Cooper’s black orchid may have finally found its perfect fungal match.
is a scourge on Douglas fir trees — a farmed nonnative tree in New Zealand — but seems to provide Cooper’s black orchid seeds with the nutrients and minerals they need to germinate. The next step is to grow Cooper’s black orchid plants from seedlings. That will reveal whether the fungus that helps seeds germinate is the same one that sustains the adult plant.
In the meantime, seeds and fungi are kept in a chilly slumber in one of the lab’s sterile rooms. Seeds are stored inside an incubator at –18° Celsius, while fungi are stored inside a cryogenic container with liquid nitrogen at –200° C. “If we lose [the orchid entirely], we have seeds banked in the lab,” van der Walt says. “We can at least grow them back — we know we can get that far.”fungi helped the speck-sized seeds of Cooper’s black orchid germinate.
Ultimately, researchers want to seed wild areas with this plant-fungi pair to boost the population — without all the lab steps. Though there are still other factors to work out to make wild growth a reality, the lab technique is “a powerful way to prevent extinction,” van der Walt says, not only for the Cooper’s black orchid but other endangered species, too.
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