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
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(Phys.org)—In the natural world, searching for food is a high-stakes game in which animals risk starving to death or being killed by a predator. New research from the University of Bristol shows that to stay alive in a ...
Plants & Animals
Oct 2, 2012
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Scientists on Wednesday said they had developed a strain of rice that grows well in soils lacking the nutrient phosphorus, a feat that could boost crop yields for some farmers by as much as a fifth.
Biotechnology
Aug 22, 2012
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(PhysOrg.com) -- Scientists at the University of Manchester have identified an extra step in protein production, a major activity of all cells, which they believe impacts particularly on how our cells respond to stresses ...
Cell & Microbiology
May 21, 2010
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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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The 631 manatee deaths in Florida through mid-July this year already stands as the fourth deadliest annual count since records began nearly a half-century ago.
Plants & Animals
Jul 21, 2022
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Bacterial pathogens must acquire nutrient metals from the host to survive and cause disease. To counter infection, hosts attempt to starve bacteria by hiding metals away in a process called "nutritional immunity." Bacteria ...
Cell & Microbiology
Apr 15, 2019
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Civilization as it is known today could not have evolved, nor can it survive, without an adequate food supply. – Norman Borlaug
Biotechnology
Jul 9, 2015
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During the winter of 1944, the Nazis blocked food supplies to the western Netherlands, creating a period of widespread famine and devastation. The impact of starvation on expectant mothers produced one of the first known ...
Cell & Microbiology
Jul 31, 2014
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Several studies have shown that a lack of nitrogen in soils adversely affects crop yields. The modern use of nitrogen fertilizers has improved yields to meet expanding global food demand, but in some cases up to 50% of the ...
Plants & Animals
Jun 1, 2012
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