Arabidopsis Seedling Transcriptome Response to Gamma and HZE Radiation

44 samples from Arabidopsis thaliana seedlings treated with 100 Gy gamma or 30 Gy HZE ionizing radiation. The dataset compares the transcriptional response across 22 experimental conditions, including wild-type and ATM kinase mutant plants, sampled at time points from 1.5 to 24 hours post-irradiation. The data was produced by the National Aeronautics and Space Administration and last updated in March 2026.

Use Cases

• Compare transcriptional responses to different types of ionizing radiation based on the described gamma and HZE treatments.
• Analyze the role of the ATM kinase in DNA damage signaling based on the inclusion of wild-type and atm-1 mutant plants.
• Model the temporal dynamics of stress response based on sampling across multiple time points from 1.5 to 24 hours.
• Identify gene clusters associated with pathogen response versus DNA metabolism based on the described ATM-dependent transcript induction.

Strengths

• Includes 44 samples with two replicates per condition, providing a basis for statistical analysis.
• Compares two distinct radiation types (gamma photons and HZE particles) and two genetic backgrounds (WT and atm-1 mutant).
• Captures temporal dynamics with sampling across five time points from 1.5 to 24 hours post-treatment.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• File format is listed as BIN, which may require specific tools for access and analysis.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Transcriptomic analysis of irradiated 5-day-old Arabidopsis thaliana seedlings.

Time Range

Sampling occurred over approximately 24 hours following irradiation.

Freshness

Last updated 2026-03-13 19:10:38.801987; freshness should be verified.

Geography

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