ArticlemSphere2019
Extracellular Electron Transfer May Be an Overlooked Contribution to Pelagic Respiration in Humic-Rich Freshwater Lakes.
Article in mSphere, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 36 citations in OpenAlex.
- Cryptic cycling by electroactive bacterioplankton in Trout Bog Lake.Applied and environmental microbiology · 2025Article
- Soil humus-reducing bacteria in the Xisha islands, South China sea: unveiling diversity and predicting functions.BMC microbiology · 2025Article
- Dissolved organic matter and sulfide enhance the CHMicrobiology spectrum · 2025Article
- Effects of soluble electron shuttles on microbial iron reduction and methanogenesis.Applied and environmental microbiology · 2025Article
- Geobatteries in environmental biogeochemistry: Electron transfer and utilization.Environmental science and ecotechnology · 2024Review
- Identification of Shemin pathway genes for tetrapyrrole biosynthesis in bacteriophage sequences from aquatic environments.Nature communications · 2024Article
- Gallionellaceae pangenomic analysis reveals insight into phylogeny, metabolic flexibility, and iron oxidation mechanisms.mSystems · 2023Article
- Current production by non-methanotrophic bacteria enriched from an anaerobic methane-oxidizing microbial community.Biofilm · 2021Article
- Comprehensive dataset of shotgun metagenomes from oxygen stratified freshwater lakes and ponds.Scientific data · 2021Article
- Vertical stratification patterns of methanotrophs and their genetic controllers in water columns of oxygen-stratified boreal lakes.FEMS microbiology ecology · 2021Article
- Anoxygenic photosynthesis and iron-sulfur metabolic potential of Chlorobia populations from seasonally anoxic Boreal Shield lakes.The ISME journal · 2020Article
- Aerobic microbial communities in the sediments of a marine oxygen minimum zone.FEMS microbiology letters · 2020Article
- Reactivity, fate and functional roles of dissolved organic matter in anoxic inland waters.Biology letters · 2020Article
- Extracellular electron uptake in Methanosarcinales is independent of multiheme c-type cytochromes.Scientific reports · 2020Article
- Diazotroph Genomes and Their Seasonal Dynamics in a Stratified Humic Bog Lake.Frontiers in microbiology · 2020Article
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Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Humic lakes and ponds receive large amounts of terrestrial carbon and are important components of the global carbon cycle, yet how their redox cycling influences the carbon budget is not fully understood. Here we compared metagenomes obtained from a humic bog and a clear-water eutrophic lake and found a much larger number of genes that might be involved in extracellular electron transfer (EET) for iron redox reactions and humic substance (HS) reduction in the bog than in the clear-water lake, consistent with the much higher iron and HS levels in the bog. These genes were particularly rich in the bog's anoxic hypolimnion and were found in diverse bacterial lineages, some of which are relatives of known iron oxidizers or iron-HS reducers. We hypothesize that HS may be a previously overlooked electron acceptor and that EET-enabled redox cycling may be important in pelagic respiration and greenhouse gas budget in humic-rich freshwater lakes.
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