(Phys.org) —New research shows that to prevent starvation at night, plants perform accurate arithmetic division. The calculation allows them to use up their starch reserves at a constant rate so that they run out almost ...
Biotechnology
Jun 23, 2013
12
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Researchers have discovered that the ultraviolet (UV) light that causes the temporary but painful condition of snow blindness in humans is life-saving for reindeer in the arctic.
Plants & Animals
May 26, 2011
4
0
Yeast is not the simple single-celled microorganism we once thought, but a competitive killer. When starved of glucose, yeast releases a toxin that will poison other microorganisms that have entered its surrounding habitat, ...
Cell & Microbiology
Nov 7, 2022
0
177
More than 5 billion people would die of hunger following a full-scale nuclear war between the U.S. and Russia, according to a global study led by Rutgers climate scientists that estimates post-conflict crop production.
Environment
Aug 15, 2022
13
410
A new book by a Cambridge University academic revisits one of the worst famines in recorded history. The Irish Famine of the 1840s had terrible consequences: 1 million people died and several million left Ireland. Today the ...
Other
Jul 20, 2011
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1
A family of nutrient-sensing enzymes, dubbed Rag GTPases, modulates the activity of the mTORC1 protein complex, whose inhibition is essential for autophagy and survival in newborn mammals. One enzyme, RagA, has been found ...
Cell & Microbiology
Dec 23, 2012
0
0
A particular tumor suppressor gene that fights cancer cells does more than clamp down on unabated cell division—the hallmark of the disease—it also can help make cells more fit by allowing them to fend off stress, says ...
Cell & Microbiology
May 10, 2013
0
0
In times of starvation, cells tighten their belts: they start to digest their own proteins and cellular organs. The process - known as autophagy - takes place in special organelles called autophagosomes. It is a strategy ...
Cell & Microbiology
Feb 27, 2009
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0
A lack of adequate nutrition is blamed as one of many possible causes for colony collapse disorder or CCD—a mysterious syndrome that causes a honey bee colony to die. Parasites, pesticides, pathogens and environmental changes ...
Plants & Animals
Mar 30, 2016
0
428
Hungry people are often difficult to deal with. A good meal can affect more than our mood, it can also influence our willingness to take risks. This phenomenon is also apparent across a very diverse range of species in the ...
Plants & Animals
Jun 25, 2013
0
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