When future historians sift through the archives of interplanetary agriculture, they may discover that the first chapter was written not in the laboratories of Silicon Valley but in the furnace winds of the Rubʿ al-Khali. Here, in a landscape that looks like the unfinished draft of Mars, Saudi shrubs such as Haloxylon salicornicum الثَّرْمَد have spent millennia solving problems our most advanced engineers are only beginning to ponder: how to photosynthesize under ultraviolet assault, how to hoard a thimbleful of water as if civilization depended on it, and how to keep breathing when even the air is thirsty.
Where the Arabian Gulf seeps into coastal sabkhas, Salicornia iranica subsp. sinus-persica أشنان completes its life-cycle under raw seawater. Every sodium ion the tide delivers is herded into stem vacuoles, leaving the cytoplasm salt-free and photosynthesis untroubled. Field trials on Saudi Gulf flats show the subspecies out-yields its Mexican cousin, producing seeds that average ~28 % lipid and ~32 % protein — close to NASA’s nutritional target for closed-loop missions — while irrigation water clocks in at 60 dS m⁻¹, roughly twice the salinity of the Red Sea.
Saudi entrepreneurs have already taken the hint. On the Red Sea coast, glasshouses shimmer like mirages, irrigated by filtered brine and cooled by sunlight itself. Tomatoes grow where once only salt flats glared back at the sky. These facilities are prototypes — dry runs for the same sealed domes that could one day cling to the flanks of Olympus Mons. If you wish to glimpse the logistics of a Martian colony, visit these coastal farms at dawn and watch the mist rise over crops watered with the very sea they overlook.
Beneath every desert root lies a second, invisible civilization. Bacteria fix nitrogen out of thin air; fungi stitch filaments around roots, capturing dew before the sun knows it exists. In barren sand, these microbial guilds conjure fertility. Space agencies now bottle them as living starter kits, ready to awaken sterile Martian regolith. We once domesticated wheat; today we domesticate whole ecosystems.
Geneticists at KAUST are decoding the genomes of the Kingdom’s toughest flora, and what they find reads like a survival manual for the Anthropocene. There are genes that repair DNA after ultraviolet strikes, enzymes that keep photosystems running at temperatures that would buckle steel, molecular pumps that flush salt with the dedication the way a mother wipes away food from her new born’s mouth. Spliced into barley or lettuce, these fragments of desert wisdom could feed cities during heatwaves — and astronauts during dust storms on worlds 200 million kilometres away.
The ecological dividend is immediate. Plant a hectare of halophytes and you do more than harvest seed; you anchor wandering dunes, trap carbon faster than many forests, and spare aquifers from another desperate sip. In a single gesture, you transform a liability — saline soil — into an asset that absorbs both carbon dioxide and geopolitical anxiety.
All this turns conservation into strategy. A seed bank in Riyadh is not just a museum of regional heritage; it is a vault of biotechnological blueprints, the equivalent of keeping spare hard drives for civilization. Lose an endemic shrub today and you may delete the code that would have sustained a habitat dome tomorrow. A code that took millions of years to generate. A seed bank that organizations like the Saudi Arabian Botanical Society, which I co-founded, is creating in partnership with academic and public institutions.
Saudi Arabia, then, finds itself in an unexpected position. The Kingdom whose fortune once flowed from fossilized sunlight may help humanity master photosynthesis on alien worlds. It is a narrative twist worthy of any historian’s attention: crude oil lit the twentieth century; desert chlorophyll may light the twenty-second.
We should care, finally, because the frontier between Earth and space is not an escape hatch but a feedback loop. The tricks that keep a plant alive under a Martian dome will make Riyadh more habitable in August, and the dunes tamed by halophytes will offer blueprints for terraforming mindsets long before we terraform planets. In attending to Saudi Arabia’s native flora, we are not merely tending to local heritage — we are rehearsing the future of life itself.
Citations:
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77234468-1
- https://dial.uclouvain.be/pr/boreal/object/boreal:214971/datastream/PDF_01/view
- https://irannature.areeo.ac.ir/article_126113.html?lang=en
- https://agfundernews.com/red-sea-farms-raises-1-9m-to-grow-tomatoes-in-the-desert-using-saltwater?
- https://innovation.kaust.edu.sa/out-of-the-lab-red-sea-farms/?utm_
- https://www.sciencedirect.com/science/article/abs/pii/S0196890424008550?utm
- https://www.sciencedirect.com/science/article/pii/S1319562X16000425?utm
- https://ntrs.nasa.gov/api/citations/20080001445/downloads/20080001445.pdf?utm
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:165853-1
Leave a Reply