In the world of Nerd Culture this is what's interesting today
Todays Date
24 February 2018

Cyanobacteria use their whole bodies as eyeballs

Your daily roundup of research news

Science News Staff

Science Ticker

Round single cells may have been the first creatures to see Earth

HEY LOOK  The spherical bacteria Synechocystis (shown here in false color) can use their single-celled bodies almost like eyeballs. A light shining up from the bottom of this image passes through the cells and focuses on the far side (white arrows highlight examples of focused light). A laser light source in the center (red dot) helped test which way the cells move in reaction to bright spots of light. 

Sponsor Message

After all those years of people looking into microscopes at bacteria, it turns out that some of the bacteria are (sort of) looking back.

Synechocystisbacteria focus light in a roughly eyeball-like process, says Conrad Mullineaux of Queen Mary University of London.  Light shining through their spherical cells focuses on the opposite side, where light-sensitive substances react, he and colleagues report February 9 in eLife

Biologists knew cyanobacteria move toward light, but this method of detecting it was a surprise. Human vision differentiates between two points about 1,000 times better than do the cyanobacteria, but Mullineaux calculates that the bacterial resolution should be enough for Synechocystis to pick out the outline of his head and shoulders bending over them. 

Source: Curated From:

This post has been seen 408 times.


%d bloggers like this: