ArticleFrontiers in microbiology2018
Temperature Controls Crystalline Iron Oxide Utilization by Microbial Communities in Methanic Ferruginous Marine Sediment Incubations.
Article in Frontiers in microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 41 citations in OpenAlex.
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- Identifying Active Rather than Total Methanotrophs Inhabiting Surface Soil Is Essential for the Microbial Prospection of Gas Reservoirs.Microorganisms · 2024Article
- Unexpected carbon utilization activity of sulfate-reducing microorganisms in temperate and permanently cold marine sediments.The ISME journal · 2024Article
- The Impact of Sea Ice Cover on Microbial Communities in Antarctic Shelf Sediments.Microorganisms · 2023Article
- Catabolic protein degradation in marine sediments confined to distinct archaea.The ISME journal · 2022Article
- Microbial Diversity in Groundwater and Its Response to Seawater Intrusion in Beihai City, Southern China.Frontiers in microbiology · 2022Article
- Iron and sulfate reduction structure microbial communities in (sub-)Antarctic sediments.The ISME journal · 2021Article
- Crystalline iron oxides stimulate methanogenic benzoate degradation in marine sediment-derived enrichment cultures.The ISME journal · 2021Article
- Methanogen Productivity and Microbial Community Composition Varies With Iron Oxide Mineralogy.Frontiers in microbiology · 2021Article
- COThe ISME journal · 2019Article
- Rates and Microbial Players of Iron-Driven Anaerobic Oxidation of Methane in Methanic Marine Sediments.Frontiers in microbiology · 2019Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microorganisms can use crystalline iron minerals for iron reduction linked to organic matter degradation or as conduits for direct interspecies electron transfer (mDIET) to syntrophic partners, e.g., methanogens. The environmental conditions that lead either to reduction or conduit use are so far unknown. We investigated microbial community shifts and interactions with crystalline iron minerals (hematite and magnetite) in methanic ferruginous marine sediment incubations during organic matter (glucose) degradation at varying temperatures. Iron reduction rates increased with decreasing temperature from 30°C to 4°C. Both hematite and magnetite facilitated iron reduction at 4°C, demonstrating that microorganisms in the methanic zone of marine sediments can reduce crystalline iron oxides under psychrophilic conditions. Methanogenesis occurred, however, at higher rates with increasing temperature. At 30°C, both hematite and magnetite accelerated methanogenesis onset and maximum process rates. At lower temperatures (10°C and 4°C), hematite could still facilitate methanogenesis but magnetite served more as an electron acceptor for iron reduction than as a conduit. Different temperatures selected for different key microorganisms: at 30°C, members of genus
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