Antarctic Bacterial Exopolysaccharides Chemistry and Physiology

Eleven files detail the chemical and physiological properties of exopolysaccharides produced by Antarctic marine bacteria. The dataset includes 16S rRNA gene sequences, fatty acid profiles, EPS composition data, and experiments on temperature effects and metal adsorption. Data was collected by the Australian Antarctic Data Centre and last updated in June 2004.

Use Cases

• Correlate EPS carbohydrate composition and sulfate content with bacterial species identified via 16S rRNA gene sequences.
• Model the effect of temperature on EPS yield and glucose conversion efficiency for Pseudoalteromonas sp. CAM025.
• Analyze the efficiency of copper and cadmium metal ion adsorption onto EPS from specific bacterial isolates.
• Compare fatty acid content data from GC/MS with phenotypic characteristics for novel strain identification.

Strengths

• Eleven distinct data files covering genetic, chemical, and physiological measurements.
• Includes molecular weight and polydispersity data for exopolysaccharides.
• Provides specific experimental data on temperature effects for a key bacterial strain.

Limitations

• Dataset is from 2004, making it temporally stale for contemporary analysis.
• Sample size for specific experiments (e.g., metal adsorption, temperature effects) is limited to a few bacterial strains.
• Row counts and overall dataset size are unknown.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC), hosted on NASA EarthData.

Collection Method

Data gathered from laboratory analysis of bacterial isolates from Southern Ocean seawater and ice samples, including GC/MS, chemical assays, and gene sequencing.

Freshness

Last updated in June 2004.

Geography

Southern Ocean and Antarctic marine environments.