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The paper reports that plants can grow in actual lunar regolith, with Apollo 11 regolith causing the most stress and Apollo 17 the least. Experiments used Arabidopsis thaliana grown in Apollo 11, 12, 17 regolith and lunar soil simulant. Plants showed stunted growth, stress responses, and varied stress levels across regolith samples. The paper discusses the growth of plants in lunar regolith from Apollo 11, 12, and 17 missions, highlighting chemical differences between regolith and simulants. It notes stress responses in plants and the importance of material sourcing for plant growth success.
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Arabidopsis thaliana growth in lunar regolith
plant growth | lunar agriculture
Stress response in plants grown in lunar regolith
stress analysis | plant biology
Gene analysis on plants after 20 days of growth
biological
Plant growth in lunar regolith
biological
XPS surface chemistry
Surface chemical characterization | Benchmarking and comparison
root system stunting
more stunted root systems none
growth rate
slower growth none
leaf canopy extent
less extensive leaf canopies none
leaf pigmentation
deeper green or purple leaf pigmentation none
chemical differences
iron oxidation state
stress responses
salt, metals, reactive oxygen species
Fe oxidation state
characterized by surface-sensitive spectroscopy