microbes in space
Bacterial Growth in Space. To tackle Deinococci survivability in space we utilize an integrative -omics approach combined with electron microscopy assisted investigations and elemental (Manganese) ultrastructural analysis.
“Spaceflight and modeled microgravity effects on microbial growth and virulence.” Applied Microbiol. The researchers said this could lead to eventually developing safety measures for astronauts during spaceflights, although right now the risk to spaceflyers (if any) is unclear.Astronauts collected the samples during three flights spanning 14 months, a time span that allowed the researchers to see how the microbial and fungal populations changed over locations and during time. Listen on SoundCloud; More from this episode; The International Space Station, which hosts a very familiar microbiome.
One factor impacting bacteria in space is microgravity or the little gravity that is present in spacecrafts. Microbes in Space: JPL Researcher Explores Tiny Life | NASA
Ichijo T, Hieda H, Ishihara R, Yamaguchi N and Nasu M. “Bacterial Monitoring with Adhesive Sheet in the International Space Station-“Kibo”, the Japanese Experiment Module.” Microbes Environ, 2013. "In my projects my team and I want to understand the molecular mechanisms behind the microbial survivability in space, i.e., to answer the question how these little microbes can cope with the harsh and drastic environment of outer space", says Milojevic.The space travellers: Dehydrated cells of D. radiodurans deposited in aluminum hardware and ready for the exposure to outer space outside of the International Space Station.
How they react to these harsh conditions is the interest of astrobiologists. The microbial ecosystems on the International Space Station are no different. From left to right: Elke Rabbow and Petra Rettberg (Institute of Aerospace Medicine, DLR), Tetyana Milojevic, Wolfram Weckwerth and Emanuel Ott (University of Vienna). The space mission aboard NASA’s SkyLab in 1978 documented one of the first accounts of microbial growth in outer space.
Space equipment was monitored for viable growth of different microbial species – namely, More recently, KIBO space station has been undergoing constant bacterial sampling and monitoring to document any forms of microbial growth.
"The authors found that while fungal communities were stable, microbial communities were similar across locations but changed over time," researchers said in the statement.
The potential of microbes stems from their biological diversity. 28(2):264-268. doi:10.1264/jsme2.ME12184. These are some of the questions that researchers at City of Hope, working with NASA’s Jet Propulsion Laboratory, set out to answer. Lanius, Roger D. “Can we colonize the solar system?
This is not the case for the microbes which astrobiologist Tetyana Milojevic currently investigates.
Just like on Earth, there is a robust population of bacteria and fungi on the Most of the microbes are associated with humans, particularly the bacteria Staphylococcus (26% of total bacteria isolated), Pantoea (23%) and Bacillus (11%), according to While it sounds like a gross combination, the scientists noted in the statement that similar bacteria are found in mundane Earth environments such as offices, gyms and hospitals, so the space station is similar to these other "built environments" frequented by humans.It's unclear if bacteria that sometimes cause disease on Earth, such as Staphylococcus aureus and Enterobacter, could cause disease in ISS astronauts, researchers said in the statement, because that depends on things such as how these organisms function in microgravity and how healthy the astronaut is to start. Every ecosystem, big or small, creates a new opportunity for microbes to live, die, multiply or change and to impact its fragile environment.
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