Leberecht, Kerstin M. ; Ritter, Simon M. ; Lapp, Christian J. ; Klose, Lukas ; Eschenröder, Julian ; Scholz, Christian ; Kühnel, Sebastian ; Stinnesbeck, Wolfgang ; Kletzin, Arnulf ; Isenbeck‐Schröter, Margot ; Gescher, Johannes (2022)
Microbially promoted calcite precipitation in the pelagic redoxcline: Elucidating the formation of the turbid layer.
In: Geobiology, 2022, 20 (4)
doi: 10.26083/tuprints-00022442
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Large bell‐shaped calcite formations called "Hells Bells" were discovered underwater in the stratified cenote El Zapote on the Yucatán Peninsula, Mexico. Together with these extraordinary speleothems, divers found a white, cloudy turbid layer into which some Hells Bells partially extend. Here, we address the central question if the formation of the turbid layer could be based on microbial activity, more specifically, on microbially induced calcite precipitation. Metagenomic and metatranscriptomic profiling of the microbial community in the turbid layer, which overlaps with the pelagic redoxcline in the cenote, revealed chemolithoautotrophic Hydrogenophilales and unclassified β‐Proteobacteria as the metabolic key players. Bioinformatic and hydrogeochemical data suggest chemolithoautotrophic oxidation of sulfide to zero‐valent sulfur catalyzed by denitrifying organisms due to oxygen deficiency. Incomplete sulfide oxidation via nitrate reduction and chemolithoautotrophy are both proton‐consuming processes, which increase the pH in the redoxcline favoring authigenic calcite precipitation and may contribute to Hells Bells growth. The observed mechanism of microbially induced calcite precipitation is potentially applicable to many other stagnant sulfate‐rich water bodies.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Leberecht, Kerstin M. ; Ritter, Simon M. ; Lapp, Christian J. ; Klose, Lukas ; Eschenröder, Julian ; Scholz, Christian ; Kühnel, Sebastian ; Stinnesbeck, Wolfgang ; Kletzin, Arnulf ; Isenbeck‐Schröter, Margot ; Gescher, Johannes |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Microbially promoted calcite precipitation in the pelagic redoxcline: Elucidating the formation of the turbid layer |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | John Wiley & Sons |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Geobiology |
| Jahrgang/Volume einer Zeitschrift: | 20 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.26083/tuprints-00022442 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22442 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Large bell‐shaped calcite formations called "Hells Bells" were discovered underwater in the stratified cenote El Zapote on the Yucatán Peninsula, Mexico. Together with these extraordinary speleothems, divers found a white, cloudy turbid layer into which some Hells Bells partially extend. Here, we address the central question if the formation of the turbid layer could be based on microbial activity, more specifically, on microbially induced calcite precipitation. Metagenomic and metatranscriptomic profiling of the microbial community in the turbid layer, which overlaps with the pelagic redoxcline in the cenote, revealed chemolithoautotrophic Hydrogenophilales and unclassified β‐Proteobacteria as the metabolic key players. Bioinformatic and hydrogeochemical data suggest chemolithoautotrophic oxidation of sulfide to zero‐valent sulfur catalyzed by denitrifying organisms due to oxygen deficiency. Incomplete sulfide oxidation via nitrate reduction and chemolithoautotrophy are both proton‐consuming processes, which increase the pH in the redoxcline favoring authigenic calcite precipitation and may contribute to Hells Bells growth. The observed mechanism of microbially induced calcite precipitation is potentially applicable to many other stagnant sulfate‐rich water bodies. |
| Freie Schlagworte: | biogeochemistry, chemolithoautotrophy, microbially induced calcite precipitation, redoxcline, sulfide oxidation |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-224429 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie 900 Geschichte und Geografie > 910 Geografie, Reisen |
| Fachbereich(e)/-gebiet(e): | 10 Fachbereich Biologie 10 Fachbereich Biologie > Sulfur Biochemistry and Microbial Bioenergetics |
| Hinterlegungsdatum: | 07 Okt 2022 13:12 |
| Letzte Änderung: | 10 Okt 2022 06:08 |
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- Microbially promoted calcite precipitation in the pelagic redoxcline: Elucidating the formation of the turbid layer. (deposited 07 Okt 2022 13:12) [Gegenwärtig angezeigt]
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