Scientists have brought the first results of the longest in the history of science experiment
Ucheny Group of the United Kingdom (Scotland), Germany and the United States summed up the first results of the long-term scientific experiment in history. The purpose of the experiment is to study the viability of the microbes in the insulation for the 500-year period. Final results will be announced already in 2514, and now microbiologists have presented the results of the first five years of the study - about 1 percent of the total length of the experiment, according to a paper published in the journal PLOS ONE.
The object of the study is Bacillus subtilis (Bacillus subtilis), opened in 1835, and is one of the most studied species of the genus Bacillus. According to scientists, the bacterial spores are extremely resistant forms of life. In response to the extreme conditions they can rearrange their DNA to adapt to them.
The longest experiment in the history of science must respond to several questions that will ultimately lead to a better understanding of how to develop the life on our planet for more than 3, 5 billion years ago, and whether the existence of life on other planets with other environmental conditions.
In particular, the researchers are interested in how long the viability is maintained in the absence of moisture and air, how fast bacteria reborn, returning to a familiar environment, what is the rate of destruction of the dispute, and when this happens?
When preparing the experiment dried hay bacillus bacteria are placed in hermetically sealed flasks hundreds. The flasks were placed in two boxes - one is located in the University of Edinburgh, the other - at the London Natural History Museum. A few samples are exposed to very low temperatures and radiation. During the first 24 years from the start of the experiment every 2 years, scientists will discover a few bulbs and check the status of bacteria. After that, check the samples will be carried out one time in 25 years. In summing up the results of the first scientists note that complete isolation had no effect on the state of the hay bacillus. Samples were as viable as the beginning of the experiment. Part Bacillus subtilis samples exposed to a low temperature (-80 degrees Celsius) and radiation killed, but the surviving researchers found no changes in the DNA - it does not differ from the sample of bacteria that are in sealed flasks.
Researchers are well aware that the final results of the experiment will be able to take only descendants after many generations, so all the results of the first years of observations carefully outlines how digital media and on paper in view of all of the rules, which will also be copied every 25 years, and later transferred to the future generations.
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