Posted: March 18th, 2014 | Author: Verity Penfold | Filed under: Favorite New Thought, From The Web | Tags: Chukotka, Pithovirus sibericum, Russia, Siberia, Worlds Biggest Virus | Comments Off on Scientists Wake Virus After 30,000 Year Slumber
French scientists say they have revived a giant but harmless virus that had been locked in the Siberian permafrost for more than 30,000 years.
Wakening the long-dormant virus serves as a warning that unknown pathogens entombed in frozen soil may be roused by global warming, the scientists said.
The virus, Pithovirus sibericum, was found in a 30-metre-deep sample of permanently frozen soil taken from coastal tundra in Chukotka, near the East Siberia Sea, where the average annual temperature is -13.4 degrees Celsius.
The team thawed the virus and watched it replicate in a culture in a petri dish, where it infected a simple single-cell organism called an amoeba.
Radiocarbon dating of the soil sample found that vegetation grew there more than 30,000 years ago, a time when mammoths and Neanderthals walked the Earth, according to a paper published in the US journal Proceedings of the National Academy of Sciences :: Read the full article »»»»
Posted: February 22nd, 2012 | Author: M.Aaron Silverman | Filed under: Biology, Cankler Science News | Tags: Caryophyllaceae, Cryopreservation, Fossil, Fossil Squirrel Burrows, Permafrost, Pleistocene, Siberia, Silene Stenophylla | Comments Off on RUSSIA: Ice Age Flower Brought Back to Life
A new paper, to appear in this weeks issue of Proceedings of the National Academy of Sciences, reports that fruit seeds stored away by squirrels more than 30,000 – Late Pleistocene Age – years ago, found in Siberian permafrost have been regenerated into full flowering plants by scientists in Russia. The seeds of the herbaceous Silene stenophylla plant are far and away the most ancient plant material to have been brought back to life, said lead researchers Svetlana Yashina and David Gilichinsky of the Russian Academy of Sciences.
The age of the flower was confirmed by radiocarbon dating at 31,800 years, passing the record for viable regeneration of ancient flora held at 2,000 years by date palm seeds found near the Dead Sea in Israel. The latest findings could be a landmark in research of ancient biological material, demonstrating the importance of permafrost – the natural cryopreservation of plant tissue over many thousands of years. The discovery may be invaluable to the search of ancient gene pools of pre-existing life, which hypothetically has long since vanished from the earth’s surface”, the researchers wrote. Read the full article »»»»