Science Fiction
Dictionary

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Bacteria Behave Differently In Space

Researchers from CU Boulder’s BioServe Space Technologies have found that Earth bacteria behave in unexpected ways in outer space. They tried culturing E. coli on the International Space Station; different concentrations of gentamicin sulfate were used to see if the antibiotic takes care of the "infection" like it does on Earth.

The response of the cultured bacteria included a 13-fold increase in cell numbers and a 73 percent reduction in cell volume size compared to an Earth control group, said BioServe Research Associate Luis Zea, lead study author.

“We knew bacteria behave differently in space and that it takes higher concentrations of antibiotics to kill them,” said Zea. “What’s new is that we conducted a systematic analysis of the changing physical appearance of the bacteria during the experiments.”

Because there are no gravity-driven forces in space like buoyancy and sedimentation, the only way the ISS bacteria can ingest nutrients or drugs is through natural diffusion, said Zea. The large decrease of the bacteria cell surface in space also decreases the rate of molecule-cell interaction, which may have implications for more effectively treating astronauts with bacterial infections in space.

The new study also showed the bacterial cell envelope—essentially its cell wall and outer membrane—became thicker, likely protecting the bacteria even more from the antibiotic, said Zea. The E. coli bacteria grown in space also tended to form in clumps, perhaps a defensive maneuver of sorts that may involve a shell of outer cells protecting the inner cells from antibiotics, said Zea.

Science fiction writer Bruce Sterling wrote about something similar in his 1985 novel Schismatrix. He called them "sours":

humanity and its symbionts had thrown aside the blanket of atmosphere...The circumlunar worlds had shields of imported lunar rubble whole meters deep, but they could not escape the bursts of solar flares and the random shots of backshots of cosmic radiation.

Without bacteria, the soil was a lifeless heap of imported lunar dust. With them, it was a constant mutational hazard.

The Republic struggled to control its Sours...Mutant fungi had spread like oil slicks, forming a mycelial crust beneath the surface of the soil

Via University of Colorado.

Scroll down for more stories in the same category. (Story submitted 9/4/2017)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Space Tech ")

Capture Asteroids In A Bag
'... just as a small boy catches a swift ball in his cap.' - VE Thiessen, 1947.

Space 'Hurricane' Has Been Seen
'... it was the biggest of the four hundred odd storms raging in the Fifty Suns region.' - AE van Vogt, 1943.

Sole Morphing Astronaut Boots - A New Pair Of Moon Boots?
'It’s an ideal device for kangarooing along in lunar gravity.' - James P. Hogan, 1977.

Mercury Capsule Ablative Shielding
'...a synthetic which air-friction would erode away.' - Doc Smith, 1934.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Implantable Covid-Detecting Microchip Developed By DARPA
'Employees... were implanted with advanced microprocessors...'

SpaceX Requests Starlink For Starship
'... sweating, heat-blistered engineers at every interplanetary radiograph station on three planets.'

SF Writers Predicted John Deere Autonomous Tractors
'The huge plow... seemed to shake itself - and began to move back southward.'

DARPA Funding AI Fighter Pilots
'Cultured brains on a slab.'

StoryFile To Help William Shatner Become Landru
"I am Landru. I am he! All that he was, I am."

Telehealth Drones To The Rescue
'A shadow passed over him, and he looked up.'

Capture Asteroids In A Bag
'... just as a small boy catches a swift ball in his cap.'

Sony Pocket Air Conditioner Is Phil Dick's Idea!
'... he went to the hall closet to get his pith helmet and his mandatory cooling-unit.'

Is It Possible To GROW Planes And Vehicles?
'These are your rudimentary seed packages...'

Guard Dog Robot Security Check
'We still use people at the main gates, but here it's an automated sentry.'

Sheepskin Parchment Helped Medieval Lawyers Prevent Fraud
'The single sheet he held, and even the words and signatures upon it, were all integral parts of a single giant molecule...'

Space 'Hurricane' Has Been Seen
'... it was the biggest of the four hundred odd storms raging in the Fifty Suns region.'

PR2 Fencing Robot Perfect For Kwisatz Haderach-in-training
'Now, we'll work on your timing. Let me see you catch that thing sinister.'

Sole Morphing Astronaut Boots - A New Pair Of Moon Boots?
'It’s an ideal device for kangarooing along in lunar gravity.'

Mice Gestate In Mechanical Womb
'... in the Decanting Room, the newly-unbottled babes uttered their first yell of horror and amazement.'

3rd Century BC Gold Bee Is Just The Start
Bees knees, I order you to freeze!

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.