June 29th, 2024

Bacteria found to produce proteins that act like antifreeze

Certain marine worms in polar waters survive cold temperatures with symbiotic bacteria producing antifreeze-like proteins. Research in Science Advances reveals the worms host bacteria for cryoprotective proteins, preventing freezing. This study showcases microbial assistance in extreme environments.

Read original articleLink Icon
Bacteria found to produce proteins that act like antifreeze

Researchers have discovered that certain marine worms in polar waters survive the cold temperatures with the help of symbiotic bacteria that produce antifreeze-like proteins. The study, published in Science Advances, involved collecting marine worms from Antarctic coastal areas and analyzing them in the lab. The team found that the worms did not produce the antifreeze proteins themselves but instead hosted bacteria that did. By conducting DNA analysis, they identified bacteria genera known to produce cryoprotective proteins found in the worms. This symbiotic relationship allows the worms to avoid freezing to death in the subzero waters. The research sheds light on how some organisms adapt to extreme environments through microbial assistance, highlighting the intricate ecological interactions in polar regions.

Related

California Water Temperatures Drop to Dangerous Levels – Newsweek

California Water Temperatures Drop to Dangerous Levels – Newsweek

California faces dangerously low water temperatures off Crescent City, with swimmers at risk of hypothermia in 30 minutes. NOAA data shows 47.3°F, 3 degrees below normal. Cold spell attributed to upwelling from Oregon.

The First Animal Ever Found That Doesn't Need Oxygen to Survive

The First Animal Ever Found That Doesn't Need Oxygen to Survive

Scientists discovered Henneguya salminicola, a jellyfish-like parasite surviving without oxygen inside salmon. This challenges oxygen-dependency beliefs, shedding light on anaerobic metabolism evolution and life's adaptability to extreme conditions.

Hydrothermal vents on seafloors of 'ocean worlds' could support life

Hydrothermal vents on seafloors of 'ocean worlds' could support life

A study led by UC Santa Cruz researchers suggests lower-temperature hydrothermal vents on ocean worlds like Europa could support life. Computer simulations show sustained circulation for millions of years, aiding fluid systems' longevity. NASA and NSF funded the study.

Why blue animals are so rare

Why blue animals are so rare

Blue animals are rare due to the difficulty of producing a true blue pigment. Some creatures, like the electric blue tarantula and blue lobsters, achieve their blue appearance through unique structural features. Blue in nature is limited by light physics and energy needs, but it can aid in attracting pollinators.

Tardigrade genes edited with an advanced CRISPR technique

Tardigrade genes edited with an advanced CRISPR technique

Researchers at the University of Tokyo used DIPA-CRISPR to edit tardigrade genes, aiming to understand resilience mechanisms. This technique could have medical applications, like preserving human organs. The study reveals tardigrades' genetic traits.

Link Icon 1 comments
By @tomohelix - 4 months
You don't need to be a bacteria to produce antifreeze. Even a frog can do it.

https://en.wikipedia.org/wiki/Moor_frog

Lots of antifreeze out there in the biology world. Most of them aren't useful because ethylene glycol is easy to produce and is quite superior (albeit super toxic) so nobody cares.

Also, the title is wrong. The bacteria is making proteins that produce antifreeze. The protein itself isn't the antifreeze or acting like an antifreeze. Otherwise it would be super wasteful metabolically but would actually make it an interesting evolution adaptation.