Metagenomic Data on Microbial Iron Metabolism in Oxic and Hypoxic Estuaries

Supplementary file 1 contains metagenomic data comparing microbial iron metabolism in sediments from two estuaries. The data was authored by Rui Du and last updated on 2026-05-13. It compares the Oujiang River Estuary, an oxic system, with the seasonally hypoxic Yangtze River Estuary.

Use Cases

• Compare taxonomic profiles of iron-metabolizing microbes based on the described dominance of Proteobacteria, Thermodesulfobacteriota, Chloroflexota, and Candidatus Bathyarchaeota.
• Analyze the stratification of microbial iron metabolism genes based on the described depth-dependent enrichment patterns (0–8 cm vs. deeper horizons).
• Investigate co-occurrence networks linking iron cycling to carbon, nitrogen, sulfur, and phosphorus transformations as described in the study.
• Assess the genetic potential for dissimilatory iron reduction and oxidation based on the presence of genes like mtrABC and mtoA mentioned in the description.
• Study microbial competition for iron through high-affinity acquisition systems like siderophores, inorganic Fe transporters, and heme uptake as indicated in the text.

Strengths

• Data is complemented by sediment core incubation experiments showing geochemical responses over a 16-day period.
• The description provides a detailed comparative analysis of two distinct estuarine environments (oxic vs. hypoxic).
• The dataset is licensed under CC-BY-4.0, allowing for open reuse with attribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The 22.5 MB file size suggests a relatively small dataset, potentially limiting the scope of analysis.

Provenance

Source

figshare

Collection Method

Metagenomic sequencing of sediment samples, complemented by sediment core incubations.

Freshness

Last updated 2026-05-13 05:51:31; freshness should be verified.

Geography

Oujiang River Estuary and Yangtze River Estuary, China.