Evidence map›Paper›PMID 25575307›Full record

ArticleThe ISME journal2015

Connecting biodiversity and potential functional role in modern euxinic environments by microbial metagenomics.

Tomàs Llorens-Marès, Shibu Yooseph, Johannes Goll, Jeff Hoffman, Maria Vila-Costa, Carles M Borrego, Chris L Dupont, Emilio O Casamayor

Open access · hybridAbstract read
In one paragraph

Article in The ISME journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
9.7field-weighted citation impact, top 2% of its field
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

46 citing papers in PubMed, 137 citations in OpenAlex.

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  6. Assessing environmental gradients in relation to dark COApplied and environmental microbiology · 2025
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  15. Dissimilatory nitrate reduction and functional genes in two subtropical rivers, China.Environmental science and pollution research international · 2021
    Article
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  19. Review
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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

8 authors at 3 institutions in 2 countries.

Tomàs Llorens-MarèsIntegrative Freshwater Ecology Group, Center of Advanced Studies of Blanes-Spanish Council for Research (CEAB-CSIC), Blanes, Girona, Spain.
Shibu YoosephInformatics Group, J Craig Venter Institute, San Diego, CA, USA.
Johannes GollInformatics Group, J Craig Venter Institute, Rockville, MD, USA.
Jeff HoffmanMicrobial and Environmental Genomics Group, J Craig Venter Institute, San Diego, CA, USA.
Maria Vila-CostaIntegrative Freshwater Ecology Group, Center of Advanced Studies of Blanes-Spanish Council for Research (CEAB-CSIC), Blanes, Girona, Spain.
Carles M Borrego1] Water Quality and Microbial Diversity, Catalan Institute for Water Research (ICRA), Girona, Spain [2] Group of Molecular Microbial Ecology, Institute of Aquatic Ecology, University of Girona, Girona, Spain.
Chris L DupontMicrobial and Environmental Genomics Group, J Craig Venter Institute, San Diego, CA, USA.
Emilio O CasamayorIntegrative Freshwater Ecology Group, Center of Advanced Studies of Blanes-Spanish Council for Research (CEAB-CSIC), Blanes, Girona, Spain.
J. Craig Venter Institute · USCentre d'Estudis Avançats de Blanes · ESCatalan Institute for Water Research · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stratified sulfurous lakes are appropriate environments for studying the links between composition and functionality in microbial communities and are potentially modern analogs of anoxic conditions prevailing in the ancient ocean. We explored these aspects in the Lake Banyoles karstic area (NE Spain) through metagenomics and in silico reconstruction of carbon, nitrogen and sulfur metabolic pathways that were tightly coupled through a few bacterial groups. The potential for nitrogen fixation and denitrification was detected in both autotrophs and heterotrophs, with a major role for nitrogen and carbon fixations in Chlorobiaceae. Campylobacterales accounted for a large percentage of denitrification genes, while Gallionellales were putatively involved in denitrification, iron oxidation and carbon fixation and may have a major role in the biogeochemistry of the iron cycle. Bacteroidales were also abundant and showed potential for dissimilatory nitrate reduction to ammonium. The very low abundance of genes for nitrification, the minor presence of anammox genes, the high potential for nitrogen fixation and mineralization and the potential for chemotrophic CO2 fixation and CO oxidation all provide potential clues on the anoxic zones functioning. We observed higher gene abundance of ammonia-oxidizing bacteria than ammonia-oxidizing archaea that may have a geochemical and evolutionary link related to the dominance of Fe in these environments. Overall, these results offer a more detailed perspective on the microbial ecology of anoxic environments and may help to develop new geochemical proxies to infer biology and chemistry interactions in ancient ecosystems.

Indexed as

BiodiversityWater MicrobiologyAmmoniaArchaeaBacteriaCarbonCarbon CycleDenitrificationLakesMetagenomicsNitratesNitrificationNitrogenNitrogen FixationOxidation-ReductionSpainAmmoniaCarbonNitratesNitrogenSulfur

Identifiers

PMID25575307
PMCPMC4478705
OpenAlexW2014450776

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

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.