Evidence map›Paper›PMID 39354222›Full record

ArticleMicrobial ecology2024

Subsurface Microbial Colonization at Mineral-Filled Veins in 2-Billion-Year-Old Mafic Rock from the Bushveld Igneous Complex, South Africa.

Yohey Suzuki, Susan J Webb, Mariko Kouduka, Hanae Kobayashi, Julio Castillo, Jens Kallmeyer, Kgabo Moganedi, Amy J Allwright, Reiner Klemd, Frederick Roelofse and 4 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Microbial ecology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
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

14 authors.

Yohey SuzukiDepartment of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, Japan. yohey-suzuki@eps.s.u-tokyo.ac.jp.
Susan J WebbSchool of Geosciences, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa.
Mariko KoudukaDepartment of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, Japan.
Hanae KobayashiKyoto Laboratory, Nihon Thermal Consulting Co, 14 Yoshidakawara-Cho, Sakyo-Ku, Kyoto, Japan.
Julio CastilloDepartment of Microbial, Biochemical and Food Biotechnology, University of the Free State, PO Box 339, Bloemfontein, 9300, South Africa.
Jens KallmeyerGFZ German Research Centre for Geosciences, Potsdam, 14473, Telegrafenberg, Germany.
Kgabo MoganediDepartment of Biochemistry, Microbiology and Biotechnology, University of Limpopo, Private Bag X1106, Sovenga, 0727, Limpopo Province, South Africa.
Amy J AllwrightDepartment of Earth Sciences, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa.
Reiner KlemdGeoZentrum Nordbayern, University of Erlangen-Nuremberg, Schlossgarten 5, 91054, Erlangen, Germany.
Frederick RoelofseDepartment of Geology, University of the Free State, Bloemfontein, 9300, South Africa.
Mabatho MapilokoSchool of Geosciences, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa.
Stuart J HillSchool of Geosciences, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa.
Lewis D AshwalSchool of Geosciences, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2000, South Africa.
Robert B TrumbullGFZ German Research Centre for Geosciences, Potsdam, 14473, Telegrafenberg, Germany.

Funding

Astrobiology Center Program of National Institutes of Natural Sciences (NINS) AB0502
6 · The paper itself

Abstract

Recent advances in subsurface microbiology have demonstrated the habitability of multi-million-year-old igneous rocks, despite the scarce energy supply from rock-water interactions. Given the minimal evolution coupled with exceedingly slow metabolic rates in subsurface ecosystems, spatiotemporally stable igneous rocks can sustain microbes over geological time scales. This study investigated a 2-billion-year-old mafic rock in the Bushveld Igneous Complex, South Africa, where ultradeep drilling is being executed by the International Continental Scientific Drilling Program (ICDP). New procedures were successfully developed to simultaneously detect indigenous and contaminant microbial cells in a drill core sample. Precision rock sectioning coupled with infrared, fluorescence, and electron microscopy imaging of the rock section with submicron resolution revealed microbial colonization in veins filled with clay minerals. The entry and exit of microbial cells in the veins are severely limited by tight packing with clay minerals, the formation of which supplies energy sources for long-term habitability. Further microbiological characterization of drilled rock cores from the Bushveld Igneous Complex will expand the understanding of microbial evolution in deep igneous rocks over 2 billion years.

Indexed as

BacteriaClayGeologic SedimentsMineralsSoil MicrobiologySouth AfricaClayMineralsBushveld Drilling Project (BVDP)Deep biosphereLife detectionRock-hosted lifeSubsurface microbes

Identifiers

PMID39354222
PMCPMC11445344

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Registered trials

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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.