Hydrothermal Fluid Migration.Frontiers in microbiology · 2018Article
- Low Energy Subsurface Environments as Extraterrestrial Analogs.Frontiers in microbiology · 2018Review
- Identification and Removal of Contaminant Sequences From Ribosomal Gene Databases: Lessons From the Census of Deep Life.Frontiers in microbiology · 2018Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microbial communities living in deeply buried sediment may be adapted to long-term energy limitation as they are removed from new detrital energy inputs for thousands to millions of years. However, sediment layers near the underlying oceanic crust may receive inputs from below that influence microbial community structure and/or activity. As part of the Census of Deep Life, we used 16S rRNA gene tag pyrosequencing on DNA extracted from a spectrum of deep sediment-basement interface samples from the subsurface of the Juan de Fuca Ridge flank (collected on IODP Expedition 327) to examine this possible basement influence on deep sediment communities. This area experiences rapid sedimentation, with an underlying basaltic crust that hosts a dynamic flux of hydrothermal fluids that diffuse into the sediment. Chloroflexi sequences dominated tag libraries in all sediment samples, with variation in the abundance of other bacterial groups (e.g., Actinobacteria, Aerophobetes, Atribacteria, Planctomycetes, and Nitrospirae). These variations occur in relation to the type of sediment (clays versus carbonate-rich) and the depth of sample origin, and show no clear connection to the distance from the discharge outcrop or to basement fluid microbial communities. Actinobacteria-related sequences dominated the basalt libraries, but these should be viewed cautiously due to possibilities for imprinting from contamination. Our results indicate that proximity to basement or areas of seawater recharge is not a primary driver of microbial community composition in basal sediment, even though fluids diffusing from basement into sediment may stimulate microbial activity.
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