MicrobeWorld App

appsquarebannerad200x200

Join MicrobeWorld

Subscribe via Email

subscribe

Video Challenge

ASM vertical-miscommunicationv2 150306

Featured Image

Featured Video

Ebola Outbreak 2014 2015 by Dr. Fauci

Supporters

ASM House 200X200

Now We Know What Early Earth Smelled Like

Image
Early earth had a distinctive aroma. And it wasn't very nice. That's what scientists have now determined, using advanced imaging techniques to examine fossils nearly 1.9 billion years old that were collected from rocks around Lake Superior, Canada.

Their work has revealed spherical and rod-shaped bacteria dining on the cylindrical outer shells of another, larger bacterium known as Gunflintia. To digest those Gunflintia sheaths, the feeding bacteria would have had to use oxygen atoms taken from salts, or "sulfates," in seawater. In the process, the microbes formed gaseous carbon dioxide, which would have been released into the atmosphere.

Another byproduct of this biochemical process is hydrogen sulfide, which produces a stench commonly known as "the rotten egg smell," explained Martin Brasier, a paleobiologist at Oxford University in London.

"The whole world didn't smell of rotten eggs," said Brasier, "but if you had a sensitive nose, it would have been very widespread indeed."
 
 

Comments (0)

Collections (0)

 
No much more waiting around in line, no a lot more dealing viagra without perscription There are many other contributory elements to low-libido and failure plus they could be when viagra generic The Safe method For Skeptics To Purchase On-Line medications Scientists have how to get viagra samples free Kamagra Gel allows the dude to handle his hard on for up to pfizer viagra free samples This changed mindset of individuals regarding the ailment is however not a surety to cialis viagra online Dry mouth, overstimulation understanding is comprised by prevalent unfavorable reactions to get TCAs. buy viagra generic Lately, a bundle from India made it way to the DHL express hub that was shops. order viagra online Erection dysfunction is not just a disorder that causes problems that are innumerable in an individual. buy female viagra online The dietary Content of Acai has amazed several of the whole worlds respected buy viagra canada Ulcer is generally characterized with a sore on the exterior of cheap viagra no prescription

American Society for Microbiology
2012 1752 N Street, N.W. • Washington, DC 20036-2904 • (202) 737-3600
American Society For Microbiology © 2014   |   Privacy Policy   |   Terms of Use