ArticleExtremophiles : life under extreme conditions2019
Microbial community composition and dolomite formation in the hypersaline microbial mats of the Khor Al-Adaid sabkhas, Qatar.
Article in Extremophiles : life under extreme conditions, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Characterizing carbonate mineral-forming bacterial strains and their carbonic anhydrase activities in two coastal sabkhas.Biochemistry and biophysics reports · 2025Article
- Do coastal salt mudflats (sabkhas) contribute to the blue carbon sequestration?Biogeochemistry · 2025Article
- Microbial diversity in polyextreme salt flats and their potential applications.Environmental science and pollution research international · 2024Review
- Study of diversity of mineral-forming bacteria in sabkha mats and sediments of mangrove forest in Qatar.Biotechnology reports (Amsterdam, Netherlands) · 2023Article
- Variability of blue carbon storage in arid evaporitic environment of two coastal Sabkhas or mudflats.Scientific reports · 2023Article
- Anode Modification with FeInternational journal of environmental research and public health · 2023Article
- A review of microbial-environmental interactions recorded in Proterozoic carbonate-hosted chert.Geobiology · 2023Review
- Salt flat microbial diversity and dynamics across salinity gradient.Scientific reports · 2022Article
- Bacterial community structure and metabolic potential in microbialite-forming mats from South Australian saline lakes.Geobiology · 2022Article
- Article
- Dolomite genesis in bioturbated marine zones of an early-middle Miocene coastal mud volcano outcrop (Kuwait).Scientific reports · 2021Article
- Proto-dolomite formation in microbial consortia dominated by Halomonas strains.Extremophiles : life under extreme conditions · 2019Article
- Dolomitic Microfossil Preservation in a Cryogenian Microbial Reef, Arkaroola (South Australia).GeobiologyArticle
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Authors and funding
12 authors.
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Abstract
The Khor Al-Adaid sabkha in Qatar is among the rare extreme environments on Earth where it is possible to study the formation of dolomite-a carbonate mineral whose origin remains unclear and has been hypothetically linked to microbial activity. By combining geochemical measurements with microbiological analysis, we have investigated the microbial mats colonizing the intertidal areas of sabhka. The main aim of this study was to identify communities and conditions that are favorable for dolomite formation. We inspected and sampled two locations. The first site was colonized by microbial mats that graded vertically from photo-oxic to anoxic conditions and were dominated by cyanobacteria. The second site, with higher salinity, had mats with an uppermost photo-oxic layer dominated by filamentous anoxygenic photosynthetic bacteria (FAPB), which potentially act as a protective layer against salinity for cyanobacterial species within the deeper layers. Porewater in the uppermost layers of the both investigated microbial mats was supersaturated with respect to dolomite. Corresponding to the variation of the microbial community's vertical structure, a difference in crystallinity and morphology of dolomitic phases was observed: dumbbell-shaped proto-dolomite in the mats dominated by cyanobacteria and rhombohedral ordered-dolomite in the mat dominated by FAPB.
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