Evidence map›Paper›PMID 40539777›Full record

ArticleApplied and environmental microbiology2025

Cryptic cycling by electroactive bacterioplankton in Trout Bog Lake.

Charles N Olmsted, Mark Gahler, Eric Roden, Ben Peterson, James Lazarcik, Patricia Q Tran, Maureen Berg, Donald A Bryant, Danielle Goudeau, Rex R Malmstrom and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Applied and environmental microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Charles N OlmstedDepartment of Molecular and Environmental Toxicology, Universities of Wisconsin, Madison, Wisconsin, USA.ORCID 0000-0002-3714-7124
Mark GahlerTrout Lake Station, Center for Limnology, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Eric RodenDepartment of Geoscience, University of Wisconsin, Madison, Wisconsin, USA.
Ben PetersonDepartment of Bacteriology, University of Wisconsin, Madison, Wisconsin, USA.
James LazarcikDepartment of Civil and Environmental Engineering, Universities of Wisconsin, Madison, Wisconsin, USA.
Patricia Q TranDepartment of Bacteriology, University of Wisconsin, Madison, Wisconsin, USA.ORCID 0000-0003-3948-3938
Maureen BergJoint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Donald A BryantDepartment of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania, USA.ORCID 0000-0003-2782-5988
Danielle GoudeauJoint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Rex R MalmstromJoint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Mohan QinDepartment of Civil and Environmental Engineering, Universities of Wisconsin, Madison, Wisconsin, USA.
Katherine D McMahonDepartment of Bacteriology, University of Wisconsin, Madison, Wisconsin, USA.ORCID 0000-0002-7038-026X

Funding

National Science Foundation DEB-0217533, DEB-0822700, DEB-1440297, DEB-2025982, MCB-9977903, and DEB-0702395Office of Science DE-AC02-05CH11231
6 · The paper itself

Abstract

The potential for extracellular electron transfer (EET) is a prevailing genomic feature of humic lake bacterioplankton. However, there has been little evidence for the substantial ecological contribution predicted by genetics. We hypothesized that anoxygenic phototrophic electrotrophs and accompanying heterotrophic electrogens cycle dissolved organic matter (DOM) between oxidized and reduced states. We predicted that such bacterioplankton would exhibit diel-scale oscillations due to the light dependency of photosynthesis. Using Trout Bog Lake in Wisconsin, USA, as our model ecosystem, we profiled the water column with depth-discrete metagenomic, physiochemical, and electrochemical analyses. We observed variation in oxidation reduction potential (ORP) in response to sunlight, initiating at depths populated by anoxygenic phototrophs with EET genes. We developed an automated buoy to measure electric current flow between many pairs of electrodes simultaneously, observing correlation in electron consumption to sunlight. Our results, combined with published metatranscriptomic analysis, indicate the occurrence of electron cycling between phototrophic oxidation (electrotrophic metabolism) by

Indexed as

BacteriaLakesPlanktonElectron TransportOxidation-ReductionTroutWetlandsWisconsinbacterioplanktoncarbon emissionsChlorobiumcryptic cyclingdissolved organic matterecologyelectroactiveelectrotrophicextracellular electron transferoxidation reduction potential

Identifiers

PMID40539777
PMCPMC12285243

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.