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Cell Biology News
Wed, 29 Jul 2015 11:08:38 EDT
Atomic view of bacterial enzymes that help human digestion
A group of researchers has reached deep into the human gut, plucked out a couple enzymes produced by bacteria residing there and determined their biological activities and molecular structures -- details that should shed new light on how we digest many of the foods we eat.
Wed, 29 Jul 2015 11:07:31 EDT
Yarn from slaughterhouse waste
Researchers have developed a yarn from ordinary gelatine that has good qualities similar to those of merino wool fibers. Now they are working on making the yarn even more water resistant.
Wed, 29 Jul 2015 08:59:22 EDT
Stressed out plants send animal-like signals
For the first time, research has shown that, despite not having a nervous system, plants use signals normally associated with animals when they encounter stress.
Tue, 28 Jul 2015 16:24:16 EDT
Researchers provide new details about sea stars' immunity
A study examining sea stars dying along the West Coast provides new clues about the starfish's immune response and its ability to protect a diverse coastal ecosystem. The team found that the sea stars have an immune response that is characterized by various types of immunities and that they have multiple aspects of the toll-signaling pathway, which is an important recognition.
Tue, 28 Jul 2015 16:24:10 EDT
Sleepy fruitflies get mellow
Whether you're a human, a mouse, or even a fruitfly, losing sleep is a bad thing, leading to physiological effects and behavioral changes. Researchers used fruitflies to probe deeper into the cellular and molecular mechanisms that govern aggression and sleep and found that sleep deprivation reduces aggression in fruitflies and affects their reproductive fitness. They identified a related molecular pathway that might govern recovery of normal aggressive behaviors.
Tue, 28 Jul 2015 11:05:32 EDT
'Seeing' molecular interactions could give boost to organic electronics
For the first time, researchers have directly seen how organic molecules bind to other materials at the atomic level. Using a special kind of electron microscopy, this information can lead to increasing the life span of electronic devices, for example.
Tue, 28 Jul 2015 10:12:20 EDT
Fatty acid increases performance of cellular powerhouse
An entirely new control mechanism that regulates the function of mitochondria, the powerhouses of the cell, has been discovered by researchers. Surprisingly, a fatty acid is playing a key role in this process. The scientists have now reported that using fatty acid as a food additive improved disease symptoms in flies that suffer from Parkinson's-like symptoms due to dysfunctional mitochondria.
Tue, 28 Jul 2015 10:12:09 EDT
Single hair shows researchers what a bear has been eating
Researchers have found they can get a good idea of a grizzly bear's diet over several months by looking at a single hair. The technique, which measures residues of trace metals, can be a major tool in determining if the threatened animals are getting enough of the right foods to eat.
Tue, 28 Jul 2015 09:17:41 EDT
UV light can kill foodborne pathogens on certain fruits
The growing organic produce industry may soon have a new way to ensure the safety of fresh fruits. Scientists have shown that ultraviolet C light is effective against foodborne pathogens on the surface of certain fruits.
Tue, 28 Jul 2015 09:17:28 EDT
Plant light sensors came from ancient algae
The light-sensing molecules that tell plants whether to germinate, when to flower and which direction to grow to seek more sunlight were inherited millions of years ago from ancient algae, finds a new study. The findings are some of the strongest evidence yet against the prevailing idea that the ancestors of early plants got the red light sensors that helped them move from water to land by engulfing bacteria, the researchers say.
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