During an archaeological dig in a desert area north of Jerusalem 40 years ago, a seed was discovered which was determined to be in pristine condition but had obviously seen many a year.
Now, despite falling from its parent 1,000 years ago, it has grown into a mature tree, and botanists examining it believe it may be an extinct species that was used for medicinal purposes for thousands of years—even receiving a nod in the Bible.
Neither Israeli botanists, nor Dr. Sarah Sallon, a physician who founded the Louis L. Borick Natural Medicine Research Center at Hadassah University Medical Center in Jerusalem, could determine what species it was from simply from the seed covering. So they did what nature intended—they planted it.
Using a well-documented technique that saw 2,000-year-old date palm fruit pits germinate, study coauthor Dr. Elaine Solowey, a researcher emerita at the Center for Sustainable Agriculture at The Arava Institute for Environmental Studies in Israel, soaked the seed in hormones, liquid fertilizer, and water, and then planted it in a pot of sterile seed; then waited.
Despite its genetic code being exposed to environmental stressors for over 1,000 years, the seed sprouted after 5 weeks. The shoot was protected by a caplike feature called an operculum. As the shoot grew, the operculum was shed—leaving something for the team to radiocarbon date. It narrowed down the age of the almost 10-centuries-old seed to between the years 993 and 1202.
Fast forward 14 years and the plant has become a 10-foot-tall tree. Dr. Sallon shared images of the tree, its bark, and its leaves with botanists around the world. One expert suggested it belonged to the genus Commiphora, found across the Arabian Peninsula and parts of Africa. A genetic analysis subsequently revealed this was the case, but a perfect match was lacking.
Dr. Sallon and her team thought it was an extinct species known from history as Judean Balsam, but the best way to confirm that suspicion would be to have some aromatic traces similar to the resins of the myrrh tree to which it is related. However, no such fragrant compounds were detected.
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Instead, the chemical analysis of the leaves identified a group of phytochemicals known as guggulterols which have been observed in a related species called Commiphora wightii that’s known to possess certain cancer-fighting properties in its resin.
A medicinal balm, the origin of which is not known, is mentioned in multiple historical texts including the Bible as ‘tsori,’ and rather than the fragrant Judean Balsam, it’s this tsori that Dr. Sallon and her team believe they have found.
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They must wait until the tree, now 14 years old, produces flower or fruit to know for sure if it’s an extinct species, and if so, how to perhaps keep it alive.
Dr. Louise Colville, senior research leader in seed and stress biology at Royal Botanic Gardens, Kew, in London who wasn’t involved in the research, told CNN that it was a major accomplishment to grow a seed that old and possibly lead to a resurrection of this Biblical botanical.
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“What’s surprising in this story is it was just a single seed and to be able to have one chance for that to germinate is extremely lucky,” she said.
“Working in a seed bank, seeing the potential for that extreme longevity gives us hope that banking and storing seeds that some at least will survive for very long periods of time.”
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Editor’s note: a previous version of this story claimed that Dr. Sallon was responsible for the germination of the plant. Dr. Elaine Sollowey, of the Arava Institute for Environmental Studies, was responsible for germinating and growing the plant.
