Active sulfur cycling in the terrestrial deep subsurface

E Bell, T Lamminmäki, J Alneberg… - The ISME …, 2020 - academic.oup.com
The deep terrestrial subsurface remains an environment where there is limited
understanding of the extant microbial metabolisms. At Olkiluoto, Finland, a deep geological …

Geological and geochemical controls on subsurface microbial life in the Samail Ophiolite, Oman

KR Rempfert, HM Miller, N Bompard, D Nothaft… - Frontiers in …, 2017 - frontiersin.org
Microbial abundance and diversity in deep subsurface environments is dependent upon the
availability of energy and carbon. However, supplies of oxidants and reductants capable of …

Advances in defining ecosystem functions of the terrestrial subsurface biosphere

DAR Meyer-Dombard, J Malas - Frontiers in Microbiology, 2022 - frontiersin.org
The subsurface is one of the last remaining 'uncharted territories' of Earth and is now
accepted as a biosphere in its own right, at least as critical to Earth systems as the surface …

Long-term fertilization altered microbial community structure in an aeolian sandy soil in northeast China

S Zhang, X Li, K Chen, J Shi, Y Wang, P Luo… - Frontiers in …, 2022 - frontiersin.org
Soil microorganisms play crucial roles in nutrient cycling and determining soil quality and
fertility; thus, they are important for agricultural production. However, the impacts of long …

Geological activity shapes the microbiome in deep-subsurface aquifers by advection

Y Zhang, RN Horne, AJ Hawkins… - Proceedings of the …, 2022 - National Acad Sciences
Subsurface environments host diverse microorganisms in fluid-filled fractures; however, little
is known about how geological and hydrological processes shape the subterranean …

[HTML][HTML] Metagenomic identification of active methanogens and methanotrophs in serpentinite springs of the Voltri Massif, Italy

WJ Brazelton, CN Thornton, A Hyer, KI Twing… - PeerJ, 2017 - peerj.com
The production of hydrogen and methane by geochemical reactions associated with the
serpentinization of ultramafic rocks can potentially support subsurface microbial ecosystems …

High-resolution, long-term isotopic and isotopologue variation identifies the sources and sinks of methane in a deep subsurface carbon cycle

O Warr, ED Young, T Giunta, IE Kohl, JL Ash… - … et Cosmochimica Acta, 2021 - Elsevier
This study applies a combined isotope and doubly-substituted isotopologue ('clumped')
methane approach to samples collected over a 9-year long-term experiment at the Kidd …

Exploration of deep terrestrial subsurface microbiome in Late Cretaceous Deccan traps and underlying Archean basement, India

A Dutta, S Dutta Gupta, A Gupta, J Sarkar, S Roy… - Scientific reports, 2018 - nature.com
Scientific deep drilling at Koyna, western India provides a unique opportunity to explore
microbial life within deep biosphere hosted by~ 65 Myr old Deccan basalt and Archaean …

Iron or sulfur respiration—an adaptive choice determining the fitness of a natronophilic bacterium Dethiobacter alkaliphilus in geochemically contrasting …

DG Zavarzina, AY Merkel, AA Klyukina… - Frontiers in …, 2023 - frontiersin.org
Haloalkaliphilic microorganisms are double extremophiles functioning optimally at high
salinity and pH. Their typical habitats are soda lakes, geologically ancient yet widespread …

Ultradeep microbial communities at 4.4 km within crystalline bedrock: implications for habitability in a planetary context

L Purkamo, R Kietäväinen, M Nuppunen-Puputti… - Life, 2020 - mdpi.com
The deep bedrock surroundings are an analog for extraterrestrial habitats for life. In this
study, we investigated microbial life within anoxic ultradeep boreholes in Precambrian …