Ultra-Small Bacteria – The Smallest Life Forms On Earth?

09.03.2015. Zanimljivosti

Scientists from Lawrence Berkeley National Laboratory and the University of California, Berkeley have recently published a paper in Nature Communications describing the first detailed microscopic images of so-called “ultra-small bacteria” that are believed to represent the lowest size limit possible for life on Earth. Scientists have debated the existence of these tiny bacteria for decades since there was never such a detailed observation of the weird microbes – but the debate now seems to be over.

For their research, the scientists filtered groundwater down to 0.2 microns. Water filtered to this level is generally considered sterile, but it turned out that the water sample was still teeming with the incredibly tiny microbes.

Dr. Jill Banfield, a senior scientist in Berkeley Lab’s Earth Sciences Division said: “These newly described ultra-small bacteria are an example of a subset of the microbial life on Earth that we know almost nothing about. They’re enigmatic. These bacteria are detected in many environments and they probably play important roles in microbial communities and ecosystems. But we don’t yet fully understand what these ultra-small bacteria do.”

Read more:

http://www.nature.com/ncomms/2015/150227/ncomms7372/full/ncomms7372.html

http://www.techtimes.com/articles/36458/20150301/stunning-cryo-electron-tomography-image-reveals-innards-of-ultra-small-bacteria.htm

http://www.huffingtonpost.com/2015/03/02/smallest-life-on-earth-bacteria_n_6783382.html

 
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