Microbial-Mediated Carbon Metabolism in the Subtropical Marine Mangroves with the Impact of Shrimp Pond Discharge

Marine Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 106980 - 106980

Published: Jan. 1, 2025

Language: Английский

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Polysaccharide metabolic pattern of Cytophagales and Flavobacteriales: a comprehensive genomics approach

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: March 4, 2025

The complete metabolism of carbohydrates, as the most abundant and structurally diverse organic matter on earth, requires involvement different carbohydrate-active enzymes (CAZymes). Flavobacteriales Cytophagales are two groups whose members specialize in polysaccharide metabolism, but research their metabolic patterns based overall CAZymes is scarce. In this study, we analyzed 702 filtered genomes obtained 100,445 CAZymes. According to taxonomic status living environment, explored impact status, isolation source, environmental condition potential patterns. results indicated significant differences CAZyme composition among statuses or environments. Compared with genomes, possess more CAZymes, have fewer unique families. Genomes from families vary greatly terms family diversity composition, relatively small divergences were found same order. Furthermore, our findings that marine tidal flat environments share similarities compared terrestrial genomes. Extreme constrain types present, certain significantly lower than those normal Although both environments, dimensionality reduction clustering analysis evolutionary main factor influencing these strains. correlations majority synergistically involved metabolism. This study provides a comprehensive profile Cytophagales, highlighting role shaping prevalence synergism These implications for understanding microbial carbohydrate

Language: Английский

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Filamentous bacteria in activated sludge: Geographic distribution and impact of treatment processes

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 379, P. 124859 - 124859

Published: March 8, 2025

Language: Английский

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Animal burrowing at cold seep ecotones boosts productivity by linking macromolecule turnover with chemosynthesis and nutrient cycling

Biogeosciences, Journal Year: 2025, Volume and Issue: 22(5), P. 1321 - 1340

Published: March 10, 2025

Abstract. Hydrocarbon seepage at the deep seafloor fuels flourishing chemosynthetic communities. These seeps impact functionality of benthic ecosystem beyond hotspots gas emission, altering abundance, diversity, and activity microbiota fauna affecting geochemical processes. However, these ecotones (chemotones) are far less explored than foci seepage. To better understand chemotones, we (i) mapped seabed morphology periphery in eastern Mediterranean Sea, using video analyses synthetic aperture sonar; (ii) sampled chemotone sediments described burrowing computerized tomography; (iii) nutrient concentrations; (iv) quantified microbial activity, N2 fixation rates selected samples; (v) extracted DNA diversity function amplicon sequencing metagenomics. Our results show that creates intensity gradients seep ecotones, with ghost shrimp Calliax lobata primarily responsible for burrowing, which influences nitrogen sulfur cycling through activity. Burrow walls form a unique habitat, where macromolecules degraded by Bacteroidota, their fermentation products fuel sulfate reduction Desulfobacterota Nitrospirota. These, turn, support Campylobacterota giant bacteria Thiomargarita, can aid C. nutrition. interactions may enhanced productivity ecotones.

Language: Английский

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Microbial Dynamics in Seagrass Restoration: Unveiling Hidden Indicators of Ecological Success

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 208, P. 107089 - 107089

Published: March 21, 2025

Language: Английский

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