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Radiation quality matters: morphological and biochemical responses of Brassica rapa microgreens to X-rays, C-ions, and Fe-ions
No full textRadiation type and dose distinctly modulate microgreens development, revealing trait-specific thresholds where X-rays induce hormesis, carbon ions delay differentiation, and iron ions enhance biochemical balance with moderate anatomical disruption. As space exploration progresses and controlled-environment agriculture becomes increasingly relevant under extreme conditions, understanding how ionizing radiation affects plant development is crucial. Ionizing radiation poses a major constraint in space cultivation systems, also playing a role in terrestrial stress scenarios. Despite growing interest in radiation biology, few studies have systematically compared plant responses to different radiation types with distinct linear energy transfer (LET). In this study, seeds of Brassica rapa L. were exposed to increasing doses of X-rays (low-LET), carbon ions, and iron ions (high-LET). Seed germination, morpho-anatomical, and biochemical traits of plants were assessed up to the microgreens stage. Plant responses were both dose- and radiation-specific. Specifically, X-rays triggered a hormetic response at low doses (1 Gy), with a decline in several analyzed traits at higher doses. Carbon ions increased leaf expansion but reduced the content of pigments, proteins, and the structural investment, suggesting a delayed tissue differentiation and low-cost acclimation mechanism under stress. Iron ions promoted a coordinated upregulation of biochemical defenses and moderate anatomical changes. Overall, radiation quality induced distinct acclimation strategies in B. rapa, influencing the balance between growth, structural integrity, and defense mechanisms, highlighting its notable radioresistance. Moreover, identifying trait-specific thresholds and response patterns suggests that different radiation types could be selectively applied to modulate specific functions (e.g., biomass or antioxidants promotion, anatomical adjustments) based on desired outcomes. These findings provide valuable insights into how different ionizing radiation types impact plant responses, addressing a critical gap in space-oriented research and guiding strategies to optimize plant growth in extraterrestrial environments
Supporting data for article 'Experimental study of laser plasma instabilities with broadband laser pulses at the GSI PHELIX laser facility' in the 'Special Issue on Proceedings of the 20th Direct-Drive and Fast Ignition Workshop, Darmstadt 19-22 May 2025'
No full textThis respository consists of the data plotted in figures that are included in the article 'Experimental study of laser plasma instabilities with broadband laser pulses at the GSI PHELIX laser facility', as well as the figures themselves
Luminosity predictions for the first three ionization stages of W, Pt, and Au to probe potential sources of emission in kilonova
No full textInfluence of the Metal Support─Catalyst Contact on the Performance of NiO-Based Evolution Electrocatalysts
No full textComparison of Spin Manipulation with Spatially Oscillating Longitudinal or Transversal Magnetic Fields
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