5,618 results
5,618 results for: Bacteria
- Plants
Give and Take: Plant parasites dole out genes while stealing nutrients
New evidence suggests that parasitic plants can transfer their own genes into host plants.
- Tech
Special Treatment: Fuel cell draws energy from waste
Researchers have created a fuel cell that breaks down organic matter in wastewater and, in the process, generates small amounts of electricity.
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Quite a Switch
Cells use ribonucleic acids that bind to small molecules such as vitamins to control gene activity.
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Sound Off
By using bits of RNA to eliminate the effects of selected genes, scientists are developing new ways to study gene function and treat diseases.
- Plants
Rewriting the Nitrogen Story: Plant cycles nutrient forward and backward
For the first time, a green plant has been found to break down nitrogen-containing compounds into the readily usable form of nitrates, a job usually done by microbes.
- Health & Medicine
Could refrigeration explain Crohn’s rise?
Crohn's disease, marked by inflammation of the small intestine, could be caused by refrigeration of meats, a process that selects for hardy bacteria that handle cold temperatures well, researchers hypothesize.
- Health & Medicine
Viruses, but not bacteria, tied to mental decline
Past infection by multiple common viruses may contribute to cognitive decline in some elderly people.
- Animals
Poison Source: Toxic birds may get chemical from beetle
When some poisonous New Guinea birds eat certain tiny beetles, they may be stocking up on the toxic substance they use to defend themselves.
- Earth
Deep Squeeze: Experiments point to methane in Earth’s mantle
Although today's fossil fuel reserves reside in Earth's crust, a new study suggests that hydrocarbon fuel might also nestle deep in the mantle, at depths of 100 kilometers or more.
- Health & Medicine
Compound in salsa kills off Salmonella
Cilantro, one of the key ingredients of salsa, harbors an antibacterial compound that attacks Salmonella bacteria.
- Earth
Toxic cleanups get a boost
Researchers have developed and field-tested a new technique that identifies specific soil microbes that can break down environmental pollutants.
- Earth
Two microbes team up to munch methane
Aggregates of two different microorganisms in methane-bearing ocean sediments collected off the Oregon coast appear to collaborate to consume methane despite a lack of oxygen.
