Featured Research

from universities, journals, and other organizations

Researchers Find Size Affects Growth Of Microorganisms In Mars-Like Environment

Date:
May 24, 2000
Source:
University Of Arkansas
Summary:
When growing microorganisms under some Mars-like conditions, size does matter — at least if you’re talking about the sample size and surface area involved, according to two University of Arkansas researchers.

When growing microorganisms under some Mars-like conditions, size does matter — at least if you’re talking about the sample size and surface area involved, according to two University of Arkansas researchers.

Tim Kral, professor of biological sciences, and graduate student Curtis Bekkum will present their findings this morning (May 22) at the American Society for Microbiology meeting in Los Angeles.

Last year, Kral became the first scientist to grow microbes under some of the conditions found on Mars. Now he is refining his studies to determine factors that affect the growth of the microbes.

"This is a hodgepodge of things that come together and tell a story," Kral said. "You have to put the parts in place before you can see the whole picture. We are currently teasing out the parts so we can build the picture."

Mars appears unfriendly towards most life forms. The planet currently contains no detectable organic matter and has extremely cold surface temperatures. So for his experiment, Kral sought microorganisms that survive in extreme conditions and thrive on inorganic matter.

He found the ideal microbes in methanogens, anaerobic microorganisms considered to be some of the most primitive life forms on earth. Methanogens can be found deep in the ocean, in the earth’s crust or even in a cow’s stomach, all of which are environments that might be considered harsh like Mars’ surface.

To grow methanogens under some of the conditions found on Mars, Kral and Bekkum used ash from Hawaiian volcanoes — known to share chemical characteristics with Mars soil. They also used carbon dioxide, hydrogen and water while growing the microbes. The methanogens grew successfully in the Mars soil simulant, obtaining all the macro and trace minerals they needed to survive.


Story Source:

The above story is based on materials provided by University Of Arkansas. Note: Materials may be edited for content and length.


Cite This Page:

University Of Arkansas. "Researchers Find Size Affects Growth Of Microorganisms In Mars-Like Environment." ScienceDaily. ScienceDaily, 24 May 2000. <www.sciencedaily.com/releases/2000/05/000522082533.htm>.
University Of Arkansas. (2000, May 24). Researchers Find Size Affects Growth Of Microorganisms In Mars-Like Environment. ScienceDaily. Retrieved August 27, 2014 from www.sciencedaily.com/releases/2000/05/000522082533.htm
University Of Arkansas. "Researchers Find Size Affects Growth Of Microorganisms In Mars-Like Environment." ScienceDaily. www.sciencedaily.com/releases/2000/05/000522082533.htm (accessed August 27, 2014).

Share This




More Space & Time News

Wednesday, August 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

SpaceX’s Falcon 9 Rocket Explodes After Liftoff

SpaceX’s Falcon 9 Rocket Explodes After Liftoff

Newsy (Aug. 23, 2014) — The private spaceflight company says it is preparing a thorough investigation into Friday's mishap. Video provided by Newsy
Powered by NewsLook.com
Did Russia Really Find Plankton On The ISS? NASA Not So Sure

Did Russia Really Find Plankton On The ISS? NASA Not So Sure

Newsy (Aug. 21, 2014) — Russian cosmonauts say they've found evidence of sea plankton on the International Space Station's windows. NASA is a little more skeptical. Video provided by Newsy
Powered by NewsLook.com
Space to Ground: Hello Georges

Space to Ground: Hello Georges

NASA (Aug. 18, 2014) — Europe's ATV-5 delivers new science and the crew tests smart SPHERES. Questions or comments? Use #spacetoground to talk to us. Video provided by NASA
Powered by NewsLook.com
Tiny Satellites, Like The One Tossed From ISS, On The Rise

Tiny Satellites, Like The One Tossed From ISS, On The Rise

Newsy (Aug. 18, 2014) — The Chasqui I, hand-delivered into orbit by a Russian cosmonaut, is one of hundreds of small satellites set to go up in the next few years. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins