News tagged with plos biology
Related topics: fruit flies , genes , protein , brain , cells
Preserving memory with age
If you lived longer, would you still remember everything? It depends. Two methods of extending life span have very different effects on memory performance and decline with age, researchers at Princeton University have shown ...
Medicine & Health / Medical research
May 18, 2010 |
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Between the genes -- a making sense of genomic 'dark matter'
A group of University of Toronto scientists have uncovered some of the secrets behind what molecular biologists call "dark matter" transcripts. The findings will be published next week in the online, open access journal PLoS Bi ...
May 18, 2010 |
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Protein power for Jack and the beanstalk
Plant geneticists are on a determined quest -- to control auxin, a powerful plant growth hormone. Auxin tells plants how to grow, where to lay down roots, how to make tissues, and how to respond to light and gravity. Knowing ...
May 17, 2010 |
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Flower organ's cells make random decisions that determine size
The sepals of the plant Arabidopsis thaliana -- commonly known as the mouse-eared cress—are characterized by an outer layer of cells that vary widely in their sizes, and are distributed in equally varied patter ...
May 17, 2010 |
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Stem cells use GPS to generate proper nerve cells
An unknown function that regulates how stem cells produce different types of cells in different parts of the nervous system has been discovered by Stefan Thor, professor of Developmental Biology, and graduate students Daniel ...
May 11, 2010 |
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Paper set to open door to new phase of evolutionary biology
(PhysOrg.com) -- Research by evolutionary biologist Professor Roger Thorpe and his world-leading team of herpetologists at Bangor University's School of Biological Sciences is contributing to a change in the ...
May 07, 2010 |
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Male or female? In flies, some cells can't tell
An experienced fruit fly researcher can tell at a glance whether the fly she is observing is male or female; a distinct pigmentation pattern on a fly's body (a type of bristle found only on the legs of males) ...
May 04, 2010 |
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Rhodopsin phototrophy promotes bacterial survival
Bacteria in the ocean can harvest light energy from sunlight to promote survival thanks to a unique photoprotein. This novel finding by a team of scientists in Sweden and Spain is to be published next week in the online, ...
Apr 27, 2010 |
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The sweet smell of aging
What does the smell of a good meal mean to you? It may mean more than you think. Specific odors that represent food or indicate danger are capable of altering an animal's lifespan and physiological profile by activating a ...
Apr 20, 2010 |
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What causes seizure in focal epilepsy?
In focal epilepsy, seizures are generated by a localized, synchronous neuronal electrical discharge that may spread to large portions of the brain. In spite of intense research in the field of epilepsy, a key question remains ...
Medicine & Health / Medical research
Apr 13, 2010 |
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Sensitive nerve cells
In Germany alone, more than 300,000 people are afflicted by Parkinson's disease and the number is growing steadily. However, despite comprehensive research, scientists are still somewhat in the dark as to ...
Medicine & Health / Medical research
Apr 06, 2010 |
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Patient referrals cause differences in hospital infection rates
Patient referrals between hospitals influence the rates of hospital-acquired infections such as MRSA, according to a study by researchers based in the Netherlands. The findings, published March 19 in the open-access journal ...
Medicine & Health / Medical research
Mar 18, 2010 |
3 / 5 (1) |
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The sexual tug-of-war -- a genomic view
The genes that are most beneficial to males are the most disadvantageous for females, and vice versa. However, this genetic conflict between the sexes is important in maintaining genetic variation within a species, researchers ...
Mar 15, 2010 |
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Timing is (almost) everything: Memory enhanced when events occur at behaviorally relevant times
What determines whether a scene is remembered or forgotten? According to a study published this week in the open access journal PLoS Biology, memory for visual scenes may not depend on attention level or what a scene contai ...
Medicine & Health / Psychology & Psychiatry
Mar 15, 2010 |
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Stickleback genomes shining bright light on evolution (w/ Video)
Twenty billion pieces of DNA in 100 small fish have opened the eyes of biologists studying evolution. After combining new technologies, researchers now know many of the genomic regions that allowed an ocean-dwelling ...
Feb 26, 2010 |
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