Navigation Links
Back to life after 1,500 years
Date:3/17/2014

Researchers from the British Antarctic Survey and Reading University have demonstrated that, after over 1,500 years frozen in Antarctic ice, moss can come back to life and continue to grow. For the first time, this vital part of the ecosystem in both polar regions has been shown to have the ability to survive century to millennial scale ice ages. This provides exciting new insight into the survival of life on Earth.

The team, reporting in Current Biology this week, observed moss regeneration after at least 1,530 years frozen in permafrost. This is the first study to show such long-term survival in any plant; similar timescales have only been seen before in bacteria. Mosses are known to survive environmental extremes in the short-term with previous evidence confirming up to a 20 year timescale for survival. Their potential to survive much longer timescales had not previously been examined.

Mosses are an important part of the biology of both polar regions. They are the dominant plants over large areas and are a major storer of fixed carbon, especially in the north.

Co-author Professor Peter Convey from the British Antarctic Survey explains:

"What mosses do in the ecosystem is far more important than we would generally realise when we look at a moss on a wall here for instance. Understanding what controls their growth and distribution, particularly in a fast-changing part of the world such as the Antarctic Peninsula region, is therefore of much wider significance."

The team took cores of moss from deep in a frozen moss bank in the Antarctic. This moss would already have been at least decades old when it was first frozen. They sliced the frozen moss cores very carefully, keeping them free from contamination, and placed them in an incubator at a normal growth temperature and light level. After only a few weeks, the moss began to grow. Using carbon dating, the team identified the moss to be at least 1,530 years of age, and possibly even older, at the depth where the new growth was seen.

According to Professor Convey:

"This experiment shows that multi-cellular organisms, plants in this case, can survive over far longer timescales than previously thought. These mosses, a key part of the ecosystem, could survive century to millennial periods of ice advance, such as the Little Ice Age in Europe.

"If they can survive in this way, then recolonisation following an ice age, once the ice retreats, would be a lot easier than migrating trans-oceanic distances from warmer regions. It also maintains diversity in an area that would otherwise be wiped clean of life by the ice advance.

"Although it would be a big jump from the current finding, this does raise the possibility of complex life forms surviving even longer periods once encased in permafrost or ice."


'/>"/>

Contact: Paul Seagrove
psea@bas.ac.uk
44-012-232-21414
British Antarctic Survey
Source:Eurekalert

Related biology news :

1. Turings theory of morphogenesis validated 60 years after his death
2. After death, twin brains show similar patterns of neuropathologic changes
3. Almost 200 new species of parasitoid wasps named after local parataxonomists in Costa Rica
4. Dartmouth study shows US Southwest irrigation system facing decline after 4 centuries
5. UTMB study examines hospital readmission rates after inpatient rehabilitation
6. Permanent changes in brain genes may not be so permanent after all
7. Exposures to some phthalates fall after federal ban
8. After a 49-million-year hiatus, a cockroach reappears in North America
9. ADC evaluation for the changes of infarction core and remote regions after MCAO
10. Mass spectrometer detection of 10 protein spots after acute high-altitude HBI
11. A magnetic nanoparticles-based method for DNA extraction from the saliva after stroke
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/25/2016)...  Glencoe Software, the world-leading supplier of image data ... provide the data management solution OMERO Plus for the ... Photo - http://photos.prnewswire.com/prnh/20160125/325328LOGO ... Phenotypic analysis measures the characteristics and behavior of ... states such as health and disease, the presence or ...
(Date:1/20/2016)... 2016   MedNet Solutions , an innovative SaaS-based ... clinical research, is pleased to announce the attainment of ... the result of the company,s laser focus on (and ... , it,s comprehensive, easy-to-use and highly affordable cloud-based technology ... Key MedNet growth achievements in 2015 include: ...
(Date:1/13/2016)... DUBLIN , January 13, 2016 ... has announced the addition of the  ... - Estimation & Forecast (2015-2020)" ... http://www.researchandmarkets.com/research/7h6hnn/india_biometrics ) has announced the ... & Identification Market - Estimation & ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... 2016  Neurocrine Biosciences, Inc. (NASDAQ: NBIX ) today announced ... 2015. --> --> For ... of $29.3 million, or $0.34 loss per share, compared to a ... the same period in 2014. For the year ended December 31, ... $1.05 loss per share, as compared to a net loss of ...
(Date:2/11/2016)... , Feb. 11, 2016  Wellcentive today ... Portland, Oregon -based community care ... provide population health analytics, quality reporting and care ... FamilyCare strengthen its team of quality managers, analysts ... to the provider groups serving FamilyCare members. ...
(Date:2/11/2016)... York (PRWEB) , ... February 11, 2016 , ... ... instruments for more than 150 years, continues today to pursue the highest level ... line of analytical instruments: the AR9 Refractometer and the AR5 Refractometer. Accurate, ...
(Date:2/10/2016)... 2016  The Maryland House of Delegates and House ... University of Maryland School of Medicine Dean E. ... Maryland Medical System President and CEO Robert Chrencik ... highest honor given to the public by the leader ... Reece and Mr. Chrencik for their contributions to ...
Breaking Biology Technology: