5,486 results
- Planetary Science
Bacteria that can make humans sick could survive on Mars
Experiments suggest that common illness-causing microbes could not only survive on the Red Planet but also might be able to thrive.
- Health & Medicine
A protein found in sweat may protect people from Lyme disease
The protein stopped Borrelia burgdorferi, a bacterium that is transmitted by ticks, from growing in dishes or infecting mice.
- Life
Bacteria fossils hold the oldest signs of machinery needed for photosynthesis
Microfossils from Australia suggest that cyanobacteria evolved structures for oxygen-producing photosynthesis by 1.78 billion years ago.
- Life
This marine alga is the first known eukaryote to pull nitrogen from air
An alga’s bacterial symbiote has evolved into an organelle that turns atmospheric nitrogen into ammonia, making the alga unique among eukaryotes.
- Life
How disease-causing microbes load their tiny syringes to prep an attack
Tracking individual proteins in bacterial cells reveals a shuttle-bus system to load tiny syringes that inject our cells with havoc-wreaking proteins.
- Health & Medicine
Here’s why pain might last after persistent urinary tract infections
Experiments in mice reveal that the immune response to a UTI spurs nerve growth in the bladder and lowers the pain threshold.
- Life
Human cancer cells might slurp up bacteria-killing viruses for energy
In the lab, human cancer cells show signs of cell growth after ingesting bacteria-killing viruses, a hint our cells might use bacteriophages as fuel.
- Animals
The right bacterial mix could help frogs take the heat
Wood frog tadpoles that receive a transplant of green frog bacteria can swim in warm waters, revealing another role for microbiomes: heat tolerance.
- Humans
These are the chemicals that give teens pungent body odor
Steroids and high levels of carboxylic acids in teenagers’ body odor give off a mix of pleasant and acrid scents.
- Life
Young squash bugs seek out adults’ poop for an essential microbe
Squash bug nymphs don’t rely on their parents to pick up a bacterium they’d die without. They find it on their own.
- Agriculture
Mixing up root microbes can boost tea’s flavor
Inoculating tea plant roots with nitrogen-metabolizing bacteria enhances synthesis of theanine, an amino acid that gives tea its savoriness.
- Life
Coral reefs host millions of bacteria, revealing Earth’s hidden biodiversity
A new estimate of microbial life living in Pacific reefs is similar to global counts, suggesting many more microbes call Earth home than thought.
