I have no doubt in my mind

And they highlight the importance of permafrost gucci outlet itself in the "search of an ancient genetic pool, that of preexisting life, which hypothetically has long since vanished from the earth's surface," they wrote.
The previous record for viable regeneration of ancient flora was with 2,000-year-old date palm seeds at the Masada fortress near the Dead Sea in Israel.
The latest success is older by a significant order of magnitude, with researchers saying radiocarbon dating has confirmed the tissue to be 31,800 years old, give or take 300 years.
The study, to appear in Tuesday's issue of the Proceedings of the National Academy of Sciences, described the discovery of 70 squirrel hibernation burrows along the bank of the lower Kolyma river, in Russia's northeast Siberia, and bearing hundreds of thousands of seed samples from various plants.
"All burrows were found at depths of 20-40 meters (65 to 130 feet) from the present day surface and located in layers containing bones of large mammals such as mammoth, wooly rhinoceros, bison, horse, deer, and other representatives of fauna" from the Late Pleistocene Age.
The permafrost essentially acted as a giant freezer, and the squirreled-away seeds and fruit resided in this closed world -- undisturbed and unthawed, at an average of -7 degrees Celsius (19 Fahrenheit) -- for tens of thousands of years. Gucci boots for men, cheap gucci men boots outlet 2012.
Scientists were able to grow new specimens from such old plant material in large part because the burrows were quickly covered with ice, and then remained "continuously frozen and never thawed," in effect preventing any permafrost degradation.
In their lab near Moscow, the scientists sought to grow plants from mature S. Stenophylla seeds, but when that failed, they turned to the plant's placental tissue, the fruit structure to which seeds attach, to successfully grow regenerated whole plants in pots under controlled light and temperature.
"This is an amazing breakthrough," Grant Zazula of the Yukon Paleontology Program at Whitehorse in Yukon Territory, Canada, told The New York Times.
"I have no doubt in my mind that this is a legitimate claim."
Scientists have known for years that certain plant cells can last for millennia under the right conditions.
Some earlier claims of regeneration have not held up to scientific scrutiny, but the Yashina/Gilichinsky team was careful to use radiocarbon dating to ensure that the seeds and fruit found in the permafrost were not modern contaminants from S. Stenophylla,Gucci slippers for men, cheap gucci slippers 2012 new arrival sale which still grows on the Siberian tundra.