ArticleApplied and environmental microbiology1998
Analysis of subfossil molecular remains of purple sulfur bacteria in a lake sediment.
Article in Applied and environmental microbiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 150 citations in OpenAlex.
- Prokaryotic assemblages recovered by sedimentary DNA record natural and human-driven disturbances over the past 13 500 years in a cultural landscape.The ISME journal · 2026Article
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- Maximizing efficiency in sedimentary ancient DNA analysis: a novel extract pooling approach.Scientific reports · 2024Article
- Integrating multi-taxon palaeogenomes and sedimentary ancient DNA to study past ecosystem dynamics.Proceedings. Biological sciences · 2021Review
- From Water into Sediment-Tracing FreshwaterMicroorganisms · 2021Article
- Dead or alive: sediment DNA archives as tools for tracking aquatic evolution and adaptation.Communications biology · 2020Review
- New insights on lake sediment DNA from the catchment: importance of taphonomic and analytical issues on the record quality.Scientific reports · 2019Article
- Extracellular DNA as a genetic recorder of microbial diversity in benthic deep-sea ecosystems.Scientific reports · 2018Article
- Preservation and Significance of Extracellular DNA in Ferruginous Sediments from Lake Towuti, Indonesia.Frontiers in microbiology · 2017Article
- Chlorobaculum tepidum Modulates Amino Acid Composition in Response to Energy Availability, as Revealed by a Systematic Exploration of the Energy Landscape of Phototrophic Sulfur Oxidation.Applied and environmental microbiology · 2016Article
- Carbon and Sulfur Cycling below the Chemocline in a Meromictic Lake and the Identification of a Novel Taxonomic Lineage in the FCB Superphylum, Candidatus Aegiribacteria.Frontiers in microbiology · 2016Article
- Sedimentary archaeal amoA gene abundance reflects historic nutrient level and salinity fluctuations in Qinghai Lake, Tibetan Plateau.Scientific reports · 2015Article
- Transcriptomic evidence for microbial sulfur cycling in the eastern tropical North Pacific oxygen minimum zone.Frontiers in microbiology · 2015Article
- Quantification of ammonia oxidation rates and the distribution of ammonia-oxidizing Archaea and Bacteria in marine sediment depth profiles from Catalina Island, California.Frontiers in microbiology · 2012Article
- Analysis of intact ladderane phospholipids, originating from viable anammox bacteria, using RP-LC-ESI-MS.Analytical and bioanalytical chemistry · 2010Article
- Subfossil 16S rRNA gene sequences of green sulfur bacteria in the Black Sea and their implications for past photic zone anoxia.Applied and environmental microbiology · 2008Article
- Bacterial diversity and distribution in the holocene sediments of a northern temperate lake.Microbial ecology · 2007Article
- Stratified communities of active Archaea in deep marine subsurface sediments.Applied and environmental microbiology · 2006Article
- Specific detection, isolation, and characterization of selected, previously uncultured members of the freshwater bacterioplankton community.Applied and environmental microbiology · 2005Article
- Comparison of 16S rRNA and 16S rDNA T-RFLP approaches to study bacterial communities in soil microcosms treated with chromate as perturbing agent.Microbial ecology · 2005Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Molecular remains of purple sulfur bacteria (Chromatiaceae) were detected in Holocene sediment layers of a meromictic salt lake (Mahoney Lake, British Columbia, Canada). The carotenoid okenone and bacteriophaeophytin a were present in sediments up to 11,000 years old. Okenone is specific for only a few species of Chromatiaceae, including Amoebobacter purpureus, which presently predominates in the chemocline bacterial community of the lake. With a primer set specific for Chromatiaceae in combination with denaturing gradient gel electrophoresis, 16S rRNA gene sequences of four different Chromatiaceae species were retrieved from different depths of the sediment. One of the sequences, which originated from a 9, 100-year-old sample, was 99.2% identical to the 16S rRNA gene sequence of A. purpureus ML1 isolated from the chemocline. Employing primers specific for A. purpureus ML1 and dot blot hybridization of the PCR products, the detection limit for A. purpureus ML1 DNA could be lowered to 0.004% of the total community DNA. With this approach the DNA of the isolate was detected in 7 of 10 sediment layers, indicating that A. purpureus ML1 constituted at least a part of the ancient purple sulfur bacterial community. The concentrations of A. purpureus DNA and okenone in the sediment were not correlated, and the ratio of DNA to okenone was much lower in the subfossil sediment layers (2.7 . 10(-6)) than in intact cells (1.4). This indicates that degradation rates are significantly higher for genomic DNA than for hydrocarbon cell constituents, even under anoxic conditions and at the very high sulfide concentrations present in Mahoney Lake.
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