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shared by Mars Base on 28 May 13 - No Cached

After hundreds of years buried under ice, mosses can regrow
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The revived plants come from Canada’s Ellesmere Island, where the Teardrop Glacier has retreated since the end of a cold period in 1550 to 1850 known as the Little Ice Age
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On recently exposed ground
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found clumps of mosses that looked dead. But among the brown tangles, the team noticed a few green sprigs
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The team took brown moss samples back to the lab and used radiocarbon dating to determine that they had lived about 400 years ago
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Based on the glacier’s retreat rate, the researchers estimated the plants had been uncovered for less than two years.
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the team ground up some of the plants and gave them nutrients, water and light
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From seven of 24 samples, a total of four moss species grew
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The budding plants didn’t come from seeds or spores
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In moss
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any cell can be reset, almost like a stem cell, to grow a new plant
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how long a moss cell can stay viable is “anyone’s guess,”
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the findings suggest that the regenerated mosses may help repopulate ecosystems after glaciers retreat
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