Tag: "darkness" at biology news

Molecular mechanisms that trigger flowering in spring

...of other genes that trigger flowering. However, in darkness these photoreceptors are not activated, and CONSTANS protein is attached to a small protein called ubiquitin, which marks it for degradation by the proteasome. Thus in short days, although CONSTANS mRNA is present, the protein is absent. The expressi...

A world ruled by fungi

... vegetation month by month. They depict a world in darkness where the fungi had taken over. Its known that an asteroid hit the Yucatan peninsula in Mexico at the end of the Cretaceous Period. It left a 180 km wide crater and from the impact site tsunamis developed and the Caribbean region was buried in ash an...

Antarctic fish study may aid cardiac research

...on what animals get up to during the impending 24h darkness of a polar winter, how sensitive they are likely to be to climate change, and perhaps pave the way to understanding how we may prevent a cold heart from fluttering. We know enough to realise this 'cod' is different from those species living in the ch...

How do animals exposed to 24-hour light retain their wake-sleep habits?

...by months of full light followed by months of full darkness -- retain their sleep and awake habits in such un...s daylight in the summer and 82 days of continuous darkness in the winter, a team of researchers may have begun to identify a clue. A New Study The research i...

Corals can reestablish symbiosis with algae from their environments after bleaching

... rod common to Caribbean reefs) by keeping them in darkness in the laboratory. After 12 weeks of darkness, cell densities of symbionts in the coral had plunged to less than one percent of their population density when the corals were healthy. During the six weeks following 'bleaching,' the cor...

Despite darkness, nocturnal bees learn visual landmarks while foraging at night

... to adopt a nocturnal lifestyle, with the cover of darkness allowing them to exploit food resources in relativ...ta genalis--have become nocturnal, and despite the darkness and their apparently insensitive compound eyes, they have retained remarkable visual abilities. In t...

Got the time?

...cles that are naturally shorter than 24 hours, and darkness serves as a stimulus for resetting the circadian clock (such stimuli are referred to as Zeitgeber mechanisms, from the German word meaning "time-giver"). Their analysis of expression levels at this critical Zeitgeber hour 12 produced estimated body t...

Testing the fitness of biological clocks

...shutting down photosynthesis in expectation of the darkness that never comes," says Johnson....

New hydrothermal vents discovered as 'South Pacific Odyssey' research begins

...nails and other strange animals that live in total darkness off of the hot, acidic vent water. Many scientists have dubbed the basin "the perfect geologic experiment," an ideal place to study the processes that connect Earth's deep interior to ocean ridge volcanoes and the biological communities they support...

Researchers ID chlorophyll-regulating gene

...orn - must have the ability to transition from the darkness of an underground environment to life above ground. "The development of seed burial in plants provided a long-term survival benefit through protection from predators and hostile surface conditions," said Quail. "The true test of our hypot...

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(Date:4/23/2014)... identified an important enzyme pathway that helps prevent new ... a condition that has been directly linked to cancer ... biochemistry, found that near the end of cell division, ... any breaks in DNA are fully repaired before the ... cells. This process helps safeguard against some of the ...
(Date:4/23/2014)... and accessible detection methods that can rapidly screen ... a single cell inside that population has been ... Lu. , In the Royal Society of Chemistry ... that he and his coworkers have developed a ... a protein ( Chem. Sci. , 2014, DOI: ...
(Date:4/23/2014)... April 21, 2014 Five for-profit and non-profit ... $1.25 million in Proof of Concept grants to ... into commercial products, the Life Sciences Discovery Fund ... Entrepreneur Mentoring Program grant to the Washington Biotechnology ... advisory network to train the next generation of ...
(Date:4/23/2014)... known as Ritalin, may prevent the depletion of self-control, ... a journal of the Association for Psychological Science. , ... or trying to focus attention on a boring textbook ... potential explanation for this difficulty: Exerting self-control for a ... self-control effectively on subsequent tasks. , "It is as ...
(Date:4/22/2014)... A recently FDA-approved device has been shown to ... much as 50 percent. When coupled with an innovative ... the device facilitated the complete elimination of seizures in ... the decade-long clinical trials. , That,s good news for ... the U.S. living with epilepsy whose seizures can,t be ...
Breaking Medicine News(10 mins):Health News:Study identifies enzymes that help fix cancer-causing DNA defects 2Health News:Following a protein's travel inside cells is key to improving patient monitoring, drug development 2Health News:LSDF announces commercialization grants and Entrepreneur Mentoring Program 2Health News:ADHD drug may help preserve our self-control resources 2Health News:Newly approved brain stimulator offers hope for individuals with uncontrolled epilepsy 2
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