Microorganisms | |
Rapid Reactivation of Deep Subsurface Microbes in the Presence of C-1 Compounds | |
Pauliina Rajala1  Malin Bomberg1  Riikka Kietäväinen2  Ilmo Kukkonen3  Lasse Ahonen2  Mari Nyyssönen1  Merja Itävaara1  Ludmila Chistoserdova4  | |
[1] Technical Research Centre of Finland (VTT), Kemistintie 3/Tietotie 2, FI-02044, Espoo, Finland; E-Mails:;Geological Survey of Finland (GTK), P.O. Box 96, FI-02151, Espoo, Finland; E-Mails:;University of Helsinki, P.O. Box 33, University of Helsinki, FI-00014, Helsinki, Finland; E-Mail:Technical Research Centre of Finland (VTT), Kemistintie 3/Tietotie 2, FI-02044, Espoo, Finland; | |
关键词: C-1 carbon; methanotrophy; sulphate reduction; nitrate reduction; terrestrial deep biosphere; microbial activity; | |
DOI : 10.3390/microorganisms3010017 | |
来源: mdpi | |
【 摘 要 】
Microorganisms in the deep biosphere are believed to conduct little metabolic activity due to low nutrient availability in these environments. However, destructive penetration to long-isolated bedrock environments during construction of underground waste repositories can lead to increased nutrient availability and potentially affect the long-term stability of the repository systems, Here, we studied how microorganisms present in fracture fluid from a depth of 500 m in Outokumpu, Finland, respond to simple carbon compounds (C-1 compounds) in the presence or absence of sulphate as an electron acceptor. C-1 compounds such as methane and methanol are important intermediates in the deep subsurface carbon cycle, and electron acceptors such as sulphate are critical components of oxidation processes. Fracture fluid samples were incubated
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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RO202003190016516ZK.pdf | 1285KB | download |