Bacteria could be used to improve the fertility of lunar soil to allow us to live on the Moon, scientists have said.
The breakthrough new study combined three different bacteria on lunar soil to see how it would affect the growth of a plant – and found that it dramatically helped improve the fertility of material taken from the Moon. Adding the three bacteria to the soil helped the researchers grow the planet, which was a relative of tobacco named benth.
The bacteria work by increasing the amount of a kind of phosphorus in the soil. That is a major nutrient for plants and adding more of it means that plants will grow more easily and populous.
Previous studies have shown that it is possible to grow cress using lunar soil. But it has been found to be difficult to support plants, and studies have shown that it is actually worse than volcanic ash from our own planet.
What’s more, lunar soil has less nitrogen, which is required to grow plants. What phosphorus there is also comes in a form that cannot be used by plants.
If we are to live on the Moon, therefore, scientist will have to find new ways to grow plants. And the researchers suggest that the breakthrough trio of bacteria could be a key step towards that aim.
That in turn will help support life in future lunar bases, the researchers note in a new study published today.
The work is described in a new paper, ‘Phosphorus-solubilizing bacteria improve the growth of Nicotiana benthamiana on lunar regolith simulant by dissociating insoluble inorganic phosphorus’ published in Communications Biology.
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