Spaceflight adaptation requires organ specific alterations in the proteomes of Arabidopsis

Arabidopsis seedlings grown from seed for 12 days on the International Space Station provide a unique proteomic record of plant adaptation to microgravity. The National Aeronautics and Space Administration preserved leaf and root samples in RNAlater on orbit and analyzed them using iTRAQ broad-scale proteomics procedures. This dataset captures organ-specific protein expression changes resulting from spaceflight environmental stressors.

Use Cases

• Identify organ-specific protein expression signatures based on the comparison of leaf and root proteomes.
• Model plant stress response pathways based on proteomic alterations induced by the spaceflight environment.
• Benchmark computational biology tools for proteomic analysis based on data from a controlled space experiment.

Strengths

• Data originates from a controlled experiment on the International Space Station, a unique environment.
• Samples were preserved on orbit in RNAlater, which likely helps maintain biomolecular integrity.
• Analysis used iTRAQ proteomics procedures, a method for broad-scale protein quantification.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

iTRAQ broad-scale proteomics analysis of Arabidopsis seedlings grown on the International Space Station.

Time Range

Experimental growth period of 12 days.

Freshness

Last updated 2026-03 13 20:13:18.329714; freshness should be verified.

Geography

International Space Station (orbital).