ArticleISME communications2022
Metagenomic, (bio)chemical, and microscopic analyses reveal the potential for the cycling of sulfated EPS in Shark Bay pustular mats.
Article in ISME communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 19 citations in OpenAlex.
- Recent Microbial Evolutionary Insights From Metagenomics.Genome biology and evolution · 2026Review
- Sulfide-oxidizing potential and hypersalinity tolerance strategies in salt-crust covered coastal microbial mats.The ISME journal · 2026Article
- Fate and carbon sequestration potential of sunken macroalgae in coastal oceans from long-term microbial degradation perspective.National science review · 2025Article
- Chemosynthesis enhances net primary production and nutrient cycling in a hypersaline microbial mat.The ISME journal · 2025Article
- Abundant and active community members respond to diel cycles in hot spring phototrophic mats.The ISME journal · 2025Article
- Linking microbial ecology to the cycling of neutral and acidic polysaccharides in pustular mats from Shark Bay, Western Australia.Frontiers in microbiology · 2025Article
- Karst-environments of the southeastern Yucatan Peninsula: Hotspots for modern freshwater microbialites.PloS one · 2025Article
- Microbial diversity of coastal microbial mats formations in karstic habitats from the Yucatan Peninsula, Mexico.PloS one · 2025Article
- Metagenomic study of lake microbial mats reveals protease-inhibiting antiviral peptides from a core microbiome member.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Deciphering the functional and structural complexity of the Solar Lake flat mat microbial benthic communities.mSystems · 2024Article
- Predicted metabolic roles and stress responses provide insights into candidate phyla Hydrogenedentota and Sumerlaeota as members of the rare biosphere in biofilms from various environments.Environmental microbiology reports · 2024Article
- Article
- GUN4 appeared early in cyanobacterial evolution.PNAS nexus · 2023Article
- A review of microbial-environmental interactions recorded in Proterozoic carbonate-hosted chert.Geobiology · 2023Review
- Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
Cyanobacteria and extracellular polymeric substances (EPS) in peritidal pustular microbial mats have a two-billion-year-old fossil record. To understand the composition, production, degradation, and potential role of EPS in modern analogous communities, we sampled pustular mats from Shark Bay, Australia and analyzed their EPS matrix. Biochemical and microscopic analyses identified sulfated organic compounds as major components of mat EPS. Sulfur was more abundant in the unmineralized regions with cyanobacteria and less prevalent in areas that contained fewer cyanobacteria and more carbonate precipitates. Sequencing and assembly of the pustular mat sample resulted in 83 high-quality metagenome-assembled genomes (MAGs). Metagenomic analyses confirmed cyanobacteria as the primary sources of these sulfated polysaccharides. Genes encoding for sulfatases, glycosyl hydrolases, and other enzymes with predicted roles in the degradation of sulfated polysaccharides were detected in the MAGs of numerous clades including Bacteroidetes, Chloroflexi, Hydrogenedentes, Myxococcota, Verrucomicrobia, and Planctomycetes. Measurable sulfatase activity in pustular mats and fresh cyanobacterial EPS confirmed the role of sulfatases in the degradation of sulfated EPS. These findings suggest that the synthesis, modification, and degradation of sulfated polysaccharides influence microbial interactions, carbon cycling, and biomineralization processes within peritidal pustular microbial mats.
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Registered trials
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